| 甲基橙溶液多相光催化降解研究 |
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| 引用本文： | 王怡中,符雁,汤鸿霄.甲基橙溶液多相光催化降解研究[J].环境科学,1998(1):1-4. |
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| 作者姓名： | 王怡中 符雁 汤鸿霄 |
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| 作者单位： | 中国科学院生态环境研究中心环境水化学国家重点实验室 |
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| 摘 要： | 利用中压汞灯作为光源，在ＴｉＯ２粉末悬浆体系内，以甲基橙溶液光降解脱色速率为例，探讨间歇式电光源圆柱形光化学反应器的运行情况及影响因素．分别考察了使用３００Ｗ和５００Ｗ中压汞灯、石英和玻璃冷阱、甲基橙溶液温度在２０℃或５０℃、不同ＴｉＯ２催化剂以及不同催化剂投加量对甲基橙溶液脱色速率的影响．从而得出在现有电光源圆柱形反应器的最佳运行条件下，２０ｍｇ／Ｌ的甲基橙溶液光照１０ｍｉｎ，脱色率达９７．４％．
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| 关 键 词： | 二氧化钛，光催化氧化，甲基橙溶液，降解脱色 |
| 收稿时间： | 6/4/1997 12:00:00 AM |
Photocatalytic Degradation of Methyl Orange in TiO2 Suspension |
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| Wang Yizhong,Fu Yuan and Tang Hongxiao.Photocatalytic Degradation of Methyl Orange in TiO2 Suspension[J].Chinese Journal of Environmental Science,1998(1):1-4. |
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| Authors: | Wang Yizhong Fu Yuan and Tang Hongxiao |
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| Affiliation: | State Key Laboratory of Environmental Aquatic Chemistry, Research Centre for Eco-Environmental Sciences, Chinese Academy of Sciences, Beijing 100085;State Key Laboratory of Environmental Aquatic Chemistry, Research Centre for Eco-Environmental Sciences, Chinese Academy of Sciences, Beijing 100085;State Key Laboratory of Environmental Aquatic Chemistry, Research Centre for Eco-Environmental Sciences, Chinese Academy of Sciences, Beijing 100085 |
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| Abstract: | The photocatalytic decolorization of methyl orange in TiO2 suspension irradiated by middle pressure mercury lamp was investigated with the typical bench annular photoreactor.The effects of different power of lamp,quartz and glass cooling wall,solution temperature,different types of TiO2 catalyst and catalyst amount on the decolorization of methyl orange were investigated in detail.The results showed that 500 W Hg lamp,quartz cooling wall,Dugess P-25 TiO2,1.0mg/L catalyst amount are the best operating conditions in the experiment.When the initial concentration of methyl orange was 20mg/L,after 10 min the solution colore removal achieved 97.4%. |
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| Keywords: | photocatalytic oxidation TiO2 methyl orange decoloridation |
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