Fabrication of bismuth oxide/titanium dioxide nano-tube arrays photoelectrode and its enhanced visible light photocatalytic performance for degradation of 4-chlorphenol

被引：13
作者：
Cui, Yuqi [1 ,2 ]
Zhang, Huixuan [1 ,2 ]
Guo, Ruonan [1 ,2 ]
Ma, Qiuling [1 ,2 ]
Deng, Xiaoyong [1 ,2 ]
Cheng, Xiuwen [1 ,2 ,4 ,5 ]
Li, Xiaoli [1 ,2 ]
Xie, Mingzheng [1 ,2 ]
Cheng, Qingfeng [3 ]
Zou, Changwu [3 ]
机构：
[1] Lanzhou Univ, Coll Earth & Environm Sci, Minist Educ, Key Lab Western Chinas Environm Syst, Lanzhou 730000, Gansu, Peoples R China
[2] Lanzhou Univ, Coll Earth & Environm Sci, Key Lab Environm Pollut Predict & Control, Lanzhou 730000, Gansu, Peoples R China
[3] Chengdu Univ Informat Technol, Coll Resources & Environm, Chengdu 610225, Sichuan, Peoples R China
[4] Nanjing Univ Informat Sci & Technol, Collaborat Innovat Ctr Atmospher Environm & Equip, Sch Environm Sci & Engn, Jiangsu Engn Technol Res Ctr Environm Cleaning Ma, Nanjing 210044, Jiangsu, Peoples R China
[5] Chinese Acad Sci, Shanghai Inst Ceram, State Key Lab High Performance Ceram & Superfine, Shanghai 2000050, Peoples R China
来源：
ELECTROCHIMICA ACTA | 2017年 / 246卷
基金：
中国国家自然科学基金;
关键词：
Bi2O3/TiO2 nano-tube arrays; Photoelectrode; Visible light; Photocatalysis; 4-chlorphenol; TIO2 NANOTUBES PHOTOELECTRODE; HYDROTHERMAL SYNTHESIS; CONSTRUCTION; IRRADIATION; REDUCTION; COMPOSITE; FACILE; HETEROJUNCTION; DICLOFENAC; EFFICIENCY;
D O I：
10.1016/j.electacta.2017.06.153
中图分类号：
O646 [电化学、电解、磁化学];
学科分类号：
081704 ;
摘要：
In order to improve the photocatalytic (PC) performance of TiO2 nano-material, TiO2 nanotube arrays (NTAs) was fabricated by anodization. Subsequently, Bi2O3 nano-particles were successfully deposited onto the surface of TiO2 NTAs through galvanostatic electrodeposition strategy. Afterwards, series of characterizations including scanning electron microscope (SEM), X-ray diffraction (XRD), X-ray photoelectron spectroscopy (XPS), Ultraviolet-visible diffuse reflectance spectroscopy (UV-vis DRS) and photoelectrochemical (PECH) measurements were applied to clarify physicochemical properties of the as-fabricated Bi2O3/TiO2 NTAs photoelectrode. All results indicated that the light absorbance and photoinduced charge separation efficiency of Bi2O3/TiO2 NTAs photoelectrode were significantly improved. As expected, Bi2O3/TiO2 NTAs photoelectrode displayed higher PC efficiency for degradation of 4-chlorphenol (4-CP) aqueous solution than that of pristine TiO2 NTAs. Besides these, the enhanced visible light PC mechanism was proposed. Furthermore, Bi2O3/TiO2 NTAs photoelectrode performed good reusability and stability even after six recycle utilization. (C) 2017 Elsevier Ltd. All rights reserved.
引用
收藏
页码：1075 / 1081
页数：7
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