@Research Paper
<#LINE#>Development of geopolymers based on local clay for the depollution of industrial wastewater<#LINE#>Pascal Gbétondji @DAZOGBO,Guevara @NONVIHO,Sèmiyou Ayélé @OSSENI,Arouna @YESSOUFOU,Philémon Mindétonhou @ZANOU,Ferdinand Sèdjro Didier @GOUNDJO,Waris Kéwouyèmi @CHOUTI <#LINE#>1-11<#LINE#>1.ISCA-RJCS-2023-026.pdf<#LINE#>Laboratory of Physical Chemistry, Materials and Molecular Modeling / Unit of Inorganic Chemistry, Materials Engineering and Environment (LCP3M / UCIIME), Faculty of Science and Technology (FAST), University of Abomey-Calavi (UAC), 01BP 526 Cotonou, Benign and Laboratory of Water and Environmental Sciences and Techniques (LSTEE), National Water Institute (INE), University of Abomey-Calavi (UAC), 01BP 526 Cotonou, Benin@Laboratory for Study and Research in Applied Chemistry (LERCA), Ecotoxicology and Quality Study Research Unit (UREEQ), Polytechnic School of Abomey-Calavi (EPAC/UAC), Cotonou, Benin@Applied Hydrology Laboratory (LHA), National Water Institute (INE), University of Abomey-Calavi (UAC), 01BP526 Cotonou, Benin@Kaba Chemistry and Applications Research Laboratory, Faculty of Sciences and Technologies of Natitingou, UNSTIM, Benin@Laboratory of Physical Chemistry, Materials and Molecular Modeling / Unit of Inorganic Chemistry, Materials Engineering and Environment (LCP3M / UCIIME), Faculty of Science and Technology (FAST), University of Abomey-Calavi (UAC), 01BP 526 Cotonou, Benign and Laboratory of Water and Environmental Sciences and Techniques (LSTEE), National Water Institute (INE), University of Abomey-Calavi (UAC), 01BP 526 Cotonou, Benin@Laboratory of Physical Chemistry, Materials and Molecular Modeling / Unit of Inorganic Chemistry, Materials Engineering and Environment (LCP3M / UCIIME), Faculty of Science and Technology (FAST), University of Abomey-Calavi (UAC), 01BP 526 Cotonou, Benign@Laboratory of Physical Chemistry, Materials and Molecular Modeling / Unit of Inorganic Chemistry, Materials Engineering and Environment (LCP3M / UCIIME), Faculty of Science and Technology (FAST), University of Abomey-Calavi (UAC), 01BP 526 Cotonou, Benign<#LINE#>5/12/2023<#LINE#>9/1/2024<#LINE#>During this study, geopolymers were developed from natural clays, collected in the village of Etigbo in southern Benin. The objective of this research is to evaluate the adsorption potential of modified clay with respect to methylene blue. Several kaolinite-based geopolymers were prepared with different ratios of SiO2 /Al2O 3 and an alkaline activator. X-ray diffraction (XRD) analysis of the samples showed amorphous structure favorable for the adsorption of dyes. Adsorption tests were carried out using the geopolymer named Eti24 and different parameters (contact duration, pH effect of pH, initial concentration of the dye, etc.) have been studied to optimize the MB process of removal. Studies of the adsorption kinetics of this dye on the geopolymer were also carried out. The adsorption equilibrium showed that the absorption kinetic is of pseudo-second order and more compatible with Freundlich model. The results revealed that the Eti24 geopolymer can serve as a basis for more sophisticated methods of treating aqueous effluents.<#LINE#>Barreca S. and Orecchio S. A. 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(1994).@Removal of paraquat by adsorption on ‘waste’ Fe (III)/Cr (III) hydroxide: adsorption rates and equilibrium studies.@Pesticide science, 41(1), 7-12.@Yes$El-Naas M., H., Al-Muhtaseb S., A. and Makhout S. (2009).@Biodegradation of phenol by Pseudomonas putida immobilized in polyvinyl alcohol (PVA) gel.@Journal of hazardous materials, 164 (2-3), 720-725.@Yes$Tocchi C., Federici E., Fidati L., Manzi R., Vincigurerra V. and Petruccioli M. (2012).@Aerobic treatment of dairy wastewater in an industrial three-reactor plant: effect of aeration regime on performances and on protozoan and bacterial communities.@Water Res., 46, 3334–3344.@Yes$Zhang Y., Causserand C., Aimar P. and Cravedi J. P. (2006).@Removal of bisphenol A by a nanofiltration membrane in view of drinking water production.@Water Research, 40(20), 3793–3799.@Yes$Dbrowski A., Hubicki Z., Podkocielny P. and Robens E. 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(2003).@Equilibrium and kinetics of color removal from dye solutions with bentonite and polyaluminum hydroxide.@Water Environ. Res., 75, 15-20.@Yes$Yu R., Yeh L. et Thomas A. (1995).@Color removal from wastewater by adsorption using powdered activated carbon: mass transfer studies.@J. Chem. Technol. Biotechnol., 63, 48-55.@Yes$Bergaya, F. and Lagaly, G. (2006).@General Introduction: Clays, Clay Minerals, and Clay Science.@In: Bergaya F., Theng B.K.G. and Lagaly, G., Eds., Handbook of Clay Science: Developments in Clay Science. 1, Elsevier, Amsterdam,1-18.http://dx.doi.org/10.1016/S1572-4352(05) 01001-9@Yes$Roulia M. et Vassilliadis A.A. (2005).@Interactions between C.i. Basic Blue 41 and aluminosilicate sorbents.@J. Colloid Interf. Sci., 291, 37 44.@Yes$Khater, H.M., Ezzat, M. and Nagar, A. M. El. (2016).