共 48 条
Enhanced visible-light-driven photocatalytic inactivation of Escherichia coli by Bi2O2CO3/Bi3NbO7 composites
被引:112
作者:

Gan, Huihui
论文数: 0 引用数: 0
h-index: 0
机构:
Wuhan Univ Technol, Sch Resources & Environm Engn, Wuhan 430070, Peoples R China Wuhan Univ Technol, Sch Resources & Environm Engn, Wuhan 430070, Peoples R China

Zhang, Gaoke
论文数: 0 引用数: 0
h-index: 0
机构:
Wuhan Univ Technol, Sch Resources & Environm Engn, Wuhan 430070, Peoples R China Wuhan Univ Technol, Sch Resources & Environm Engn, Wuhan 430070, Peoples R China

Huang, Hongxia
论文数: 0 引用数: 0
h-index: 0
机构:
Wuhan Univ Technol, Sch Resources & Environm Engn, Wuhan 430070, Peoples R China Wuhan Univ Technol, Sch Resources & Environm Engn, Wuhan 430070, Peoples R China
机构:
[1] Wuhan Univ Technol, Sch Resources & Environm Engn, Wuhan 430070, Peoples R China
基金:
中国国家自然科学基金;
关键词:
Bismuth niobate;
Bismuth subcarbonate;
Escherichia coli;
Photocatalysis;
Visible light;
PATHOGENIC BACTERIA;
EFFICIENT;
BEHAVIOR;
PHOTODEGRADATION;
NANOPARTICLES;
DEGRADATION;
PERFORMANCE;
D O I:
10.1016/j.jhazmat.2013.01.066
中图分类号:
X [环境科学、安全科学];
学科分类号:
08 ;
0830 ;
摘要:
The Bi2O2CO3/Bi3NbO7 (BiCO/BiNbO) composite was successfully fabricated by a simple hydrothermal method and found to be an effective visible-light-driven photocatalyst for inactivation of Escherichia coli (E. coli). The BiCO/BiNbO composite was characterized by X-ray diffraction (XRD), scanning electron microscopy (SEM), high-resolution transmission electron microscopy (HRTEM), UV-vis diffuse reflectance spectrum (UV-vis DRS), and Fourier transform infrared (FT-IR) spectroscopy. The BiCO/BiNbO composite exhibited largely enhanced photocatalytic inactivation of E. coli as compared to the pure Bi3NbO7 under visible light irradiation. The enhanced photocatalytic performance can be attributed to the improved separation efficiency of the photogenerated holes and electrons. In addition, the possible bactericidal mechanism of the BiCO/BiNbO composite under visible light irradiation was discussed. (C) 2013 Elsevier B.V. All rights reserved.
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页码:131 / 137
页数:7
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