| Mn~(2+)掺杂对纳米TiO_2薄膜光催化活性的影响 |
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| 引用本文： | 张定国,杨焯,杨福来. Mn~(2+)掺杂对纳米TiO_2薄膜光催化活性的影响[J]. 吉林化工学院学报, 2006, 23(2): 7-9 |
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| 作者姓名： | 张定国 杨焯 杨福来 |
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| 作者单位： | 东华理工学院,应用化学系,江西,抚州,344000 |
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| 摘 要： | 采用溶胶-凝胶法制备Mn2+掺杂的TiO2薄膜光催化剂,进行甲醛的光催化实验,考察Mn2+掺杂量、薄膜焙烧温度、溶胶体系pH值及薄膜厚度对光催化性能的影响.结果表明,Mn2+掺杂量为1.0%,焙烧温度500℃1 h,加硝酸溶胶体系pH=4,镀膜5层时,Mn2+掺杂TiO2薄膜光催化活性最高.150 min后甲醛降解率达79%,是单纯TiO2薄膜的1.4倍.
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| 关 键 词： | 掺杂Mn2+ TiO2薄膜 溶胶凝胶法 甲醛 光催化降解 |
| 文章编号： | 1007-2853（2006）02-0007-03 |
| 收稿时间： | 2006-01-04 |
| 修稿时间： | 2006-01-04 |
Effect of Mn2+ doping photocatalytic activity of nano-sized TiO2 thin films |
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| ZHANG Ding-guo,YANG Chuo,YANG Fu-lai. Effect of Mn2+ doping photocatalytic activity of nano-sized TiO2 thin films[J]. Journal of Jilin Institute of Chemical Technology, 2006, 23(2): 7-9 |
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| Authors: | ZHANG Ding-guo YANG Chuo YANG Fu-lai |
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| Affiliation: | Dept. of Applied Chemistry, East China Institute of Technology, Jiangxi, Fuzhou 344000, China |
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| Abstract: | The porous Mn~(2+)-doping TiO_2 thin films are prepared by a sol-gel technique on glass sheet.Experiments on photocatalytic degradation of HCHO are carried out.The effects of the amount of Mn~(2+)-doping,calcinations temperature,pH value of the system and the thickness of films on photocatalytic degradation are studied.Results show that high photocatalytic reactivity of nanometer Mn~(2+)-doping TiO_2 thin films can be available when Mn~(2+)-doping content of 1.0%,calcinations for 1?h at 500?℃,pH=4 and of 5 coating cycle of the system.After 150min,the degradation percentage of formaldehyde is 79%,which is 1.4 times as that of TiO_2 films. |
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| Keywords: | Mn~(2 )-doping TiO_2 thin film sol-gel method formaldehyde photocatalytic degradation |
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