Ag/TiO2聚丙烯负载膜的制备及其光催化与抗菌特性研究

doi:10.7517/j.issn.1674-0475.2005.05.382

影像科学与光化学 ›› 2005, Vol. 23 ›› Issue (5): 382-388.DOI: 10.7517/j.issn.1674-0475.2005.05.382

Ag/TiO₂聚丙烯负载膜的制备及其光催化与抗菌特性研究

汤斌, 张庆庆, 薛正莲, 陶玉贵, 黄晓东

安徽工程科技学院, 生化工程系, 安徽, 芜湖, 241000

收稿日期:2005-04-05 修回日期:2005-05-27 出版日期:2005-09-23 发布日期:2005-09-23
通讯作者: 汤斌, 教授, 主要研究领域为光化学与光生物学.
基金资助:
国家自然科学基金资助项目(20276001);安徽省高校自然科学基金重点资助项目(2002kj69zd).

The Preparation of Ag/TiO₂ Polypropylene Membrane and Its Photocatalytic and Antibacterial Property

TANG Bin, ZHANG Qing-qing, XUE Zheng-lian, TAO Yu-gui, HUANG Xiao-dong

Department of Biochemical Engineering, Anhui University of Science and Technology Wuhu 241000, Anhui, P.R. China

Received:2005-04-05 Revised:2005-05-27 Online:2005-09-23 Published:2005-09-23

摘要/Abstract

摘要： 以聚丙烯负载二氧化钛膜为载体,在一定浓度的AgNO₃水溶液中,利用光还原在氧化钛膜表面还原Ag,制备载银二氧化钛负载膜,在室光和太阳光下,分别选择Ag/TiO₂聚丙烯膜、TiO₂聚丙烯膜和活性炭聚丙烯膜,研究膜的抗菌特性和光催化特性.结果表明:Ag/TiO₂负载膜由于同时具有Ag和TiO₂的双重效用,显示了良好的杀菌特性,无论是在室内还是太阳光下,都没有检测到活的微生物;在水溶液中检测Ag/TiO₂负载膜和TiO₂负载膜的光催化特性,发现由于银离子的催化活性中心的作用,光催化降解甲基橙的能力与TiO₂负载膜相比,能够提高10%左右,显示了良好的光化学特性.

关键词: Ag/TiO₂负载膜, 光还原, 抗菌, 光催化

Abstract: Ag/TiO₂ loaded membrane was prepared with TiO₂ loaded polypropylene membrane as its carrier. Photo-reduction technology was used to reduce silver in AgNO₃ water solution of a certain concentration. The antibacterial and photocatalytic specificity of Ag/TiO₂ polypropylene membrane, TiO₂ polypropylene membrane and active carbon polypropylene membrane was studied under room light and sunlight. The result showed that Ag/TiO₂ loaded membrane exhibited good antibacterial property,because it had the activity of both the Ag and TiO₂. No matter when it was under room light or under sunlight, there were no live microbes examined. By examining the photocatalytic specificity of Ag/TiO₂ and TiO₂ loaded membrane, it was found that the ability of Ag/TiO₂ loaded membrane to photocatalyze methyl orange had been increased by 10% compared with that of TiO₂ loaded membrane which showed that Ag/TiO₂ membrane had good photocatalytic specificity.

Key words: Ag/TiO₂ polypropylene membrane, photo-reduce, antibacterial, photocatalytic property

中图分类号:

汤斌, 张庆庆, 薛正莲, 陶玉贵, 黄晓东. Ag/TiO₂聚丙烯负载膜的制备及其光催化与抗菌特性研究[J]. 影像科学与光化学, 2005, 23(5): 382-388.

TANG Bin, ZHANG Qing-qing, XUE Zheng-lian, TAO Yu-gui, HUANG Xiao-dong. The Preparation of Ag/TiO₂ Polypropylene Membrane and Its Photocatalytic and Antibacterial Property[J]. Imaging Science and Photochemistry, 2005, 23(5): 382-388.

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Ag/TiO₂聚丙烯负载膜的制备及其光催化与抗菌特性研究

The Preparation of Ag/TiO₂ Polypropylene Membrane and Its Photocatalytic and Antibacterial Property

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