| 不同制备条件对TiO2/beads光催化活性的影响 |
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| 引用本文： | 陈士夫,梁新,赵梦月.不同制备条件对TiO2/beads光催化活性的影响[J].影像科学与光化学,1999,17(1):25-31. |
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| 作者姓名： | 陈士夫 梁新 赵梦月 |
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| 作者单位： | 1. 淮北煤炭师范学院化学系, 淮北235000;2. 郑州工业大学化工系, 郑州450002 |
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| 摘 要： | 以空心玻璃微球为载体,采用浸涂法制备TiO2/beads光催化剂;利用X射线衍射、扫描电镜、热分析对TiO2/beads进行了表征。研究了不同制备条件对TiO2/beads光催化活性的影响。结果表明,热处理600℃,5h,A/R为81/19时,TiO2/beads光催化活性最高;样品由非晶向锐钛矿型转变的温度为429℃,当锐钛矿型TiO2与金红石型TiO2以一定的比例共存时,TiO2/beads的光催化活性较好.
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| 关 键 词： | 二氧化钛 空心玻璃微球 光催化活性 |
| 收稿时间： | 1998-03-23 |
THE EFFECT OF THE DIFFERENT PREPARATION CONDITIONS ON THE PHOTOCATALYTIC ACTIVITY OF TiO2/beads |
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| CHEN Shifu,LIANG Xin,ZHAO Mengyue.THE EFFECT OF THE DIFFERENT PREPARATION CONDITIONS ON THE PHOTOCATALYTIC ACTIVITY OF TiO2/beads[J].Imaging Science and Photochemistry,1999,17(1):25-31. |
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| Authors: | CHEN Shifu LIANG Xin ZHAO Mengyue |
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| Institution: | 1. Department of Chemistry, Huaibei Coal Teachers College, Huaibei 235000, P. R. China;2. Department of Chemical Engineering, Zhengzhou University of Technology, Zhengzhou 450002, P. R. China |
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| Abstract: | The TiO 2/beads photocatalyst was prepared by the dip coating technique using the hollow glass microbeads as a supporter and TiO 2/beads were characterized by XRD,SEM and TG DTA. The effect of the different preparation conditions on the photocatalytic activity of TiO 2/beads was studied. The results showed that the photocatalytic activity of the TiO 2/beads was the highest when heat treatment at 600℃ for 5 h and the anatase phase and the rutile phase equal to 81to19.The transition temperature of samples from amorphous structure to the anatase phase was about 429℃. The photocatalytic activity of the TiO 2/beads was better when the anatase phase and the rutile phase coexist in a certain proportion. |
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| Keywords: | titanium dioxide hollow glass microbeads photocatalytic activity |
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