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铈离子光催化降解茜素绿的性能和机理

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钟恒, 曹文彪, 熊重铎, 夏东升, 曾庆福, 徐爱华. 铈离子光催化降解茜素绿的性能和机理[J]. 环境工程学报, 2014, 8(2): 448-452.
引用本文: 钟恒, 曹文彪, 熊重铎, 夏东升, 曾庆福, 徐爱华. 铈离子光催化降解茜素绿的性能和机理[J]. 环境工程学报, 2014, 8(2): 448-452.
shu
Zhong Heng, Cao Wenbiao, Xiong Zhongduo, Xia Dongsheng, Zeng Qingfu, Xu Aihua. Activity and mechanism of photocatalytic degradation of Alizarin Green by cerium ions[J]. Chinese Journal of Environmental Engineering, 2014, 8(2): 448-452.
Citation: Zhong Heng, Cao Wenbiao, Xiong Zhongduo, Xia Dongsheng, Zeng Qingfu, Xu Aihua. Activity and mechanism of photocatalytic degradation of Alizarin Green by cerium ions[J]. Chinese Journal of Environmental Engineering, 2014, 8(2): 448-452.
shu

铈离子光催化降解茜素绿的性能和机理

  • 1.

    武汉纺织大学环境工程学院, 武汉 430200

  • 基金项目:

    国家自然科学基金资助项目（50978208）

  • 中图分类号: X703.1

Activity and mechanism of photocatalytic degradation of Alizarin Green by cerium ions

  • 1.

    School of Environmental Engineering, Wuhan Textile University, Wuhan 430200, China

  • Fund Project:

  • 摘要: 主要研究了简单铈离子（Ce3+）在紫外光（UV）的作用下对蒽醌染料茜素绿（AG）的光催化降解效果和反应机理。结果表明，UV/Ce3+体系能够有效降解AG，初始反应速率随AG浓度的倒数值和Ce3+浓度的增加而线性增加，随初始溶液pH的增加先降低后增加，在酸性条件下有很高的TOC去除率。荧光探针实验表明，反应过程中可以产生·OH自由基。UV/Ce3+体系对其他类型染料和对硝基苯酚都有较好的降解效果。
    Abstract: The effect and mechanism of anthraquinone dye alizarin green (AG) degradation by Ce3+ ions under UV irradiation were studied. It was found that the dye could be degraded efficiently by the UV/Ce3+ system. The initial reaction rate increased linearly with the increasing of the inverse value of AG concentration and Ce3+ concentration, respectively; while with the initial pH of the solution increasing, it first decreased dramatically and then increased slowly. A high TOC removal rate was obtained under acid conditions. The fluorescent experiments showed that ·OH radicals was produced during AG degradation. The UV/Ce3+ system was also efficient for degradation of other organic dyes and p-nitrophenol.
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  • 收稿日期:  2013-03-03
  • 刊出日期:  2014-01-27
钟恒, 曹文彪, 熊重铎, 夏东升, 曾庆福, 徐爱华. 铈离子光催化降解茜素绿的性能和机理[J]. 环境工程学报, 2014, 8(2): 448-452.
引用本文: 钟恒, 曹文彪, 熊重铎, 夏东升, 曾庆福, 徐爱华. 铈离子光催化降解茜素绿的性能和机理[J]. 环境工程学报, 2014, 8(2): 448-452.
shu
Zhong Heng, Cao Wenbiao, Xiong Zhongduo, Xia Dongsheng, Zeng Qingfu, Xu Aihua. Activity and mechanism of photocatalytic degradation of Alizarin Green by cerium ions[J]. Chinese Journal of Environmental Engineering, 2014, 8(2): 448-452.
Citation: Zhong Heng, Cao Wenbiao, Xiong Zhongduo, Xia Dongsheng, Zeng Qingfu, Xu Aihua. Activity and mechanism of photocatalytic degradation of Alizarin Green by cerium ions[J]. Chinese Journal of Environmental Engineering, 2014, 8(2): 448-452.
shu

铈离子光催化降解茜素绿的性能和机理

  • 1. 武汉纺织大学环境工程学院, 武汉 430200
  • 收稿日期:  2013-03-03
基金项目:

国家自然科学基金资助项目（50978208）

摘要: 主要研究了简单铈离子（Ce3+）在紫外光（UV）的作用下对蒽醌染料茜素绿（AG）的光催化降解效果和反应机理。结果表明，UV/Ce3+体系能够有效降解AG，初始反应速率随AG浓度的倒数值和Ce3+浓度的增加而线性增加，随初始溶液pH的增加先降低后增加，在酸性条件下有很高的TOC去除率。荧光探针实验表明，反应过程中可以产生·OH自由基。UV/Ce3+体系对其他类型染料和对硝基苯酚都有较好的降解效果。

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