不同制备条件对TiO2/beads光催化活性的影响

doi:10.7517/j.issn.1674-0475.1999.01.25

影像科学与光化学 ›› 1999, Vol. 17 ›› Issue (1): 25-31.DOI: 10.7517/j.issn.1674-0475.1999.01.25

不同制备条件对TiO₂/beads光催化活性的影响

陈士夫¹, 梁新², 赵梦月²

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

收稿日期:1998-03-23 修回日期:1998-05-18 出版日期:1999-02-20 发布日期:1999-02-20
通讯作者: 陈士夫
基金资助:
安徽省自然科学基金

THE EFFECT OF THE DIFFERENT PREPARATION CONDITIONS ON THE PHOTOCATALYTIC ACTIVITY OF TiO₂/beads

CHEN Shifu¹, LIANG Xin², ZHAO Mengyue²

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

Received:1998-03-23 Revised:1998-05-18 Online:1999-02-20 Published:1999-02-20

摘要/Abstract

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.

关键词: 二氧化钛, 空心玻璃微球, 光催化活性

Abstract: The TiO₂/beads photocatalyst was prepared by the dip-coating technique using the hollow glass microbeads as a supporter and TiO₂/beads were characterized by XRD,SEM and TG-DTA. The effect of the different preparation conditions on the photocatalytic activity of TiO₂/beads was studied. The results showed that the photocatalytic activity of the TiO₂/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 TiO₂/beads was better when the anatase phase and the rutile phase coexist in a certain proportion.

Key words: titanium dioxide, hollow glass microbeads, photocatalytic activity

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.

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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不同制备条件对TiO₂/beads光催化活性的影响

THE EFFECT OF THE DIFFERENT PREPARATION CONDITIONS ON THE PHOTOCATALYTIC ACTIVITY OF TiO₂/beads

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