| TiO2光催化氧化降解偶氮染料 |
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| 引用本文： | 程天行,柯强.TiO2光催化氧化降解偶氮染料[J].温州大学学报(社会科学版),2008(4):19-24. |
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| 作者姓名： | 程天行 柯强 |
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| 作者单位： | 温州大学生命与环境科学学院,浙江温州325035 |
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| 基金项目： | 温州大学校级科研项目（2006L015） |
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| 摘 要： | 研究了催化剂、光源、溶液初始浓度、溶液初始pH值等因素对甲基橙光催化氧化降解反应的影响．实验结果表明，最佳实验条件为：以灼烧的TiO2为催化剂，催化剂的投加量为0,8g·L^-1，采用浸波式紫外灯作光源，甲基橙初始浓度为20mg·L^-1，溶液初始pH=3．该实验条件下，甲基橙一小时脱色率可达81．3％．该研究可为偶氮染料降解提供新的思路．
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| 关 键 词： | 甲基橙 光催化氧化降解 二氧化钛 偶氮染料 |
Photocatalytic Oxidation of Azo Dyes by TiO2 |
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| CHENG Tianxing,KE Qiang.Photocatalytic Oxidation of Azo Dyes by TiO2[J].Journal of Wenzhou University Natural Science,2008(4):19-24. |
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| Authors: | CHENG Tianxing KE Qiang |
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| Institution: | (College of Life and Environmental Science, Wenzhou University, Wenzhou, China 325035) |
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| Abstract: | Factors which effect the photocatalytic oxidation reaction of methyl orange, including catalysts, light sources, initial concentration of methyl orange and initial solution pH values were studied. Conclusions finally drawn from experiments were that the best catalyst was burned TiO2 with the dose of 0.8g·L^-1 and the best conditions for degradation were with initial concentration of dye of 20mg·L^-1 and the initial solution pH 3 in the submerged UV lamps. Under the experiments conditions, decolorization rate of methyl orange per hour equaled to 81.3%. Then new ideas were provided for the azo dye degradation. |
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| Keywords: | Methyl orange Photocatalytic degradation TiO2 Azo dyes |
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