期刊
JOURNAL OF HAZARDOUS MATERIALS
卷 306, 期 -, 页码 133-139出版社
ELSEVIER SCIENCE BV
DOI: 10.1016/j.jhazmat.2015.12.013
关键词
Titanium dioxide nanoparticle (TiO2); Carbon (C); Sol-gel methods; Photocatalyst; Disinfection
资金
- Chonbuk National University
- USGS [2015NE269B]
- Nebraska Water Center
In this study, titanium dioxide nanoparticles doped with carbon (C-TiO2) were synthesized by means of sol-gel methods, and the synthesis was verified by means of X-ray photoelectron spectroscopy. The nanoparticles' photocatalytic disinfection activity of Listeria monocytogenes was tested under UV and visible light. The observed inactivation levels for 150 min of visible light exposure with and without UV cutoff filters were 2.10 and 2.45 log, respectively. We also found that traditional reactive oxygen species had insignificant actions on C-TiO2 photocatalysts and that L. monocytogenes inactivation in the C-TiO2 system under visible light was induced in large part by the midgap states (h(mid)(+)) that was produced photochemically from the visible light response. C-TiO(2)was found to accelerate bacterial inactivation (of L. monocytogenes) in the presence of visible light Our data suggests that the C-TiO2 may be useful in the development of alternative disinfectants for environmental applications. (C) 2015 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