| 水溶性染料在PbTiO3体系中的光催化降解 |
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| 引用本文： | 王俊珍,古凤才,颜秀茹,王建苹,曾淑兰.水溶性染料在PbTiO3体系中的光催化降解[J].应用化学,1995,0(6):29-32. |
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| 作者姓名： | 王俊珍 古凤才 颜秀茹 王建苹 曾淑兰 |
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| 作者单位： | 天津大学化学系, 天津 300072 |
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| 基金项目： | 国家自然科学基金及天津市21世纪青年科学基金资助项目 |
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| 摘 要： | 以PbTiO3为光催化剂,对多种水溶性染料的光催化降解反应进行了研究,结果表明：光降解脱色效率与染料溶液的pH值、光照时间、光源种类及催化剂用量等因素有关.染料溶液浓度为10mg/L,pH=6,催化剂用量为100mg/50mL,直接以太阳光作光源,光照1h以后,脱色率达90%以上,有机染料中硫和氮元素转化为SO42-和NO3-的生成率分别为85%和65%.
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| 关 键 词： | 水溶性染料 光催化降解 PbTiO3 能带隙 |
| 收稿时间： | 1995-02-06 |
| 修稿时间： | 1995-07-22 |
Photodegtgradation of Water-Soluble Dyes in PbTiO_3 System |
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| Wang Junzhen, Gu Fengcai, Yan Xiuru, Wang Jianping, Zeng Shulan.Photodegtgradation of Water-Soluble Dyes in PbTiO_3 System[J].Chinese Journal of Applied Chemistry,1995,0(6):29-32. |
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| Authors: | Wang Junzhen Gu Fengcai Yan Xiuru Wang Jianping Zeng Shulan |
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| Institution: | Department of Chemistry, Tianjin University, Tianjin 300072 |
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| Abstract: | The photocatalytic destruction and decolorization of several water-soluble dyesunder natural sun light and 450W high pressure Hg-lamp irradiation in the presence of photo-catalyst PbTiO_3 were studied.The experiments show that the efficiency of decolorization isrelated to the pH value of dye solution,irradiation time,as well as the intensity of irradia-tion. After irradiation with sun light for 1h,the decolorizing efficiency was up to 90% whenthe concentration of dyes was 10mg/L and the amount of catalyst was 100mg in 50mL dyesolution. |
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| Keywords: | water-soluble dye photocatalytic destruction PbTiO_3 band gap |
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