@Alkali Activator Eco-Friendly Metakaolin / Slag Geopolymer Building Bricks.@Chemistry and Materiels Research, 8(1),21-32.@Yes$Xu, M.X., He, Y., Liu, Z.H., Tong, Z.F. and Cui, X.M. (2019).@Preparation of geopolymer inorganic membrane andpurification of pulp-papermaking green liquor.@Appl. Clay Sci., 168, 269–275.@Yes$Harjito D. and Rangan B. V. (2005).@Development And Properties Of Low-Calcium Fly Ashbased Geopolymer Concrete.@Research Report Gc1. Faculty of Engineering, Curtin University of Technology Perth, Australia 94.@Yes$Zefeng Y., Weifeng S., Jiayao L. and Qiuhua L. (2020).@Improved Simultaneous Adsorption of Cu(II) and Cr(Vi) of Organic Modified Metakaolin-Based Geopolymer.@Arabian Journal of Chemistry, 13, 4811–4823.@Yes$Zarina Y. K. N. I., Rafiza A. R., and Andrei V., S., Mohd M., A.B. A., Kamarudin H. (2015).@Effect of Solids-To-Liquids, Na2SiO3-To-Naoh And Curing Temperature On The Palm Oil Boiler Ash (Si + Ca) Géopolymérisation System.@Materials. 8, 2227-2242; Doi:10.3390/Ma80522 27.@Yes$Agbahoungbata M.Y. (2017).@Development of adsorbent and composite materials based on clay, moringaoleifera and TiO2 for improving the photocatalytic properties of TiO2 used in wastewater treatment. Doctoral thesis from the University of Abomey-Calavi, Exact and Applied Sciences Doctoral School.@Specialty Inorganic Chemistry, 71, 111.@No$Limousin G., Gaudet J.P. and Charlet L. (2007).@Sorption Isotherms: a review on physical bases, modeling and measurement.@Appl. Geochem. 22, 275–294.@Yes$Crini G. and Badot P.M. (2007).@Treatment and Purification of Polluted Industrial Water.@Presses Universitaires De Franchecomté, Besançon, France, 352.@No$Ebrahimian P., Saberikhah A., Badrouh E. M. and Emami, M.S. (2014).@Alkali Treated Foumanat Tea Wasteas An Efficient Adsorbent for Methylene Blue Adsorption from Aqueous Solution.@Water Resources and Industry, 6, 64-80.@Yes$Srivastava V. C., Swamy M. M., Malli D., Prasad B. and Mishra I. M. (2006).@Adsorptive removal of phenol by bagasse fly ash and activated carbon: Equilibrium, kinetics and thermodynamics.@Colloids Surfaces A: Physicochem. Eng. Asp., 272, 89-104.@Yes$HO Y. S. and Mckay G. (1999).@Pseudo-second order model for sorption processes.@Proc. Biochem., 34, 451-465. 26.@Yes$Azadeh EP., Elham S., Moslem B. and Mohammad S.E. (2014).@Alkali Treated Foumanat Tea Waste As An Effi Cient Adsorbent for Methylene Blue Adsorption From Aqueous Solution.@Water Resources and Industry, 6, 64–80.@Yes$Khelifi O., Mehrez I., Ben Salah W., Ben Salah F., Younsi M., Nacef M. and Affoune A.M. (2016).@Study of the adsorption of methylene blue (Bm) from aqueous solutions on a biosorbent prepared from Algerian date stones.@Larhyss Journal, 28, 135-148.@Yes$Yah O. and Fripiat J. (1979).@Data Handbook for Clay Minerals and Other Non-Metallic Minerals.@Pergamon Press.@Yes$Laibi AB., Gomina M., Sorgho B., Sagbo E., Blanchart P., Boutouil M. and Sohounhloule DKC. (2017).@Physico-Chemical and Geotechnical Characterization of Two Clay Sites in Benin with a View to Their Valorization in Eco-Construction.@International Journal of Biological And Chemical Sciences, 11(1), 499-514.@No$Ofomaja A.E. (2007).@Kinetics and Mechanism of Methylene Blue Sorption Onto Palm Kernel Fiber.@Process Biochemistry, 42,16–24.@Yes$Elbariji S., Elamine M., Eljazouli H., Kabli H., Lacherai A. and Albourine A. (2006).@Treatment and valorization of wood by-products. Application to the elimination of industrial dyes.@CR Chemistry, 9, 1314-1321.@Yes$Ncibi M,C., Mahjoub B. and Seffen M. (2007).@Kinetic and Equilibrium Studies of Methylene Blue Biosorption by Posidonia Oceanica (L) Fibres.@J. Hazard. Mater. B., 139, 280-285.@Yes$Hameed B.H. and El-Khaiary M.I. (2008).@Equilibrium, kinetics and mechanism of malachite green adsorption on activated carbon prepared from bamboo by K2CO3 activation and subsequent gasification with CO2.@J. Hazard. 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<#LINE#>Simple and sensitive LC-ESI-MS method for estimation of dexketoprofen in plasma samples<#LINE#>Sandeep @Zaware,Neel @Lahoti,Shubham @Chaudhari <#LINE#>12-18<#LINE#>2.ISCA-RJCS-2023-028.pdf<#LINE#>Synergen Bio Private Limited, Unit Nos. 101 to 104 and 309 to 311, Sai Chambers, 302, Old Mumbai - Pune Highway, Wakadewadi, Shivajinagar, Pune, Maharashtra - 411003, India @Synergen Bio Private Limited, Unit Nos. 101 to 104 and 309 to 311, Sai Chambers, 302, Old Mumbai - Pune Highway, Wakadewadi, Shivajinagar, Pune, Maharashtra - 411003, India @Synergen Bio Private Limited, Unit Nos. 101 to 104 and 309 to 311, Sai Chambers, 302, Old Mumbai - Pune Highway, Wakadewadi, Shivajinagar, Pune, Maharashtra - 411003, India <#LINE#>16/12/2023<#LINE#>4/3/2024<#LINE#>A simple and sensitive LC-ESI-MS assay was developed to determine the concentration of dexketoprofen in human plasma. Dexketoprofen and ketoprofen D3 (internal standard) were extracted from the plasma using solid phase extraction technique and injected onto Phenomenex Luna C18 100mm*4.6 mm, 3µm. The mobile phase consisted of Acetonitrile: 0.2% Formic Acid (65:35, v/v) and was delivered isocratically at a flow rate of 1.0 mL/min (Split 50:50 v/v). The MRM mode for dexketoprofen and internal standard ketoprofen D3 were detected at m/z 255.1→209.2 and 258.1→212.2 and the run time was 3 min. The detection limit of dexketoprofen was 50.0ng/mL, and the calibration curve was linear between 50.0 and 6000.0ng/ml. Concentrations of drugs were determined by using a validated LC-MS/MS method.