光谱学与光谱分析 |
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Decoloration and Degradation of Direct Pink 12B by Microwave-Promoted Heterogeneous Fenton-Like Reaction |
ZHENG Huai-li, XIE Li-guo, HU Peng, JIAO Shi-jun, HU Xue-bin, LIU Lan, WU You-quan |
Key Laboratory of the Three Gorges Reservoir Regions Eco-Environment, Ministry of Education, Chongqing University, Chongqing 400045, China |
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Abstract Microwave-promoted heterogeneous Fenton-like reaction, the combination of Fenton-like reagent with microwave, is an efficient method for waste water treatment. In the present paper, the degradation of direct pink 12B (a kind of organic dye) was studied using this method was studied. Through numerous experiments, the influences of various parameters including the initial pH value, dosage of Fe-Ni-Mn/Al2O3,dosage of H2O2 and microwave were investigated intensively. The characteristic curve of direct pink12B, the concentration-absorbency curve of direct pink12B, the orthogonal optimization tests and comparative tests were given. In this paper, the mechanisms of this reaction were also been probed. It is concluded from the experiments that the microwave can accelerate the process of degradation effectively. Under optimal conditions, the overall color removal was more than 99.0% within 10 min. In the study, all the characterization was carried out using UV-Vis spectral-analysis.
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Received: 2009-09-06
Accepted: 2009-12-12
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Corresponding Authors:
ZHENG Huai-li
E-mail: ZHL6512@126.com
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