Solvothermal preparation of Fe-doped TiO2 nanotube arrays for enhancement in visible light induced photoelectrochemical performance

被引：72
|
作者：
Wang, Qingyao [1 ]
Jin, Rencheng [1 ]
Zhang, Miao [2 ]
Gao, Shanmin [1 ]
机构：
[1] Ludong Univ, Sch Chem & Mat Sci, Yantai 264025, Peoples R China
[2] Anhui Univ, Sch Phys & Mat Sci, Hefei 230601, Peoples R China
来源：
JOURNAL OF ALLOYS AND COMPOUNDS | 2017年 / 690卷
基金：
中国国家自然科学基金;
关键词：
TiO2 nanotube arrays; Fe3+ doping; Visible light response; Photoelectrochemical performance; PHOTOCATALYTIC ACTIVITY; SOLAR-CELLS; FABRICATION; EVOLUTION; STORAGE; ENERGY;
D O I：
10.1016/j.jallcom.2016.07.281
中图分类号：
O64 [物理化学（理论化学）、化学物理学];
学科分类号：
070304 ; 081704 ;
摘要：
Highly visible light active Fe-doped TiO2 nanotube arrays (Fe-TiO2 NTs) were prepared by a simple solvothermal method, and the morphology, composition, visible light response and photocatalytic property were characterized by field-emission scanning electron microscopy (FE-SEM), X-ray diffraction (XRD), X-ray photoelectron spectroscopy (XPS), UV-vis diffusion reflection spectroscopy (DRS), photo current and photoelectrocatalysis (PEC) test. The results indicated that the doping progress of Fe3+ ions didn't destroy the highly-ordered nanotube array structures, and Fe3+ concentrations had significant influences on photoelectrochemical properties of TiO2 NTs. The Fe TiO2 NTs prepared with the Fe3+ concentration of 1 mmol/L, exhibited more excellent photocurrent and PEC activities than those of TiO2 NTs and other Fe-TiO2 NTs under visible or solar light irradiation. The highly visible active Fe-TiO2 NTs may show extensive applications in solar cells and photocatalysts due to the excellent photo electrochemical performance. (C) 2016 Elsevier B.V. All rights reserved.
引用
收藏
页码：139 / 144
页数：6
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