Production and Characterization of Green Biosorbent Based on Modified Corn Cob Decorated Magnetite Nanoparticles  

作　　者：N’guadi Blaise Allou N’goran Sévérin Eroi Mougo André Tigori Patrick Atheba Albert Trokourey N’guadi Blaise Allou;N’goran Sévérin Eroi;Mougo André Tigori;Patrick Atheba;Albert Trokourey(Laboratoire de Constitution et Réaction de la Matière, UFR SSMT, Université Félix Houphouët Boigny, Abidjan, Côte d’Ivoire;Laboratoire de Thermodynamique et de Physico-Chimie du Milieu, UFR SFA, Université Nangui Abrogoua, Abidjan, Cote d’Ivoire;Laboratoire des Sciences et Technologies de l’Environnement, UFR Environnement, Université Jean Lorougnon Guédé, Daloa, Côte d’Ivoire;Institut National de la Recherche Scientifique (INRS-ETE), Université du Québec, Quebec City, Canada)

机构地区：[1]Laboratoire de Constitution et Réaction de la Matière, UFR SSMT, Université Félix Houphouët Boigny, Abidjan, Côte d’Ivoire [2]Laboratoire de Thermodynamique et de Physico-Chimie du Milieu, UFR SFA, Université Nangui Abrogoua, Abidjan, Cote d’Ivoire [3]Laboratoire des Sciences et Technologies de l’Environnement, UFR Environnement, Université Jean Lorougnon Guédé, Daloa, Côte d’Ivoire [4]Institut National de la Recherche Scientifique (INRS-ETE), Université du Québec, Quebec City, Canada

出　　处：《Journal of Materials Science and Chemical Engineering》2023年第2期1-12,共12页材料科学与化学工程（英文）

摘　　要：In most developing countries, particularly in the countries of sub-Saharan Africa, corn cobs are considered as waste polluting the environment during the harvest period of this cereal. In order to valorize this agricultural waste, high-performance, inexpensive and low-energy consumption magnetic bioadsorbents were prepared from corn cobs. The chemically activated raw corn cob was magnetized by coating the surface with magnetite nanoparticles. The prepared biosorbents were characterized by FT-IR, XRD, FE-SEM associated with EDX, HR-TEM, TG analysis, BET surface area analysis and XPS. The maximum specific surface area of 35.22 m²/g was reached. An attempt to use of these magnetic biosorbents for the removal of heavy metal like Cr(VI) from aqueous solution was envisaged.In most developing countries, particularly in the countries of sub-Saharan Africa, corn cobs are considered as waste polluting the environment during the harvest period of this cereal. In order to valorize this agricultural waste, high-performance, inexpensive and low-energy consumption magnetic bioadsorbents were prepared from corn cobs. The chemically activated raw corn cob was magnetized by coating the surface with magnetite nanoparticles. The prepared biosorbents were characterized by FT-IR, XRD, FE-SEM associated with EDX, HR-TEM, TG analysis, BET surface area analysis and XPS. The maximum specific surface area of 35.22 m²/g was reached. An attempt to use of these magnetic biosorbents for the removal of heavy metal like Cr(VI) from aqueous solution was envisaged.

关 键 词：Green Biosorbent Corn Cob Magnetite Nanoparticles Surface Chemistry NaOH Activation 

分 类 号：TG1[金属学及工艺—金属学]