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Zhiming Chen, Zhirong Geng, Zhiyang Zhang, Lianbing Ren, Tingxian Tao, Renchun Yang and Zuxiang Guo Synthesis of Magnetic Fe3O4@C Nanoparticles Modified with –SO3H and –COOH Groups for Fast Removal of Pb2+, Hg2+, and Cd2+ Ions European Journal of Inorganic Chemistry 2014

Version of Record online: 6 JUN 2014 | DOI: 10.1002/ejic.201301500

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Core–shell magnetic Fe3O4@C nanoparticles are functionalized with sulfonic and carboxylic acid groups and employed to capture heavy metal ions in aqueous media. The magnetic Fe3O4@C nanoparticles can be easily separated with an external magnet and possess rapid removal kinetics, high adsorption capacities, and removal efficiencies for Pb2+, Hg2+, and Cd2+ ions from aqueous solution.

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