Chinese Journal of Catalysis ›› 2013, Vol. 34 ›› Issue (11): 2125-2129.DOI: 10.1016/S1872-2067(12)60717-7

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Degradation of methylene blue with H2O2 over a cupric oxide nanosheet catalyst

Maiyong Zhua,b, Dehai Menga, Chengjiao Wanga, Jian Dia, Guowang Diaoa   

  1. a College of Chemistry and Chemical Engineering, Yangzhou University, Yangzhou 225002, Jiangsu, China;
    b School of Materials Science & Engineering, Jiangsu University, Zhenjiang 212013, Jiangsu, China
  • Received:2013-06-30 Revised:2013-09-16 Online:2013-10-18 Published:2013-10-18
  • Contact: Guowang Diao
  • Supported by:

    This work was supported by the National Natural Science Foundation of China (20973151, 21273195) and the Foundation of Jiangsu Provincial Key Program of Physical Chemistry in Yangzhou University.

Abstract:

Cupric oxide (CuO) nanosheets were prepared by the hydrothermal method with the use of cetyltrimethylammonium bromide (CTAB) and were used as the catalyst for the oxidation degradation of methylene blue with H2O2. The effects of temperature, oxidant concentration, and catalyst dosage were evaluated. The catalytic reaction obeyed first order kinetics, and the activation energy was 54 kJ/mol. Although the CuO nanosheets show high activity, their stability and reusability still need improvement.

Key words: Cupric oxide, Nanosheet, Methylene blue, Oxidation degradation