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Synthesis, characterization and size control of zerovalent iron nanoparticles anchored on montmorillonite

查看全文 作　　者：FAN [1,2]MingDe;YUAN [1]Peng;CHEN [3]TianHu;HE [1]HongPing;YUAN [4]AiHua;CHEN [5]KangMin;ZHU [1]JianXi;LIU [1,6]Dong 高影响力作者 机构地区：[1]Guangzhou Institute of Geochemistry, Chinese Academy of Sciences, Guangzhou 510640, China;[2]College of Environment and Resources, Inner Mongolia University, Hohhot 010021, China;[3]School of Resources and Environmental Engineering, Hefei University of Technology, Hefei 230009, China;[4]School of Materials Science and Engineering, Jiangsu University of Science and Technology, Zhenjiang 212003, China;[5]School of Materials Science an Engineering, Jiangsu University, Zhenjian 212003, China;[6]Graduate School of the Chinese Academy of Sciences, Beijing 100039, China高影响力机构 出　　处：《Chinese Science Bulletin》索引2010年第55卷第11期,共8页高影响力期刊 基　　金：supported by the National Natural Science Foundation of China (Grant No. 40672036);the Knowledge Innovation Program of the Chinese Academy of Sciences (Grant No. Kzcx2-yw-112);National Science Fund for Distinguished Young Scholars (Grant No. 40725006);Program of Higher-level talents of Inner Mongolia University (Grant No. Z20090131) 摘　　要：Zerovalent iron nanoparticles have been successfully synthesized using sodium borohydride solution reduction of ferric trichloride hexahydrate in the presence of montmorillonite as an effective protective reagent and support as well. A combination of characterizations reveals that with high monodispersity these obtained iron nanoparticles are well dispersed on clay surface, virginal from boron related impurity, and oxidation resistant well with iron core-iron oxide shell structure. The shell thickness of 3 nm remains almost invariable under ambient conditions. The size control of these iron nanoparticles has been achieved by tailoring the amount of the ferric iron, which mainly depends on the protective action of montmorillonite. 关 键 词：纳米颗粒 钠蒙脱石 零价铁 规模控制 合成 铁纳米粒子 表征 氯化铁溶液
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