<#LINE#>Ameyibor E. and Stewart J.T. (1998).@HPLC determination of ketoprofen enantiomers in human serum using a nonporous octadecylsilane 1.5 microns column with hydroxypropyl beta-cyclodextrin as mobile phase additive.@J. Pharm Biomed Anal., 17, 83–8. https://doi.org/10.1016/S0731-7085(97)00161-1.@Yes$Ballesteros-Gómez A. and Rubio S. (2012).@Environment-responsive alkanol-based supramolecular solvents: Characterization and potential as restricted access property and mixed-mode extractants.@Anal Chem., 84, 342–9. https://doi.org/10.1021/ac2026207.@Yes$Bhusari V.K. and Dhaneshwar S.R. (2011).@Application of a stability-indicating tlc method for the quantitative determination of dexketoprofen trometamol in pharmaceutical dosage forms.@J. Liq Chromatogr Relat Technol., 34, 2606–20. https://doi.org/10.1080/10826076. 2011.593071.@Yes$Tettey-Amlalo RNO and Kanfer I. (2008).@Rapid UPLC-MS/MS method for the determination of ketoprofen in human dermal microdialysis samples.@J. Pharm Biomed Anal., 50, 580–6. https://doi.org/10.1016/j.jpba.2008.09. 051.@Yes$Vaghela A., Patel A., Vyas A. and Patel N. (2016).@Sample preparation in bioanalysis: A review.@Int J Scientific Technol Res., 5, 6–10.@Yes$Moein M.M., El Beqqali A. and Abdel-Rehim M. (2017).@Bioanalytical method development and validation: Critical concepts and strategies.@J. Chromatogr B Anal Technol Biomed Life Sci. 1043, 3–11. https://doi.org/10.1016/j.jchromb.2016.09.028.@Yes$Miranda H.F., Sierralta F., Aranda N., Noriega V. and Prieto J.C. (2016).@Pharmacological profile of dexketoprofen in orofacial pain.@Pharmacol Rep., 68, 1111–4. https://doi.org/10.1016/j.pharep.2016.06.015.@Yes$Mabrouk M.M., Hammad S.F., El-fatatry H.M. and El-Malla S.F. (2014).@Spectroscopic methods for determination of dexketoprofen trometamol and tramadol HCl.@Pharm Analysis Quality Assurance., 4, 276–82.@Yes$Kole PL, Venkatesh G, Kotecha J and Sheshala R. (2011).@Recent advances in sample preparation techniques for effective bioanalytical methods.@Biomed Chromatogr., 25, 199–217. https://doi.org/10.1002/bmc.1560.@Yes$Haq N, Iqbal M, Alanazi FK, Alsarra IA, Shakeel F. (2017).@Applying green analytical chemistry for rapid analysis of drugs: Adding health to pharmaceutical industry.@Arab J Chem., 10, 777–85. https://doi.org/10. 1016/j.arabjc.2012.12.004.@Yes
<#LINE#>Determination of Physiochemical and Mechanical Properties of Composite Panels Produced from Grewia Mollis Root Fiber/Polyester<#LINE#>Mohammed A. @Usman,Buba A. @Aliyu,Kalu M. @Kalu,Ago Maina @Mam,Iliya Ibrahim @Nkafamiya,Emmanuel K. @Chinedu,Salisu @Yusuf,Reuben Sunday @Yunana <#LINE#>19-24<#LINE#>3.ISCA-RJCS-2024-001.pdf<#LINE#>Department of Integrated Science, Umar Suleiman College of Education, P.M.B 02, Gashua, Yobe State, Nigeria   @Department of Chemistry, Modibbo Adama University, P.M.B 2076, Yola Adamawa State, Nigeria@Department of Chemistry, Gombe state University, P.M.B 127, Tudun Wada, Gombe, Gombe State, Nigeria@Department of Horticulture Technology, Federal College of Forest Resources Management, P.M.B 1189, Maiduguri, Borno State, Nigeria@Department of Chemistry, Modibbo Adama University, P.M.B 2076, Yola Adamawa State, Nigeria@Department of Chemistry, Modibbo Adama University, P.M.B 2076, Yola Adamawa State, Nigeria@Department of Integrated Science, Umar Suleiman College of Education, P.M.B 02, Gashua, Yobe State, Nigeria   @Department of Chemistry, Modibbo Adama University, P.M.B 2076, Yola Adamawa State, Nigeria<#LINE#>1/2/2024<#LINE#>28/3/2024<#LINE#>These days, a lot of researchers are working in the field of polymer composites containing natural fibers to develop either fully or partially biodegradable green composite due to increasing concerns about the environment. This study determined the physiochemical and mechanical properties of composite panels produced from Grewia mollis (GM) root fibre/polyester. Experimental research design was adopted for the study. The Grewia mollis root fibre was extracted and chemically processed by retting, scouring, bleaching, and mercerizing respectively. The traditional hand lay-up method was applied in producing the composite panels and their physiochemical and mechanical properties were determined according to ASTM standards. Descriptive statistics of percentage (%) scatter plot and bar charts were used to analyze and present the data. The result revealed that oil absorption increases while water absorption decreases as the concentration of NaOH increases and static with time. This implies that the untreated fibre-reinforced composites absorb more water than oil whereas the treated fibre-reinforced composites absorb more oil than water. The mechanical properties of the