Synthesis of Flower-like Manganese Wad and Its Decolorization Performance for Azo Dye Congo Red

doi:10.1007/s40242-014-3384-8

Chemical Research in Chinese Universities ›› 2014, Vol. 30 ›› Issue (2): 306-309.doi: 10.1007/s40242-014-3384-8

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Synthesis of Flower-like Manganese Wad and Its Decolorization Performance for Azo Dye Congo Red

YANG Aili¹, WEI Bingqing², ZHANG Zhengjun¹

1. Department of Materials Science and Engineering, Tsinghua University, Beijing 100085, P. R. China;
2. Department of Mechanical Engineering, University of Delaware, Newark, DE 19716, USA

Received:2013-09-11 Revised:2013-12-18 Online:2014-04-01 Published:2014-01-13
Contact: YANG Aili E-mail:yangaili770117@126.com
Supported by:
Supported by the National Science Foundation of USA(No.1067947).

Abstract

Abstract:

Flower-like manganese wad(MW) with high activity was synthesized via ultrasonic-assisted redox reaction of sole manganese salt MnO₄^-. MW was characterized by X-ray diffraction(XRD), scanning electron micros-copy(SEM) and X-ray photoelectron spectroscopy(XPS). The experimental results indicate that the maximum decolorization rate of Congo red(CR) reached above 95% within 15 min in a wide pH range from 2.0 to 6.0. Results also show that MW has excellent decolorization performance for azo dye CR which implies potential application for removing dye pollutants from industrial effluents.

Key words: Manganese wad, Ultrasonic synthesis, Congo red, Decolorization

YANG Aili, WEI Bingqing, ZHANG Zhengjun. Synthesis of Flower-like Manganese Wad and Its Decolorization Performance for Azo Dye Congo Red[J]. Chemical Research in Chinese Universities, 2014, 30(2): 306-309.

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Synthesis of Flower-like Manganese Wad and Its Decolorization Performance for Azo Dye Congo Red

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