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An improved Stober method towards uniform and monodisperse Fe3O4@C nanospheres
Zhang, Xue-Bin1; Tong, Hong-Wu1; Liu, Shao-Min1; Yong, Guo-Ping1; Guan, Ya-Feng1,2
刊名JOURNAL OF MATERIALS CHEMISTRY A
2013
DOI10.1039/c3ta11249g
1期:25页:7488-7493
收录类别SCI
文章类型Article
WOS标题词Science & Technology ; Physical Sciences ; Technology
类目[WOS]Chemistry, Physical ; Energy & Fuels ; Materials Science, Multidisciplinary
研究领域[WOS]Chemistry ; Energy & Fuels ; Materials Science
关键词[WOS]POLYCYCLIC AROMATIC-HYDROCARBONS ; LITHIUM-ION BATTERIES ; CORE-SHELL STRUCTURES ; AQUEOUS-SOLUTION ; CARBON SPHERES ; SILICA SPHERES ; NANOPARTICLES ; PARTICLES ; REMOVAL ; POLYMER
英文摘要Significant progress has recently been made in the synthesis of Fe3O4@C nanospheres with uniform, monodisperse and tunable carbon shells. Fe3O4@C nanospheres were obtained by directly carbonizing Fe3O4@polymer which was synthesized by a versatile and economical Stober method with resorcinol and formaldehyde as precursors. The synthesis conditions in the formation of Fe3O4@polymer were systematically investigated. It was found that the yield of the Fe3O4@polymer is highly influenced by the concentration of ammonium hydroxide, and the monodispersity is mainly affected by the concentration of ammonium hydroxide and the citrate group sites outside the surfaces of the Fe3O4 nanospheres. Interestingly, carbonization of Fe3O4@polymer at high temperature makes the grain sizes of Fe3O4 in Fe3O4@C samples larger than those in the Fe3O4 sample, which makes the saturation magnetization value for the Fe3O4@C samples higher than those of common obtained materials. The adsorption performance of Fe3O4@C for anthracene was tested both in water and in cyclohexane solution; it shows fast adsorption rates (about 1 h to reach equilibrium in water and 3 h in cyclohexane solution) and high adsorption capacities (31.5 mg g(-1) in water and 2 mg g(-1) in cyclohexane solution), which are ascribed to its high uniformity and monodispersity. These make Fe3O4@C an ideal adsorption and enrichment material, especially for polycyclic aromatic hydrocarbons in water and in organic solvents.
语种英语
WOS记录号WOS:000319886500025
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文献类型期刊论文
条目标识符http://cas-ir.dicp.ac.cn/handle/321008/137857
专题中国科学院大连化学物理研究所
作者单位1.Univ Sci & Technol China, Dept Chem, Hefei 230026, Peoples R China
2.Chinese Acad Sci, Dalian Inst Chem Phys, Key Lab Separat Sci Analyt Chem, Lab Instrumentat & Analyt Chem, Dalian 116023, Liaoning, Peoples R China
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Zhang, Xue-Bin,Tong, Hong-Wu,Liu, Shao-Min,et al. An improved Stober method towards uniform and monodisperse Fe3O4@C nanospheres[J]. JOURNAL OF MATERIALS CHEMISTRY A,2013,1(25):7488-7493.
APA Zhang, Xue-Bin,Tong, Hong-Wu,Liu, Shao-Min,Yong, Guo-Ping,&Guan, Ya-Feng.(2013).An improved Stober method towards uniform and monodisperse Fe3O4@C nanospheres.JOURNAL OF MATERIALS CHEMISTRY A,1(25),7488-7493.
MLA Zhang, Xue-Bin,et al."An improved Stober method towards uniform and monodisperse Fe3O4@C nanospheres".JOURNAL OF MATERIALS CHEMISTRY A 1.25(2013):7488-7493.
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