treated fibre-reinforced composites were improved significantly as the concentrations of NaOH increases up to a threshold point of 15% before experiencing a decrease from threshold points of 20-25%. This shows that composites treated with 5–15% NaOH gave better improvements than 20–25% and the maximum improvements were found for 15% NaOH. Therefore, on the basis of % NaOH, threshold point of 15% possessed the ideal combination of mechanical qualities. The outcome shown that the treated fiber-reinforced composites might be used as an alternative to other naturally fiber-based products since they offered better physiochemical and mechanical qualities than the untreated fiber-reinforced composites. According to the study, appropriately adjusting these processing parameters may result in a more effective or practical composite panel solution for our home and commercial uses, including the furniture, automobile, and construction industries, among others.<#LINE#>May-Pat A., Valadez-González A. and Herrera-Franco P.J. (2013).@Effect of fiber surface treatments on the essential work of fracture of HDPE-continuous henequen fiber-reinforced composites.@Polym Test; 32(6), 1114-1122. doi:10.1016/j.polymertesting.@Yes$Fogorasi M.S. and Barbu I. (2013).@The potential of natural fibres for automotive sector - Review.@In: IOP Conference Series: Materials Science and Engineering. 252. Institute of Physics Publishing; doi:10.1088/1757-899X/252/1/012044.@Yes$Sanyang M.L., Ilyas R.A., Sapuan S.M. and Jumaidin R. (2017).@Sugar palm starch-based composites for packaging applications.@In: Bio-nanocomposites for Packaging Applications. Springer International Publishing, 125-147. doi:10.1007/978-3-319-67319-6_7.@Yes$Ilyas R.A., Sapuan S.M., Ishak M.R. and Zainudin E.S. (2019).@Sugar palm nano fibrillated cellulose (Arenga pinnata (Wurmb.) Merr): Effect of cycles on their yield, physic-chemical, morphological and thermal behavior.@Int. J. Biol. Macromol. 123, 379-388. doi:10.1016/j.ijbiomac. 2018.11.124.@Yes$D’Urso L., Spadaro S. and Bonsignore M. (2018).@Zinc oxide nano colloids prepared by picosecond pulsed laser ablation in water at different temperatures.@In: EPJ Web of Conferences. Vol 167. EDP Sciences. doi:10.1051/epjconf/ 201816704008.@Yes$Lokantara I. A. (2020).@Review on Natural Fibers: Extraction Process and Properties of Grass Fibers.@International Journal of Mechanical Engineering and Technology 11(1), 84-91.@Yes$Ilyas R.A., Sapuan S.M., Ishak M.R. and Zainudin E.S. (2018).@Development and characterization of sugar palm nanocrystalline cellulose reinforced sugar palm starch bio nanocomposites.@Carbohydr Polym. (202) 186-202. doi:10.1016/j.carbpol.2018.09.002.@Yes$John L., Kalu K.M., Abubakar F, Abubakar Y., Kenneth R. and Dass P. M. (2023).@Production and Characterization of Composite from Waste Faro Water Bottles and Groundnut Husk for Use as Egg Tray.@Asian Journal of Current Research, 8(3),14-26. doi:10.56557/ajocr/2023/v8i38346.@Yes$Dass P.M., Maitera O.N., Jang W.J. and Aimable R. (2018).@Production and Testing of Some Physicochemical Properties of Polyethylene Terephthalate Waste Bottles (Faro)/Tea Leaves Waste Fibres Composite.@3(2).@Yes$Usman M.A., John, Ezekiel S., Lauwali Tafida and Gashua F.M. (2023).@Investigation of the Potential Application of Grewia Mollis Root Fiber-Reinforced Polyester Composite In Panel Board Production.@www.seahipaj.org.@Yes$Muñoz E. and García-Manrique J.A. (2015).@Water absorption behaviour and its effect on the mechanical properties of flax fibre reinforced bio epoxy composites.@Int J Polym Sci., 4(2). doi:10.1155/2015/390275.@Yes$Azwin Ahad N. and Nih H. (2012).@Oils and Water Absorption Behavior of Natural Fibers Filled TPU Composites for Biomedical Applications.@https://www.researchgate.net/publication/328802877.@Yes$Akter N., Saha J., Das S.C. and Khan M.A. (2018).@Effect of bitumen emulsion and polyester resin mixture on the physico-mechanical and degradable properties of jute fabrics.@Fibers., 6(3). doi:10.3390/fib6030044.@Yes$Saha J., Chandra Das S., Rahman M., Siddiquee M.B. and Ahmad Khan M. (2016).@Influence of Polyester Resin Treatment on Jute Fabrics for Geotextile Applications.@Journal of Textile Science and Technology, 02(04), 67-14. doi:10.4236/jtst.2016.24009.@Yes$Al-Mosawi A.I. and Ali A.M. (2012).@Mechanical Properties of Plants-Synthetic Hybrid Fibers Composites.@1(4). https://www.researchgate.net/publication/235769 035.@Yes$Arun Prakash V.R. and Viswanthan R. (2019).@Fabrication and characterization of echinoidea spike particles and kenaf natural fibre-reinforced Azadirachta-Indica blended epoxy multi-hybrid bio composite.@Compos Part A Appl Sci Manuf., 118, 317-326. doi:10.1016/j.compositesa.2019.01. 008.@Yes$Nguyen S.T. Feng J. and Le N.T. (2013).@Cellulose aerogel from paper waste for crude oil spill cleaning.@Ind Eng Chem Res., 52(51), 18386-18391. doi:10.1021/ie4032 567.@Yes$Likon M., Remškar M., Ducman V. and Švegl F. (2013).@Populus seed fibers as a natural source for production of oil super absorbents.@J Environ Manage., 114, 158-167. doi:10.1016/j.jenvman.2012.03.047.