Chem. J. Chinese Universities ›› 2018, Vol. 39 ›› Issue (5): 1003.doi: 10.7503/cjcu20170592

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Photocatalytic Activity of Keggin Type Polyoxometalates XW12O40n-(X=P5+, Si4+, B3+, Zn2+) Toward Degradation of Methyl Orange

WANG Bin1,4,*, WU Yingga1, LIU Zhelin2, WANG Xiaohong1, AN Zhihua1,3, ZENG Jun1, YANG Peng1, LIU Zongrui1,*   

  1. 1. College of Chemistry and Chemical Engineering, Inner Mongolia University for the Nationalities, Tongliao 028043, China
    2. School of Chemistry & Environment Engineering, Changchun University of Science and Technology, Changchun 130022, China;
    3. Departmennt of Chemistry, New York University, New York NY 10003, USA
    4. Inner Mongolia Key Lab of Carbon Nanomaterials, Tongliao 028000, China
  • Received:2017-08-31 Online:2018-04-23 Published:2018-04-23
  • Contact: WANG Bin,LIU Zongrui
  • Supported by:
    Supported by the National Natural Science Foundation of China(Nos.21401012, 21661026), the Natural Science Foundation of Inner Mongolia Autonomous Region, China(No.2015BS0207) and the Open Project of the Inner Mongolia Key Lab of Carbon Nanomaterials, China(No.MDK2017025).

Abstract:

A series of Keggin type polyoxometalates with different central heteroatoms was prepared by the conventional aqueous synthesis method and characterized by powder X-Ray diffraction(PXRD), infrared spectroscopy(FTIR) and Raman spectroscopy(Raman). The optical and electrical activities of the polyoxometalates were studied by UV-Vis spectroscopy and cyclic voltammetry(CV). The influenece of central heteroatoms, catalyst dosage, substrate concentration and pH values on photocatalytic activity of the polyoxometalates toward methyl orange were investigated. The photodegradation activity of different Keggin type polyoxometalates toward methyl orange is in the order of ZnW12>PW12>SiW12>BW12.

Key words: Polyoxometalate, Photocatalytic activity, Dagradation, Organic dye

CLC Number: 

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