Characteristics and kinetics of nitrobenzene reduction by sucrose-modified nanoiron

被引：11

作者：

Li Hui ^{[1
]}

Zhao Yong-sheng ^{[1
]}

Zhao Ran ^{[2
]}

Ma Bai-wen ^{[3
,4
]}

Chen Zi-fang ^{[1
]}

Su Yan ^{[1
]}

Zhou Rui ^{[1
]}

机构：

[1] Jilin Univ, Minist Educ, Key Lab Groundwater Resources & Environm, Changchun 130021, Peoples R China

[2] Arizona State Univ, Coll Liberal Arts & Sci, Dept Chem & Biochem, Phoenix, AZ 85001 USA

[3] Chinese Acad Sci, Res Ctr Ecoenvironm Sci, State Key Lab Environm Aquat Chem, Beijing 100085, Peoples R China

[4] Univ Chinese Acad Sci, Beijing 100049, Peoples R China

来源：

CHEMICAL RESEARCH IN CHINESE UNIVERSITIES | 2013年 / 29卷 / 04期

基金：

中国国家自然科学基金;

关键词：

Nanoiron; Sucrose; Nitrobenzene; Reduction reaction; Kinetic; ZERO-VALENT IRON; GROUNDWATER; NANOSCALE; DEGRADATION; WATER; PH;

D O I：

10.1007/s40242-013-3041-7

中图分类号：

O6 [化学];

学科分类号：

0703 ;

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.

引用

页码：765 / 770

页数：6

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