@Yes$Jordá-Vilaplana A., Carbonell-Verdú A., Samper M.D., Pop A. and Garcia-Sanoguera D. (2017).@Development and characterization of a new natural fiber reinforced thermoplastic (NFRP) with Cortaderia selloana (Pampa grass) short fibers.@Compos Sci Technol., 145, 1-9. doi:10.1016/j.compscitech.2017.03.036.@Yes$Dong T., Xu G. and Wang F. (2015).@Oil spill clean-up by structured natural sorbents made from cattail fibers.@Ind Crops Prod., 76, 25-33. doi:10.1016/j.indcrop.2015.06.034.@Yes$Le Troedec M., Sedan D. and Peyratout C. (2008).@Influence of various chemical treatments on the composition and structure of hemp fibres.@Compos Part A Appl Sci Manuf. 39(3), 514-522. doi:10.1016/j.compositesa.2007.12.001.@Yes$Xue Y., Du Y., Elder S., Wang K. and Zhang J. (2009).@Temperature and loading rate effects on tensile properties of kenaf bast fiber bundles and composites.@Compos B Eng. 40(3), 189-196. doi:10.1016/j.compositesb.2008.11. 009.@Yes
<#LINE#>Heterogeneous Fenton processes for the degradation of methylene blue in aqueous solution: Application of composite biochar doped with magnetite<#LINE#>Abdoul Ntieche @Rahman,Gervais Ndongo @Kounou,Sakué Ngankam @Eric,Kouotou @Daouda,Tamafo Fouegue Aymard @Didier,Abdelaziz @Baçaoui <#LINE#>25-31<#LINE#>4.ISCA-RJCS-2024-003.pdf<#LINE#>Department of Chemistry, Higher Teacher Training College Bertoua, The University of Bertoua, PO Box 652, Bertoua, Cameroon@Physical and Theoretical Chemistry Laboratory, Department of Inorganic Chemistry, Faculty of Science, University of Yaoundé I, Yaoundé, Cameroon@Department of Chemistry, Higher Teacher Training College Bertoua, The University of Bertoua, PO Box 652, Bertoua, Cameroon@Physical and Theoretical Chemistry Laboratory, Department of Inorganic Chemistry, Faculty of Science, University of Yaoundé I, Yaoundé, Cameroon@Department of Chemistry, Higher Teacher Training College Bertoua, The University of Bertoua, PO Box 652, Bertoua, Cameroon@Department of Chemistry, Faculty of Science Semlalia, University of Cady Ayyad, Marrakech, Morocco<#LINE#>18/2/2024<#LINE#>1/3/2024<#LINE#>The degradation of methylene blue (MB) in aqueous solution by heterogeneous Fenton process using two synthetized materials was investigated. One is a biochar material namely PB1P15 derived from banana peels-plastic bottles composite and another is a magnetized biochar material namely PB1P15M synthetized by co-precipitation of iron III chloride hexahydrate (FeCl3.6H2O) and iron II chloride tetrahydrate (FeCl2.4H2O) of the aforementioned biochar. The two synthetized materials were characterized by X-ray diffraction (XRD), scanning electron microscopy (SEM-EDX), Fourier transformed infrared (FTIR) and Brunauer-Emmett-Teller / Barret-Joyner-Halenda (BET/BJH) techniques. The characterization analyses revealed successively, the appearance of reverse spinel groups of magnetite, elongation vibration of Fe-O bonds and specific surfaces areas of 83.03m2/g to 163.9m2/g for biochar (PB1P15) and diochar/Fe3O4 (PB1P15M) respectively. This prominence presence of iron oxides in the magnetite forms (Fe3O4) mainly on PB1P15M surface was used as catalyst for heterogeneous Fenton process for MB degradation. The photo-Fenton analyses tests indicated a strong degradation of MB of 69.7% in dark condition and up to 98.4% in the presence of UV light. These results were obtained under optimum conditions of 80mg/L and pH equals to 2 of MB solution, 0.2mg/L of H2O2 solution with 15mg of PB1P15M in one hour of contact time. Finally, the catalysts performances were tested by its recovery in MB solution through magnetic separation and reused three times without any loss of activated denoted.<#LINE#>Mukhlish M.Z.B., Khan M.M.R., Islam A.R. and A.N.M.S (2016).@Akanda1 Removal of reactive dye from aqueous solution using coagulation–flocculation coupled with adsorptionon papaya leaf.@Journal of Mechanical Engineering and Sciences, 10, 1884, 1894.@Yes$Abid A.F., Zablouk M.A. and   Abid-Alameer A.M. (2012).@Experimental study of dye removal from industrial wastewater by membrane technologies of reverse osmosis and nanofiltration.@Iranian Journal of environmental Health Science & Engineering, 9, 1-9.@Yes$Nasrollahpour A. and Moradi S.E. (2015).@Photochemical degradation of methylene blue by metal oxide-supportedactivated carbon photocatalyst.@Desalination and Water Treatment, 1-9.@Yes$Yu S., Liu M., Ma M., Qi M., Lü  Z. and Gao, C. (2010).@Impacts of membrane properties on reactive dye removal from dye/salt mixtures by asymmetric cellulose acetate and composite polyamide nanofiltration membranes.@Journal of Membrane Science, 350, 83–91.@Yes$Chen B., Cao Y., Zhao H., Long F., Feng X., Li J. and Pan X. (2010).@A novel Fe3+-stabilized magnetic polydopamine composite for enhanced selective adsorption and separation of Methylene blue from complex wastewater.@Journal of Hazardous Materials, 392, 1-15.@Yes$Kim, S. D.; Cho J.; Kim I. S.; Vanderford, B. J. and Snyder S. A. (2007).@Occurrence and removal of pharmaceuticals and endocrine disruptors in South Korean surface, drinking, and waste waters.