Allium cepa L. Peel Extract Mediated Synthesis of Magnetite (Fe3O4) Nanoparticles: Application to the Removal of Phosphorus from Dam Water  

作　　者：Naminata Sangaré Soumahoro N’guessan Louis Berenger Kouassi Koffi Martin N’Goran Tchimou Julien Aymard Edi Albert Trokourey Naminata Sangaré Soumahoro;N’guessan Louis Berenger Kouassi;Koffi Martin N’Goran;Tchimou Julien Aymard Edi;Albert Trokourey(Laboratory of Constitution and Reaction of Matter, University of Flix Houphout Boigny, Abidjan, Cte dIvoire;Laboratory of Chemistry, Departement of Mathematics, Physics and Chemistry, University of Peleforo Gon Coulibaly, Korhogo, Cte dIvoire;Training Research Unit of Marine Sciences, Polytechnic University of San-Pedro, San-Pedro, Cte dIvoire)

机构地区：[1]Laboratory of Constitution and Reaction of Matter, University of Flix Houphout Boigny, Abidjan, Cte dIvoire [2]Laboratory of Chemistry, Departement of Mathematics, Physics and Chemistry, University of Peleforo Gon Coulibaly, Korhogo, Cte dIvoire [3]Training Research Unit of Marine Sciences, Polytechnic University of San-Pedro, San-Pedro, Cte dIvoire

出　　处：《Journal of Materials Science and Chemical Engineering》2024年第12期18-32,共15页材料科学与化学工程(英文)

摘　　要：Water eutrophication is generally caused by the phosphorus excessive concentration. This phenomenon may affect the water quality. Hence, phosphorus removal from dam water which is affected by agricultural activities is not well known. The present work aimed to remove phosphorus from water using green Fe3O4 nanoparticles. Green iron oxide nanoparticles were prepared using the white and purple onion peels extracts. The stable iron oxide was selected using the antioxidant activity against 1,1-Diphenyl-2-Picrylhydrazyl. The SEM, XRD and FTIR analysis were used to characterize the nanoparticles. Phosphorus adsorption experiments were done in aqueous and real water solutions. The results showed that green iron oxide mediated by purple onion peels extracts possessed better antioxidant activities. The green magnetite (Fe3O4) nanoparticles obtained with the purple onion peels extracts have an average size of 15.81 nm and their surface were covered by phytochemicals compounds. In aqueous media, the optimum initial concentration of phosphate was 10 mg/L with a maximum adsorption percentage of 92%. The phosphate adsorption in aqueous solution by Fe3O4 was well described by the Freundlich model. The maximum adsorption capacity was 32.05 mg/g. In addition, the results also revealed that the maximum adsorption percentage of phosphorus in the dam water was 50.13%. Green Fe3O4 is therefore a good agent for removing phosphorus from polluted dam water.Water eutrophication is generally caused by the phosphorus excessive concentration. This phenomenon may affect the water quality. Hence, phosphorus removal from dam water which is affected by agricultural activities is not well known. The present work aimed to remove phosphorus from water using green Fe3O4 nanoparticles. Green iron oxide nanoparticles were prepared using the white and purple onion peels extracts. The stable iron oxide was selected using the antioxidant activity against 1,1-Diphenyl-2-Picrylhydrazyl. The SEM, XRD and FTIR analysis were used to characterize the nanoparticles. Phosphorus adsorption experiments were done in aqueous and real water solutions. The results showed that green iron oxide mediated by purple onion peels extracts possessed better antioxidant activities. The green magnetite (Fe3O4) nanoparticles obtained with the purple onion peels extracts have an average size of 15.81 nm and their surface were covered by phytochemicals compounds. In aqueous media, the optimum initial concentration of phosphate was 10 mg/L with a maximum adsorption percentage of 92%. The phosphate adsorption in aqueous solution by Fe3O4 was well described by the Freundlich model. The maximum adsorption capacity was 32.05 mg/g. In addition, the results also revealed that the maximum adsorption percentage of phosphorus in the dam water was 50.13%. Green Fe3O4 is therefore a good agent for removing phosphorus from polluted dam water.

关 键 词：Green Synthesis Onion Peels Iron Oxide Adsorption PHOSPHORUS 

分 类 号：O64[理学—物理化学]