标题：Ultrasound enhanced heterogeneous activation of peroxydisulfate by bimetallic Fe-Co/GAC catalyst for the degradation of Acid Orange 7 in water

作者：Cai, Chun; Wang, Liguo; Gao, Hong; Hou, Liwei; Zhang, Hui

来源出版物：JOURNAL OF ENVIRONMENTAL SCIENCES-CHINA 卷：26 期：6,SI 页：1267-1273 DOI：10.1016/S1001-0742(13)60598-7 出版年：JUN 1 2014

摘要：Bimetallic Fe-Co/GAC (granular activated carbon) was prepared and used as heterogeneous catalyst in the ultrasound enhanced heterogeneous activation of peroxydisulfate (PS, S2O82-) process. The effect of initial pH, PS concentration, catalyst addition and stirring rate on the decolorization of Acid Orange 7 (AO7) was investigated. The results showed that the decolorization efficiency increased with an increase in PS concentration from 0.3 to 0.5 g/L and an increase in catalyst amount from 0.5 to 0.8 g/L. But further increase in PS concentration and catalyst addition would result in an unpronounced increase in decolorization efficiency. In the range of 300 to 900 r/min, stirring rate had little effect on AO7 decolorization. The catalyst stability was evaluated by measuring decolorization efficiency for four successive cycles.

入藏号：000337205500008

文献类型：Article

语种：English

作者关键词：Fe-Co/GAC, ultrasound, heterogeneous catalysis, peroxydisulfate, sulfate radicals

扩展关键词：ZERO-VALENT IRON; PERSULFATE OXIDATION; AQUEOUS-SOLUTION; ORGANIC CONTAMINANTS;COMMON OXIDANTS;WASTE-WATER; PEROXYMONOSULFATE; COBALT; HEAT; PHOTOCATALYSIS

通讯作者地址：Zhang, Hui;Wuhan Univ, Dept Environm

Engn, Hubei Biomass Resource Chem & Environm Biotechnol, Wuhan 430079, Peoples R China.

电子邮件地址：caichun415@163.com; eeng@whu.edu.cn

地址：

[Cai, Chun; Wang, Liguo; Gao, Hong; Hou, Liwei; Zhang, Hui] Wuhan Univ, Dept Environm

Engn, Hubei Biomass Resource Chem & Environm Biotechnol, Wuhan 430079, Peoples R China.

研究方向：Environmental Sciences & Ecology

ISSN：1001-0742