@Water Research, 41, 1013−1021.@Yes$Zaviska F., Drogui P., Mercier G. and Blais J-F. (2009).@Procédésd’oxydationavancée dans le traitement des eaux et des effluents industriels: Application à la dégradation des polluantsréfractaires.@Revue des Sciences de l’Eau, 22, 535-564.@Yes$Aboel-Magd A-W., Al-Sayed A-S., Omima M. and Osama N. (2017).@Photocatalytic degradation of paracetamol over magnetic flower-like TiO2/Fe2O3 core-shell nanostructures.@Journal of Photochemistry and Photobiology A Chemistry, 347, 186-198.@Yes$Khan M. R., Asw K. and Fahmida G. (2015).@Photocatalytic Degradation of Methylene Blue by Magnetite+H2O2+UV Process.@International Journal of Environmental Science and Development, 7, 325-329.@Yes$Kai Z.,  Jubo Z., Yan W., Longxue G., Mingyu D., Fang Y., Wenhui B., Tao Y. and Daxin L. (2018).@Photo-Fenton Degradation of Organic Dyes Based on a Fe3O4 Nanospheres/Biomass Composite Loaded Column.@Journal of Nanoscience and Nanotechnology, 18, 4288-4295@Yes$Teguh E.S., Oktaviana D.I.P., Abu M.N.H. and Miftahul A. (2016).@The Modification of Carbon with Iron Oxide Synthesized in Electrolysis Using the Arc Discharge Method.@Materials Science and Engineering, 176, 1-6.@Yes$Jong-Hwan P., Jim J. W., Ran X., Negar T., Ronald D. D.  and Dong-Cheol S.(2017).@Degradation of Orange G by Fenton-like reaction with Fe-impregnated biochar catalyst.@Bioresource Technology. doi:10.1016/j.biortech.2017.10. 030.@Yes$Md Manik M. and Guijian L. (2018).@Recent progress in biochar-supported photocatalysts: synthesis, role of biochar, and applications.@The Royal Society of Chemistry, 8, 14237–14248.@Yes$Poedji L.H., Muhammad F., Ridwan, M. and DediS. (2013).@Synthesis and Properties of Fe3O4 Nanoparticles by Co-precipitation Method to Removal Procion Dye.@International Journal of Environmental Science and Development, 4, 336-340.@Yes$Shalini G. and Saima H. K. (2016).@Removal of methylene blue from waste water using banana peel as adsorbent.@International Journal of Science, Environment, 5, 3230-3236.@Yes$Monika J., Mithilesh Y., Tomas K., Manu L., Vinod K.G and Mika S. (2018).@Development of iron oxide/activated carbon nanoparticle composite for the removal of Cr(VI), Cu(II) and Cd(II) ions from aqueous solution.@Water Resources and Industry, 1-59.  doi:10.1016/j.wri.2018.10. 001@Yes$Aroke U.O., Abdulkarim A. and Oaubunka R.O. (2013).@Fourier-transform infrared characterization of kaolin, granite, bentonite and barite.@ATBU Journal of environnemental technology, 6, 42-53.@Yes$Fatemeh A., Ali H. and Sirous N. (2013).@Surface modification of Fe3O4@undefined@Yes$SiO2 microsphere by silane coupling agent.@International nano letters, 3, 1-5@undefined@Yes$Zhang, J., Fan S., Lu B., Cai Q., Zhao J. and Zang S. (2019).@Photodegradation of naphthalene over Fe3O4 under visible light irradiation.@Royal Society Open Science, 6, 181779, 1-14.  doi:10.1098/rsos.181779.@Yes$Cristina T. F. Leonardus F.S., Vergütz L., Pacheco A.A., Melo L.F., Renato N.S. and Melo L.C.A. (2020).@Characterization and application of magnetic biochar for the removal of phosphorus from water.@Annals of the Brazilian Academy of Sciences, 3, 1-13.doi 10.1590/0001-3765202020190440.@Yes$Lincheng Z., Yanming S., Junrui L.,  Zhengfang Y., He Z.,  Junjun M., Yan J., Weijie G. and Yanfeng L. (2014).@Preparation and Characterization of Magnetic Porous Carbon Microspheres for Removal of Methylene Blue by a Heterogeneous Fenton Reaction.@Applied Materials and Interfaces, 6, 7275−7285.@Yes
<#LINE#>Heterogeneous Fenton processes for the degradation of methylene blue in aqueous solution: Application of composite biochar doped with magnetite<#LINE#>Abdoul Ntieche @Rahman,Gervais Ndongo @Kounou,Sakué Ngankam @Eric,Kouotou @Daouda,Tamafo Fouegue Aymard @Didier,Abdelaziz @Baçaoui <#LINE#>25-31<#LINE#>4.ISCA-RJCS-2024-003.pdf<#LINE#>Department of Chemistry, Higher Teacher Training College Bertoua, The University of Bertoua, PO Box 652, Bertoua, Cameroon@Physical and Theoretical Chemistry Laboratory, Department of Inorganic Chemistry, Faculty of Science, University of Yaoundé I, Yaoundé, Cameroon@Department of Chemistry, Higher Teacher Training College Bertoua, The University of Bertoua, PO Box 652, Bertoua, Cameroon@Physical and Theoretical Chemistry Laboratory, Department of Inorganic Chemistry, Faculty of Science, University of Yaoundé I, Yaoundé, Cameroon@Department of Chemistry, Higher Teacher Training College Bertoua, The University of Bertoua, PO Box 652, Bertoua, Cameroon@Department of Chemistry, Faculty of Science Semlalia, University of Cady Ayyad, Marrakech, Morocco<#LINE#>18/2/2024<#LINE#>1/3/2024<#LINE#>The degradation of methylene blue (MB) in aqueous solution by heterogeneous Fenton process using two synthetized materials was investigated. One is a biochar material namely PB1P15 derived from banana peels-plastic bottles composite and another is a magnetized biochar material namely PB1P15M synthetized by co-precipitation of iron III chloride hexahydrate (FeCl3.6H2O) and iron II chloride tetrahydrate (FeCl2.4H2O) of the