Facile synthesis of Fe3O4@Cu(OH)2 composites and their As(Ⅲ) adsorption application

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• 作者：Tingting SongBing PengHaiying Wang
• 会议时间：2016-12-01
• 关键词：Magnetic composites ; Fe3O4@Cu(OH)2 ; arsenic ; adsorption ; magnetic separation
• 作者单位：Tingting Song(Department of Environmental Engineering,School of Metallurgy and Environment,Central South University,Changsha 410083,China)Bing Peng,Haiying Wang(Department of Environmental Engineering,School of Metallurgy and Environment,Central South University,Changsha 410083,China;Chinese National Engineering Research Center for Control & Treatment of Heavy Metal Pollution,Changsha,410083,China)
• 会议名称：第六届重金属污染防治及风险评价研讨会
• 会议地点：厦门
• 主办单位：中国环境科学学会
• 语种：chi

摘要

A directly coating method,controlled double-jet precipitation(CDJP),was developed for synthesizing magnetic Fe3O4@Cu(OH)2 composites in combination of advantages of magnetic rapid separation and satisfactory adsorption performance.The morphology and structure of the composites were analyzedby SEM,TEM,XRD,FTIR,XPS and VSM techniques.Through controlling the reaction on Fe3O4 particles,directly coating of Cu(OH)2 was successfully realized without the extra complicated procedures.The obtained Fe3O4@Cu(OH)2 consists of micro particles of size around 250 nm coated with special leaf-like nanomorphologies,possessing high saturation magnetization(from 56.5 to 98.84 emu g-1).As the amount of loaded Cu is increased,As(Ⅲ)removal of the composites augments from 3.76 mg g-1 to 41.41 mg g-1.The Fe3O4@Cu(OH)2 composites is a hopeful candidate for treating arsenic contaminated water.