文献类型：期刊文献

英文题名：The Generation of Hydroxyl Radicals by Hydrogen Peroxide Decomposition on FeOCl/SBA-15 Catalysts for Phenol Degradation

作者：Yang, Xue-jing[1];Tian, Peng-fei[1];Zhang, Xiao-man[1];Yu, Xin[1];Wu, Ting[1];Xu, Jing[1];Han, Yi-fan[1]

机构：[1]E China Univ Sci & Technol, Dept Chem Engn, State Key Lab Chem Engn, Shanghai 200237, Peoples R China

年份：2015

卷号：61

期号：1

起止页码：166

外文期刊名：AICHE JOURNAL

收录：;WOS:【SCI-EXPANDED(收录号:WOS:000346598500015)】；

基金：The authors are grateful to the support from the National Science Foundation (21176071, 21106041, 21273070), the Program for New Century Excellent Talents in university (NCET-12-0852), Science and Technology Commission of Shanghai Municipality (11JC1402700, 14230710700), Shanghai Natural Science Foundation (11ZR1408400), Fundamental Research Funds for the Central Universities and the Chinese Education Ministry 111 project (B08021). The authors also thank Dr. Di He from New South Wales University for the informative advise and Mr. Xinchao Xu for the helpful discussion.

语种：英文

外文关键词：iron oxychloride; hydroxyl radicals; hydrogen peroxide; phenol degradation; Fenton-like catalyst; kinetics

摘要：Iron oxychloride (FeOCl) supported on mesoporous silica (SBA-15), as a Fenton-like solid catalyst for phenol degradation, showed supreme activity for production of hydroxyl radical (HO) by H2O2 decomposition, and the generation capacity was comparable to the conventional Fenton reagent (Fe2++H2O2). The structure of FeOCl was characterized with spectroscopies. The generation of HO species during the reaction was detected using 5,5-dimethyl-1-pyrroline N-oxide trapped electron paramagnetic resonance. Furthermore, the kinetics in detail was driven for the creation and diffusion of HO by H2O2 decomposition over FeOCl, which follows a first-order rate through a two-step reaction. With the combination of the catalyst structure and kinetic parameters, the plausible mechanism for H2O2 decomposition during the oxidative degradation of phenol was rationalized. As a Fenton-like solid catalyst, FeOCl/SBA-15 is a promising alternative for the removal of low-level organic contaminates from water. (c) 2014 American Institute of Chemical Engineers AIChE J, 61: 166-176, 2015