aforementioned biochar. The two synthetized materials were characterized by X-ray diffraction (XRD), scanning electron microscopy (SEM-EDX), Fourier transformed infrared (FTIR) and Brunauer-Emmett-Teller / Barret-Joyner-Halenda (BET/BJH) techniques. The characterization analyses revealed successively, the appearance of reverse spinel groups of magnetite, elongation vibration of Fe-O bonds and specific surfaces areas of 83.03m2/g to 163.9m2/g for biochar (PB1P15) and diochar/Fe3O4 (PB1P15M) respectively. This prominence presence of iron oxides in the magnetite forms (Fe3O4) mainly on PB1P15M surface was used as catalyst for heterogeneous Fenton process for MB degradation. The photo-Fenton analyses tests indicated a strong degradation of MB of 69.7% in dark condition and up to 98.4% in the presence of UV light. These results were obtained under optimum conditions of 80mg/L and pH equals to 2 of MB solution, 0.2mg/L of H2O2 solution with 15mg of PB1P15M in one hour of contact time. Finally, the catalysts performances were tested by its recovery in MB solution through magnetic separation and reused three times without any loss of activated denoted.<#LINE#>Mukhlish M.Z.B., Khan M.M.R., Islam A.R. and A.N.M.S (2016).@Akanda1 Removal of reactive dye from aqueous solution using coagulation–flocculation coupled with adsorptionon papaya leaf.@Journal of Mechanical Engineering and Sciences, 10, 1884, 1894.@Yes$Abid A.F., Zablouk M.A. and   Abid-Alameer A.M. (2012).@Experimental study of dye removal from industrial wastewater by membrane technologies of reverse osmosis and nanofiltration.@Iranian Journal of environmental Health Science & Engineering, 9, 1-9.@Yes$Nasrollahpour A. and Moradi S.E. (2015).@Photochemical degradation of methylene blue by metal oxide-supportedactivated carbon photocatalyst.@Desalination and Water Treatment, 1-9.@Yes$Yu S., Liu M., Ma M., Qi M., Lü  Z. and Gao, C. (2010).@Impacts of membrane properties on reactive dye removal from dye/salt mixtures by asymmetric cellulose acetate and composite polyamide nanofiltration membranes.@Journal of Membrane Science, 350, 83–91.@Yes$Chen B., Cao Y., Zhao H., Long F., Feng X., Li J. and Pan X. (2010).@A novel Fe3+-stabilized magnetic polydopamine composite for enhanced selective adsorption and separation of Methylene blue from complex wastewater.@Journal of Hazardous Materials, 392, 1-15.@Yes$Kim, S. D.; Cho J.; Kim I. S.; Vanderford, B. J. and Snyder S. A. (2007).@Occurrence and removal of pharmaceuticals and endocrine disruptors in South Korean surface, drinking, and waste waters.@Water Research, 41, 1013−1021.@Yes$Zaviska F., Drogui P., Mercier G. and Blais J-F. (2009).@Procédésd’oxydationavancée dans le traitement des eaux et des effluents industriels: Application à la dégradation des polluantsréfractaires.@Revue des Sciences de l’Eau, 22, 535-564.@Yes$Aboel-Magd A-W., Al-Sayed A-S., Omima M. and Osama N. (2017).@Photocatalytic degradation of paracetamol over magnetic flower-like TiO2/Fe2O3 core-shell nanostructures.@Journal of Photochemistry and Photobiology A Chemistry, 347, 186-198.@Yes$Khan M. R., Asw K. and Fahmida G. (2015).@Photocatalytic Degradation of Methylene Blue by Magnetite+H2O2+UV Process.@International Journal of Environmental Science and Development, 7, 325-329.@Yes$Kai Z.,  Jubo Z., Yan W., Longxue G., Mingyu D., Fang Y., Wenhui B., Tao Y. and Daxin L. (2018).@Photo-Fenton Degradation of Organic Dyes Based on a Fe3O4 Nanospheres/Biomass Composite Loaded Column.@Journal of Nanoscience and Nanotechnology, 18, 4288-4295@Yes$Teguh E.S., Oktaviana D.I.P., Abu M.N.H. and Miftahul A. (2016).@The Modification of Carbon with Iron Oxide Synthesized in Electrolysis Using the Arc Discharge Method.@Materials Science and Engineering, 176, 1-6.@Yes$Jong-Hwan P., Jim J. W., Ran X., Negar T., Ronald D. D.  and Dong-Cheol S.(2017).@Degradation of Orange G by Fenton-like reaction with Fe-impregnated biochar catalyst.@Bioresource Technology. doi:10.1016/j.biortech.2017.10. 030.@Yes$Md Manik M. and Guijian L. (2018).@Recent progress in biochar-supported photocatalysts: synthesis, role of biochar, and applications.@The Royal Society of Chemistry, 8, 14237–14248.@Yes$Poedji L.H., Muhammad F., Ridwan, M. and DediS. (2013).@Synthesis and Properties of Fe3O4 Nanoparticles by Co-precipitation Method to Removal Procion Dye.@International Journal of Environmental Science and Development, 4, 336-340.@Yes$Shalini G. and Saima H. K. (2016).@Removal of methylene blue from waste water using banana peel as adsorbent.@International Journal of Science, Environment, 5, 3230-3236.@Yes$Monika J., Mithilesh Y., Tomas K., Manu L., Vinod K.G and Mika S. (2018).@Development of iron oxide/activated carbon nanoparticle composite for the removal of Cr(VI), Cu(II) and Cd(II) ions from aqueous solution.@Water Resources and Industry, 1-59.  doi:10.1016/j.wri.2018.10. 001@Yes$Aroke U.O., Abdulkarim A. and Oaubunka R.O. (2013).@Fourier-transform infrared characterization of kaolin, granite, bentonite and barite.@ATBU Journal of environnemental technology, 6, 42-53.