| 复合半导体光催化降解糖蜜废水研究 |
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| 引用本文： | 陈建华,赵翠华,张波萍.复合半导体光催化降解糖蜜废水研究[J].工业催化,2007,15(11):50-53. |
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| 作者姓名： | 陈建华 赵翠华 张波萍 |
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| 作者单位： | 1.广西大学资源与环境学院，广西 南宁 530004;;2.北京科技大学材料科学与工程学院，北京 100083 |
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| 摘 要： | 以溶胶－凝胶法制备了TiO2和TiO2复合半导体粉末，并将之用于糖蜜废水的光催化处理。通过实验考察了催化剂用量、糖蜜废水的浓度、光催化反应时间以及复合半导体对于糖蜜废水脱色率的影响。结果表明，用复合半导体降解糖蜜废水具有理想的处理效果。催化剂最佳用量为（2.7～4.0） g·L－1，随着反应时间的进行，糖蜜废水脱色率开始时显著增加，后渐趋于平衡。 各种复合半导体中，5%SnO2/TiO2光催化处理糖蜜废水的效果最佳，原水样稀释20倍后，反应120 min的脱色率可达61.75％。
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| 关 键 词： | 糖蜜废水 复合半导体 光催化 降解 |
| 文章编号： | 1008-1143（2007）11-0050-04 |
| 收稿时间： | 2007-05-22 |
| 修稿时间： | 2007-09-04 |
Photocatalytic degradation of wastewater from fermented molasses by compound semiconductor |
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| CHEN JIanhua,ZHAO Cuihua,ZHANG Boping.Photocatalytic degradation of wastewater from fermented molasses by compound semiconductor[J].Industrial Catalysis,2007,15(11):50-53. |
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| Authors: | CHEN JIanhua ZHAO Cuihua ZHANG Boping |
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| Affiliation: | 1.School of Resources and Environment, Guangxi University, Nanning 530004,Guangxi，China; 〖JP4〗2.School of Material Science and Engineering, Beijing University of Science and Technology, Beijing 100083, China |
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| Abstract: | Titania and titania-doped semiconductor powder were prepared by sol-gel method and used as the photocatalyst for degradation of wastewater from fermented molasses.The effects of photocatalyst dosage,the concentration of wastewater,reaction time and types of the semiconductor on the decoloration efficiency were investigated. |
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| Keywords: | molasses wastewater compound semiconductor photocatalyst degradation |
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