CuO纳米片催化H_2O_2氧化降解亚甲基蓝(英文)  

Degradation of methylene blue with H_2O_2 over a cupric oxide nanosheet catalyst

作　　者：朱脉勇[1,2] 孟德海[1] 王程姣 狄健 刁国旺[1] 

机构地区：[1]扬州大学化学化工学院,江苏扬州225002 [2]江苏大学材料科学与工程学院,江苏镇江212013

出　　处：《催化学报》2013年第11期2125-2129,共5页

基　　金：supported by the National Natural Science Foundation of China (20973151, 21273195);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54.0 kJ/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.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 degrada- tion of methylene blue with H2 O2.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.

关 键 词：氧化铜 纳米片 亚甲基蓝 氧化降解 

分 类 号：X703[环境科学与工程—环境工程] O643.32[理学—物理化学]