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制备工艺对La改性湿式氧化催化剂活性和稳定性的影响

张永利 韦朝海 王庆雨 尚玲玲

张永利, 韦朝海, 王庆雨, 尚玲玲. 制备工艺对La改性湿式氧化催化剂活性和稳定性的影响[J]. 环境科学研究, 2014, 27(2): 210-217.
引用本文: 张永利, 韦朝海, 王庆雨, 尚玲玲. 制备工艺对La改性湿式氧化催化剂活性和稳定性的影响[J]. 环境科学研究, 2014, 27(2): 210-217.
ZHANG Yong-li, WEI Chao-hai, WANG Qing-yu, SHANG Ling-ling. Influence of Preparation Conditions on Activity and Stability of CWAO Catalyst Cu-Fe-LaFSC Modified by La[J]. Research of Environmental Sciences, 2014, 27(2): 210-217.
Citation: ZHANG Yong-li, WEI Chao-hai, WANG Qing-yu, SHANG Ling-ling. Influence of Preparation Conditions on Activity and Stability of CWAO Catalyst Cu-Fe-LaFSC Modified by La[J]. Research of Environmental Sciences, 2014, 27(2): 210-217.

制备工艺对La改性湿式氧化催化剂活性和稳定性的影响

基金项目: 广东省高等学校人才引进专项资金(2011116); 广东省重大科技专项(2009A080303007); 潮州市科技计划项目(2008S20)

Influence of Preparation Conditions on Activity and Stability of CWAO Catalyst Cu-Fe-LaFSC Modified by La

  • 摘要: 采用CWAO(催化湿式空气氧化)法处理甲基橙模拟印染废水,以过量浸渍法制备催化剂,以水样CODCr去除率和脱色率表征催化剂的活性,以催化剂使用后处理出水中溶出的金属离子质量浓度表征催化剂的稳定性. 结果表明,多组分催化剂的金属组分构成为Cu、Fe、La,m(Cu)∶m(Fe)∶m(La)为1∶1∶2, 35℃下动态共浸渍8h,450℃下焙烧3h,由此制备得到Cu-Fe-La/FSC催化剂. 应用该催化剂,以CWAO法处理模拟印染废水,废水CODCr去除率和脱色率可分别达到79.1%和98.9%,催化剂的活性较高;使用该催化剂处理后的废水中Cu、Fe、La、Al的溶出量(以ρ计)分别为6.1、2.4、2.2、3.2mg/L,说明金属元素的溶出量较低,催化剂的稳定性较高.

     

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出版历程
  • 收稿日期:  2013-04-22
  • 修回日期:  2013-08-05
  • 刊出日期:  2014-02-25

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