| SO42-改性TiO2催化降解茜素红水溶液 |
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| 引用本文： | 王知彩,李小君,王平.SO42-改性TiO2催化降解茜素红水溶液[J].中国环境科学,2003,23(5):535-538. |
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| 作者姓名： | 王知彩 李小君 王平 |
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| 作者单位： | 1. 安徽工业大学化工与环境学院,安徽,马鞍山,243002
2. 湘潭钢铁集团有限公司科技开发中心,湖南,湘潭,411100 |
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| 基金项目： | 安徽省教育厅自然科学基金资助项目(2003kj051) |
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| 摘 要： | 基于SO42-对TiO2超强酸化改性制备了SO42-/TiO2催化剂,以茜素红为目标物试验研究了该催化剂的催化降解性能,并考察了降解条件等因素对脱色率的影响.结果表明,SO42-/TiO2具有较强催化降解性能及一定的光催化活性,降解过程中SO42-流失是催化剂失活的主要原因.在pH=7,催化剂加入量为2.5g/L,起始浓度为140mg/L,太阳光等优化工艺条件下降解效果最好,脱色率达到92%.
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| 关 键 词： | SO42-/TiO2 催化 降解 改性 茜素红溶液 |
| 文章编号： | 1000-6923(2003)05-0535-04 |
| 修稿时间： | 2003年4月29日 |
SO2-4 modified TiO2 catalytic degradation of alizarin red aqueous solution |
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| WANG Zhi-cai,LI Xiao-jun,WANG Ping.SO2-4 modified TiO2 catalytic degradation of alizarin red aqueous solution[J].China Environmental Science,2003,23(5):535-538. |
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| Authors: | WANG Zhi-cai LI Xiao-jun WANG Ping |
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| Institution: | WANG Zhi-cai1,LI Xiao-jun2,WANG Ping1 |
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| Abstract: | The catalyst of SO42-/TiO2 was prepared with SO42- superacidification modifying. Properties of catalytic degradation were investigated by alizarin used as objective compound, and the influence of the factors enchase degradation conditions on the decolorization rate were explored. The results showed that SO42-/TiO2 had better catalytic degradation activity and definite photocatalytic activity. In degradation process, lose of SO42- was the main cause of deactivation of the catalyst. The decolouration rate reached the best effect of 92% on the superior technical conditions (pH=7, original concentration 140mg/L and 2.5g/L catalyst added and sun light). |
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| Keywords: | SO42-/TiO2 catalysis degradation modified alizarin red aqueous solution |
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