标题：Degradation of C. I. Acid Orange 7 inaqueous solution by a novel electro/Fe3O4/PDS process作者：Lin, Heng; Zhang, Hui; Hou, Liwei

来源出版物：JOURNAL OF HAZARDOUS MATERIALS 卷：276 页：182-191 DOI：10.1016/j.jhazmat.2014.05.021 出版年：JUL 15 2014

摘要：The decolorization of C. I. Acid Orange 7 (AO7) in aqueous solution by Fe3O4 activated peroxydisulfate (PDS) oxidation in an electrochemical reactor (EC/Fe3O4/PDS process) was performed in this study. Various parameters were investigated to optimize the process, including initial pH, current density, PDS concentration and Fe3O4 dosage. The stability of Fe3O4 particles was observed by recycle experiments. The X-ray photoelectron spectroscopy (XPS) was applied to investigate the surface properties of Fe3O4 before and after reaction. GC-MS analysis was employed to identify the intermediate products and a plausible degradation pathway of AO7 was proposed. The change of acute toxicity during the treatment was investigated by activated sludge inhibition test. The TOC removal efficiency was 30.0% in a 90 min reaction.

入藏号：WOS:000339692700022

文献类型：Aticle

语种：English

作者关键词：AO7, Electrochemical oxidation, Fe3O4, Peroxydisulfate, Sulfate radicals

扩展关键词：ACTIVATED PERSULFATE OXIDATION; ZERO-VALENT IRON; OXONE/CO2+ REAGENT; BISPHENOL-A; AZO-DYES; ELECTRO/FE2+/PEROXYDISULFATE PROCESS; ULTRASONIC IRRADIATION; FENTON OXIDATION; REMOVAL; PH

通讯作者地址：Zhang, Hui; Wuhan Univ, Hubei Biomass Resource Chem & Environm Biotechnol, Dept Environm Engn, Wuhan 430079, Peoples R China.

电子邮件地址：eeng@whu.edu.cn

地址：[Lin, Heng; Zhang, Hui; Hou, Liwei] Wuhan Univ, Hubei Biomass Resource Chem & Environm Biotechnol, Dept Environm Engn, Wuhan 430079, Peoples R China.

研究方向：Engineering; Environmental Sciences & Ecology

ISSN：0304-3894