| 改性TiO2膜的制备及其光催化降解染料的研究 |
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| 引用本文： | 郑柳萍,叶金花,郑彦,王琼生.改性TiO2膜的制备及其光催化降解染料的研究[J].福建师范大学学报(自然科学版),2007,23(1):61-64,77. |
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| 作者姓名： | 郑柳萍 叶金花 郑彦 王琼生 |
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| 作者单位： | 福建师范大学化学与材料学院,福建,福州,350007 |
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| 基金项目： | 福建省自然科学基金
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福建省教育厅科研项目 |
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| 摘 要： | 选用铝片为载体,以溶胶-凝胶法制得掺杂Ag的改性二氧化钛溶胶,采用拉膜法制得TiO2膜.用XRD、FT-IR对膜片的理化性能进行初步表征,并分别以甲基橙和亚甲基蓝作为目标降解物,考察了膜片在紫外光和可见光下的光催化活性.初步研究结果表明,Ag改性TiO2膜对染料表现出良好的光催化活性,当添加量为0.08 mol/L时,在254 nm的紫外光下对甲基橙的脱色率可达71%,在可见光下对亚甲基蓝的脱色率可达98%.
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| 关 键 词： | 溶胶-凝胶法 改性 TiO2 光催化 降解 |
| 文章编号： | 1000-5277（2007）01-0061-04 |
| 修稿时间： | 2005-10-19 |
Preparation of Doped TiO2 Film and Study on Photocatalytic Degradation of Dyes |
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| ZHENG Liu-ping,YE Jin-hua,ZHENG Yan,WANG Qiong-sheng.Preparation of Doped TiO2 Film and Study on Photocatalytic Degradation of Dyes[J].Journal of Fujian Teachers University(Natural Science),2007,23(1):61-64,77. |
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| Authors: | ZHENG Liu-ping YE Jin-hua ZHENG Yan WANG Qiong-sheng |
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| Institution: | College of Chemistry and Materials Science, Fujian Normal University, Fuzhou 350007, China |
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| Abstract: | The Ag-TiO_2 thin films prepared by sol-gel method on aluminium surface were produced by drawing the membrane method.The samples were characterized by means of XRD and FT-IR.The photodegradation activities of methyl orange(MO) and methylene blue(MB) solution were investigated under UV(254 nm) and visible light irradiation respectively,using the doped films as catalysts.The influence of the addition amount of AgNO_3 was also studied.The primary results indicated that Ag-TiO_2 films had good photocatalytic activity to the decoloration rate of dyes.When adding 0.08 mol/L AgNO_3 into TiO_2 solution,the decomposition percentage of MO and MB went up to 71% and 98%. |
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| Keywords: | sol-gel doped TiO_2 photocatalysis degradation |
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