催化学报 ›› 2013, Vol. 34 ›› Issue (11): 2125-2129.DOI: 10.1016/S1872-2067(12)60717-7

• 研究论文 • 上一篇    下一篇

CuO纳米片催化H2O2氧化降解亚甲基蓝

朱脉勇a,b, 孟德海a, 王程姣a, 狄健a, 刁国旺a   

  1. a 扬州大学化学化工学院, 江苏扬州225002;
    b 江苏大学材料科学与工程学院, 江苏镇江212013
  • 收稿日期:2013-06-30 修回日期:2013-09-16 出版日期:2013-10-18 发布日期:2013-10-18
  • 通讯作者: Guowang Diao
  • 基金资助:

    国家自然科学基金(20973151,21273195);扬州大学物理化学江苏省重大项目.

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.

摘要:

以十六烷基三甲基溴化铵(CTAB)为保护剂, 采用水热法成功制备了CuO纳米片. 将制备的CuO纳米片在H2O2存在下用于催化氧化降解亚甲基蓝, 探讨了其在不同反应条件(如温度、氧化剂浓度及催化剂用量)下对亚甲基蓝降解反应的影响. 该催化反应符合一级动力学模型, 活化能为54.0kJ/mol. CuO纳米片表现出非常高的催化活性, 但其稳定性与重复利用性有待于进一步提高.

关键词: 氧化铜, 纳米片, 亚甲基蓝, 氧化降解

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