期刊
TALANTA
卷 79, 期 3, 页码 570-575出版社
ELSEVIER SCIENCE BV
DOI: 10.1016/j.talanta.2009.04.036
关键词
Ag/TiO2-nanotubes; Photocatalytic degradation; Rhodamine dyes; organochlorine pesticides
资金
- Science and Technology Project of Hebei Province [07246751D]
- National Nature Scientific Foundations of China [20775064, 20735002]
- New Century Excellent Talents in University of China (NCET)
TiO2- and Ag/TiO2-nanotubes (NTs) were synthesized by hydrothermal methods and microwave-assisted preparation, respectively. Scanning electron microscopy, high resolution transmission electron microscopy, Brunauer-Emmett-Teller particle surface area measurement and X-ray diffraction were used to characterize the nanotubes. Rutile TiO2-NTs with Na2Ti5O11 crystallinity had a length range of 200-400nm and diameters of 10-20nm. TiO2- and Ag/TiO2-NTs with a 0.4% deposition of Ag had high surface areas of 270 and 169 m(2) g(-1), respectively. The evaluation of photocatalytic activity showed that Ag/TiO2-NTs displayed higher photocatalytic activity than pure TiO2-NTs and a 60.91% degradation of Rhodamine-B with 0.8% deposition of Ag species. Also 60% of Rhodamine-6G was physisorbed and 40% chemisorbed on the surface of TiO2-NTs. In addition, the photocatalytic degradations of organochlorine pesticides taking alpha-hexachlorobenzene (BHC) and dicofol as typical examples, were compared using Ag/TiO2-NTs, and found that their degradations rates were all higher than those obtained from commercial TiO2. (C) 2009 Elsevier B.V. All rights reserved.
作者
我是这篇论文的作者
点击您的名字以认领此论文并将其添加到您的个人资料中。
推荐
暂无数据