Degradation of rhodamine B by Fe(0)-based Fenton process with H2O2
Degradation of rhodamine B by Fe(0)-based Fenton process with H2O2
复制标题
基于 Fe(0) 的 Fenton 工艺 H2O2 降解罗丹明 B
DOI：
10.1016/j.chemosphere.2011.03.005
复制
发表时间：
2011-05-01
期刊：
影响因子：
8.8
通讯作者：
Yin, Guang-Cai
中科院分区：
文献类型：
--
作者：
Hou, Mei-Fang;Liao, Lin;Yin, Guang-Cai
研究了以Fe(0)为基础的Fenton法过氧化氢降解罗丹明B的情况。考察了H_2O_2投加量、Fe(0)投加量、罗丹明B初始浓度和初始pH值对罗丹明B降解的影响。结果表明，低浓度的H_2O_2和Fe(0)对罗丹明B有降解和矿化作用。采用紫外-可见光谱和离子色谱对罗丹明B的中间体进行了分析，并对其氧化降解机理进行了探讨。以Fe(0)为基础的Fenton过程中产生的活性氧物种(中心点OH)是罗丹明B通过N-脱乙基化、生色团裂解、开环和矿化等途径降解的关键。(C)2011爱思唯尔有限公司。保留所有权利。
Degradation of rhodamine B by Fe(0)-based Fenton process with H2O2 was investigated. The effects of H2O2 dose, Fe(0) dose, initial concentration of rhodamine B and initial pH value on the degradation of rhodamine B were examined. The results showed that the degradation and mineralization of rhodamine B occurred with low dose of H2O2 and Fe(0). The intermediates of rhodamine B were analyzed with UV-Vis spectrophotometry and ion chromatography and the mechanism of oxidative degradation of chodamine B was also discussed. The reactive oxygen species (center dot OH) produced in Fe(0)-based Fenton process with H2O2 is the key to the degradation of rhodamine B by ways of N-de-ethylation, chromophore cleavage, ring-opening and mineralization. (C) 2011 Elsevier Ltd. All rights reserved.