共 48 条
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
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.
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页码:1075 / 1081
页数:7
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