| TiO2膜光电催化氧化法降解印染废水的研究 |
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| 引用本文： | 赵立杰,于海霞,翟明翚,李淑华,赵桦萍,汪建新,杨万丽.TiO2膜光电催化氧化法降解印染废水的研究[J].化工时刊,2012,26(3):14-17. |
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| 作者姓名： | 赵立杰 于海霞 翟明翚 李淑华 赵桦萍 汪建新 杨万丽 |
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| 作者单位： | 齐齐哈尔大学化学与化学工程学院,黑龙江齐齐哈尔,161006 |
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| 基金项目： | 黑龙江省自然科学基金资助项目(No.B201106);黑龙江省教育厅科学技术项目(No.11541396和No.12511592) |
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| 摘 要： | 采用TiO2膜电极,利用电化学和光催化协同作用对印染废水进行了降解,讨论了协同作用的机理。考察了电流密度、溶液pH值和光照强度等因素对降解率的影响。研究结果表明：光电催化氧化法的活性蓝染料溶液降解率高于电极氧化法和光催化法,证明电化学和光催化在反应过程中具有协同作用。在电流密度20 mA/cm2、pH值为4、光照距离为8 cm的条件下,降解初始浓度100 mg/L活性蓝染料模拟印染废水,2.5 h时COD去除率为88.4%,色度脱除率为93%。
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| 关 键 词： | 光电催化 TiO2膜 降解 印染废水 |
Study on the Photoelectrocatalytic Degradationof Dyeing Waste Water with TiO2 Thin Film |
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| Zhao Lijie
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Yu Haixia
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Zhai Minghui
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Li Shuhua
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Zhao Huaping
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Wang Jianxin
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Yang Wanli.Study on the Photoelectrocatalytic Degradationof Dyeing Waste Water with TiO2 Thin Film[J].Chemical Industry Times,2012,26(3):14-17. |
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| Authors: | Zhao Lijie Yu Haixia Zhai Minghui Li Shuhua Zhao Huaping Wang Jianxin Yang Wanli |
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| Affiliation: | Zhao Lijie Yu Haixia Zhai Minghui Li Shuhua Zhao Huaping Wang Jianxin Yang Wanli(College of Chemistry and Chemical Engineering,Qiqihar University,Heilongjiang Qiqihar 161006) |
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| Abstract: | In this paper,the degradation of dyeing waste water via a synergetic effect between photocatalysis and electrolysis with TiO2 thin film was discussed.Specifically,effects of current density,initial pH values and distance of irradiation on the degradation ratio of dyeing waste water were investigated.Experimental results showed that the degradation ratio of dyeing waste water via photoelectrocatalysis was higher than those via photocatalysis or electrolysis alone,and it indicates that there was a synergetic effect between photocatalysis and electrolysis.Given the current density 20 mA/cm2,initial pH value at 4.0 and distance of irradiation 8cm,the COD removal rate was 88.4% and the decolor rate was 93% in the dyeing waste water with initial concentration 100mg/L by photoelectrocatalysis after 2.5 h irradiation. |
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| Keywords: | photoelectrocatalysis TiO2 thin film degradation dyeing waste water |
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