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
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