高等学校化学学报

高等学校化学学报

• 研究论文 • 上一篇    下一篇

CuO-MnO2/Al2O3催化臭氧化催化剂的制备、结构表征及性能

李欣, 边疆, 朱学多, 强亮生   

  1. 哈尔滨工业大学应用化学系, 哈尔滨 150090
  • 收稿日期:2006-09-12 修回日期:1900-01-01 出版日期:2007-06-10 发布日期:2007-06-10
  • 通讯作者: 李欣

Preparation, Structural Characterization and Catalyst Activity of CuO-MnO2/Al2O3 Catalysts

LI Xin*, BIAN Jiang, ZHU Xue-Duo, QIANG Liang-Sheng   

  1. Department of Applied Chemistry, Harbin Institute of Technology, Harbin 150090, China
  • Received:2006-09-12 Revised:1900-01-01 Online:2007-06-10 Published:2007-06-10
  • Contact: LI Xin

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摘要： 采用浸渍法, 以Al2O3为载体制备了氧化铜和二氧化锰复合的双组分负载型金属催化臭氧化催化剂. 以松花江水的UV254去除率作为催化剂活性指标, 通过正交试验, 确定了催化剂的最佳制备条件. 实验结果表明, 催化剂的最佳制备条件如下: 浸渍5 h, 活性组元体积比为3∶1, 于90 ℃干燥2 h, 于200 ℃焙烧3 h. 采用扫描电镜对催化剂的结构进行了表征; 通过TG-DTA测试分析了催化剂热分解过程的反应速率、热效应和物质变化过程; 运用XPS分析了催化剂表面元素的组成、元素相对含量和元素价态.

关键词: 催化臭氧化, 氧化铜, 二氧化锰, 催化剂

Abstract: Al2O3 supported CuO-MnO2 catalysts were prepared via immersion method, and their structures were characterized with SEM and XPS techniques. The effect of the preparation methods and conditions on the catalytic activities were studied and the best reaction conditions was obtained. The results show that the catalysts of CuO-MnO2/Al2O3 have very high catalytic activity, when the immersion time is 5 h, the molar ratio of Cu(NO3)2 to Mn(NO3)2 is 3∶1, and the catalyst was dried at 70 ℃ for 2 h and roasted at 200 ℃ for 3 h.

Key words: Catalytic ozonation, CuO, MnO2, Catalyst

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