| 微等离子体氧化法在TiO2膜的光催化活性研究 |
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| 引用本文： | 张瑞,李宣东,吴晓宏.微等离子体氧化法在TiO2膜的光催化活性研究[J].哈尔滨商业大学学报(自然科学版),2003,19(3). |
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| 作者姓名： | 张瑞 李宣东 吴晓宏 |
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| 作者单位： | 大庆勘探开发研究院，哈尔滨工业大学应用化学系，哈尔滨工业大学应用化学系 黑龙江大庆163001，黑龙江哈尔滨，150001，黑龙江哈尔滨，150001 |
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| 摘 要： | 在不同的电流密度下 (5 ,1 0 ,1 5A/dm2 ) ,微等离子体氧化法在钛基体上产生了多孔的二氧化钛陶瓷膜 .所得膜层被用于降解若丹明B ,有一定的光催化活性 ,而且 1 0A/dm2 时所得膜层有较高的光催化活性 ,2h去除率达 90 % .经XRD和SEM分析膜层的表面形貌和结构 ,发现膜层的微孔尺寸和锐钛矿型二氧化钛的含量随着电流密度增加而增加 .1 0A/dm2 时所得膜高的催化活性归功于较大的比表面积及较高的锐钛矿型二氧化钛的结晶量
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| 关 键 词： | 微等离子体氧化 二氧化钛膜 光催化活性 若丹明B |
Study on photo-catalytic activity of titanium dioxide thin films prepared by micro-plasma oxidation method |
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| ZHANG Rui ,LI Xuan dong ,WU Xiao hong.Study on photo-catalytic activity of titanium dioxide thin films prepared by micro-plasma oxidation method[J].Journal of Harbin University of Commerce :Natural Sciences Edition,2003,19(3). |
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| Authors: | ZHANG Rui LI Xuan dong WU Xiao hong |
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| Institution: | ZHANG Rui 1,LI Xuan dong 2,WU Xiao hong 2 |
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| Abstract: | Microporous titanium dioxide thin films have been fabricated on titanium plates by the micro-plasma oxidation method with different current density (5,10 and 15A/dm 2) X-ray diffraction, scanning electronic microscopy and UV-Vis spectrophotometry were used to characterize the films The results indicated that the number and size of micropores and the crystallinity of the anatase and rutile TiO 2 phases have increased with the current density Degradation of rhodamine B dye was used to test the photo-catalytic activity of the films Obtained the relatively better degradation efficiency compared with Rhodamine B mineralization, and the sample produced with a current density of 10 A/dm 2 This behavior is ascribed to the larger specific surface area and the higher crystallinity of anatase TiO 2 |
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| Keywords: | micro-plasma oxidation TiO 2 film photo-catalytic activity rhodamine B |
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