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高等学校化学研究 ›› 2013, Vol. 29 ›› Issue (4): 765-770.doi: 10.1007/s40242-013-3041-7

• Articles • 上一篇    下一篇

Characteristics and Kinetics of Nitrobenzene Reduction by Sucrose-modified Nanoiron

LI Hui1, ZHAO Yong-sheng1, ZHAO Ran2, MA Bai-wen3,4, CHEN Zi-fang1, SU Yan1, ZHOU Rui1   

  1. 1. Key Laboratory of Groundwater Resources and Environment, Ministry of Education, Jilin University, Changchun 130021, P. R. China;
    2. Department of Chemistry &Biochemistry, College of Liberal Arts &Science, Arizona State University, Phoenix 85001, USA;
    3. State Key Laboratory of Environmental Aquatic Chemistry, Research Center for Eco-Environmental Sciences, Chinese Academy of Sciences, Beijing 100085, P. R. China;
    4. University of Chinese Academy of Sciences, Beijing 100049, P. R. China
  • 收稿日期:2013-01-25 修回日期:2013-04-17 出版日期:2013-08-01 发布日期:2013-07-15
  • 通讯作者: ZHOU Rui E-mail:zhour@jlu.edu.cn
  • 基金资助:

    Supported by the National Natural Science Foundation of China(No.41272256) and the Special Research of Public Welfare Industry of State Environmental Protection of China(Nos.2013A073, 201009009).

Characteristics and Kinetics of Nitrobenzene Reduction by Sucrose-modified Nanoiron

LI Hui1, ZHAO Yong-sheng1, ZHAO Ran2, MA Bai-wen3,4, CHEN Zi-fang1, SU Yan1, ZHOU Rui1   

  1. 1. Key Laboratory of Groundwater Resources and Environment, Ministry of Education, Jilin University, Changchun 130021, P. R. China;
    2. Department of Chemistry &Biochemistry, College of Liberal Arts &Science, Arizona State University, Phoenix 85001, USA;
    3. State Key Laboratory of Environmental Aquatic Chemistry, Research Center for Eco-Environmental Sciences, Chinese Academy of Sciences, Beijing 100085, P. R. China;
    4. University of Chinese Academy of Sciences, Beijing 100049, P. R. China
  • Received:2013-01-25 Revised:2013-04-17 Online:2013-08-01 Published:2013-07-15
  • Contact: ZHOU Rui E-mail:zhour@jlu.edu.cn
  • Supported by:

    Supported by the National Natural Science Foundation of China(No.41272256) and the Special Research of Public Welfare Industry of State Environmental Protection of China(Nos.2013A073, 201009009).

被引次数

16

摘要：

Sucrose-modified nanoscale zero-valent iron(SM-NZVI) was prepared with liquid phase reducing method, and characterized by transmission electron microscopy(TEM) and X-ray diffraction(XRD) for the shape and structure. The size of SM-NZVI particles was about 100―150 nm and they displayed better dispersity. The degradation of nitrobenzene(NB) in water by SM-NZVI was carried out in batch experiments. The results indicate that the efficiency of NB reduction via SM-NZVI increased by 44.24% compared with that via NZVI, and coexistent Ca2+, Mg2+, HCO3- and other ions showed little effect on NB reduction but negative influence on aniline(AN) production. Furthermore, the kinetic researches indicate that NB reduction with SM-NZVI could be described by pseudo first-order kinetic model at different initial pH values and iron dosage. The oxidation products of iron were mainly Fe3O4 and Fe2O3 with irregular shape.

关键词: Nanoiron, Sucrose, Nitrobenzene, Reduction reaction, Kinetic

Abstract:

Sucrose-modified nanoscale zero-valent iron(SM-NZVI) was prepared with liquid phase reducing method, and characterized by transmission electron microscopy(TEM) and X-ray diffraction(XRD) for the shape and structure. The size of SM-NZVI particles was about 100―150 nm and they displayed better dispersity. The degradation of nitrobenzene(NB) in water by SM-NZVI was carried out in batch experiments. The results indicate that the efficiency of NB reduction via SM-NZVI increased by 44.24% compared with that via NZVI, and coexistent Ca2+, Mg2+, HCO3- and other ions showed little effect on NB reduction but negative influence on aniline(AN) production. Furthermore, the kinetic researches indicate that NB reduction with SM-NZVI could be described by pseudo first-order kinetic model at different initial pH values and iron dosage. The oxidation products of iron were mainly Fe3O4 and Fe2O3 with irregular shape.

Key words: Nanoiron, Sucrose, Nitrobenzene, Reduction reaction, Kinetic