@Yes$Fatemeh A., Ali H. and Sirous N. (2013).@Surface modification of Fe3O4@undefined@Yes$SiO2 microsphere by silane coupling agent.@International nano letters, 3, 1-5@undefined@Yes$Zhang, J., Fan S., Lu B., Cai Q., Zhao J. and Zang S. (2019).@Photodegradation of naphthalene over Fe3O4 under visible light irradiation.@Royal Society Open Science, 6, 181779, 1-14.  doi:10.1098/rsos.181779.@Yes$Cristina T. F. Leonardus F.S., Vergütz L., Pacheco A.A., Melo L.F., Renato N.S. and Melo L.C.A. (2020).@Characterization and application of magnetic biochar for the removal of phosphorus from water.@Annals of the Brazilian Academy of Sciences, 3, 1-13.doi 10.1590/0001-3765202020190440.@Yes$Lincheng Z., Yanming S., Junrui L.,  Zhengfang Y., He Z.,  Junjun M., Yan J., Weijie G. and Yanfeng L. (2014).@Preparation and Characterization of Magnetic Porous Carbon Microspheres for Removal of Methylene Blue by a Heterogeneous Fenton Reaction.@Applied Materials and Interfaces, 6, 7275−7285.@Yes
<#LINE#>Synthesis, Characterization and Thermal decomposition kinetic studies of some transition metal ion complexes of Diphenyl Glycolic acid- Leucine<#LINE#>Pranamya @N.P,G.@Indiradevi,Susannah @Seth <#LINE#>32-37<#LINE#>5.ISCA-RJCS-2024-004.pdf<#LINE#>Department of Chemistry, Zamorin’s Guruvayurappan College, Calicut, India@Department of Chemistry, Zamorin’s Guruvayurappan College, Calicut, India@Department of Chemistry, Malabar Christian College, Calicut, India<#LINE#>24/3/2024<#LINE#>3/4/2024<#LINE#>Techniques such as elemental analysis, magnetic moment, molar conductance, UV-Vis, and FT-IR were used to characterize the recently synthesized diphenyl glycolic acid-Leucine ligand and its Cr (III), Ni (II), and Cu (II) complexes. Thermal analysis was used to determine the thermal stability and decomposition pattern of the Cr (III), Ni (II), and Cu (II) complexes. The TG curves were used to compute kinetic parameters such as activation energy (ΔE), frequency factor (A), entropy of activation (Δs), and order parameter (n) using the Coats Redfern and Horowitz Metzger equations. Nine mechanistic equations have been used to examine the reaction mechanism by employing non-isothermal approaches. The end products are discovered to be their corresponding oxides, and [CrBL(H2O)2(CH3COO)2] < [CuBL(H2O)2(CH3COO)2] < [Ni(BL)2(H2O)2] is the sequence in which they are most stable. The Cr (III) and Cu (II) complexes exhibit two-stage decomposition pattern in their TG curve whereas Ni (II) complex shows a three-stage decomposition pattern.<#LINE#>Qin, W., Long, S., Panunzio, M. and Stefano, B. (2013).@Schiff bases: a short survey on an evergreen chemistry tool.@Molecules,18(10),12264–12289.@Yes$Kumar, S., Dhar, D. N. and Saxena, P. N., (2009).@Applications of metal complexes of Schiff bases-a review.@Journal of Scientific and Industrial Research, 68(3), 181–187.@Yes$Katwal, R., Kaura, H. and Kapur, B. K. (2013).@Applications of copper— Schiff ’s base complexes: a review.@Scientific Reviews & Chemical Communications, 3(1), 1–15,@Yes$Mohamed, G. G., Omar, M. M. and Hindy, A. M. (2006).@Metal complexes of Schiff bases: preparation, characterization, and biological activity.@Turkish Journal of Chemistry, 30(3), 361–382.@Yes$Kuwar, A.S.K., Shimpi, S. R., Mahulikar, P. P.  and Bendre, R. S. (2006).@Synthesis characterization and antimicrobial activities of metal complexes of 2-formyl thymol oxime.@65,665-669.@Yes$Nath, M., & Yadav, R. (1997).@Spectral Studies and In Vitro Antimicrobial Activity of New Organotin (IV) Complexes of Schiff Bases Derived from Amino Acids.@Bulletin of the Chemical Society of Japan, 70(6), 1331-1337.@Yes$Reddy, R. R., Radhikka, M. and Manjusha, (2005).@Synthesis and characterization of mixed ligand complex of Zn(II) and Co(II) with amino acid.@J. Chem. Sci., 117(3), 239-246.@Yes$Saha, S., Dhanasekaran, D., Chandraleka, S., & Panneerselvam, A. (2009).@Synthesis, characterization and antimicrobial activity of cobalt metal complex against multi drug resistant bacterial and fungal pathogens.@Facta universitatis-series: Physics, Chemistry and Technology, 7(1), 73-80.@Yes$Haines, P. J. (2012).@Thermal methods of analysis: principles, applications and problems.@Springer Science & Business Media.@Yes$Lukaszewski, G. M. & Redfern, J. P. (1961).@Thermogravimetric Analysis. I. Introduction; II. Applications; III. Techniques used in conjunction with thermogravimetry; IV. Some theoretical considerations.@Lab. Pract., 10, 469.@Yes$Duval C. (1962).@In org. Ther. Grav. Analysis.@Elsevier, New York, 2nd ed.@No$Smoothers W.J. and M.S. Yao Chiang, (1966).@Hand book of differential thermal analysis.@Chemical publishing Co:, New York.@Yes$Wendlandt W.W, (1974).@Thermal methods of analysis, John Wiley, New York, 2nd Ed.@undefined@Yes$Nath Mala, (1991).@Thermochim. Acta, 185(1), 11-24.@undefined@Yes$Morteza, M., Reza, M. S. A., & Shiva, J. (2012).@Synthesize, Characterization and Thermal behavior of some New Mercury and Cadmium halides Coordination compounds of Recently synthesized Schiff base.@Research Journal of Recent Sciences, 11(1), 9–15.@Yes