期刊
CHEMICAL ENGINEERING JOURNAL
卷 191, 期 -, 页码 364-368出版社
ELSEVIER SCIENCE SA
DOI: 10.1016/j.cej.2012.03.032
关键词
Microwave; H2O2; Alkaline; Rhodamine B; Degradation
资金
- National Natural Science Foundation of China [50808167]
Microwave-H2O2 (MW-H2O2) technology, one of the environmental treatment methods, was reported to usually prefer acidic and neutral circumstances in substrates' degradation. In this work, degradation of Rhodamine B (RhB) and methylene blue (MB) in MW-H2O2 system was found to be very competitive at extreme alkaline pH. This is a new finding and few studies have noticed it yet. Through radical species' tests and control experiments, degradation of RhB at strong alkaline pH in MW-H2O2 system was considered to mainly undergo oxygen oxidation, and the enhancement of MW thermal effect. This work provided a possible effective way to study the degradation at highly alkaline circumstances, and might promote the development of MW-H2O2 technology in alkaline wastewater treatment. (c) 2012 Elsevier B.V. All rights reserved.
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