Synthesis, characterization and size control of zerovalent iron nanoparticles anchored on montmorillonite
- ISSN号:0250-3301
- 期刊名称:《环境科学》
- 时间:0
- 分类:TQ110[化学工程—无机化工] TB383[一般工业技术—材料科学与工程]
- 作者机构:[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
- 相关基金:This work was 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) and Program of Higher-level talents of Inner Mongolia University (Grant No. Z20090131). We thank Dr. Dongxiao Wu, Analytical and Testing Center, South China University of Technology, for her assistance in the TEM measurement. Thanks also go to the anonymous referees for valuable comments on the manuscript.
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, zerovalent iron nanoparticles, montmorillonite, core-shell structured, chemical solution reduction
中文摘要:
Zerovalent 铁 nanoparticles 成功地被综合了也面对 montmorillonite 把铁的 trichloride hexahydrate 的钠 borohydride 溶液减小用作有效保护的试剂和支持。描述的联合表明与高 monodispersity,这些获得的铁 nanoparticles 好在泥土表面上分散了,从硼处女相关杂质,和氧化有铁核心铁氧化物的抵抗的井壳结构。3 nm 的壳厚度在周围的条件下面仍然保持几乎不变。这些铁 nanoparticles 的尺寸控制被定制铁的铁的数量完成了,它主要取决于 montmorillonite 的保护的行动。
英文摘要:
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.