Engineering Bi2S3/BiOI p-n heterojunction to sensitize TiO2 nanotube arrays photoelectrodes for highly efficient solar cells and photocatalysts

被引：39
作者：
Wang, Qingyao [1 ]
Liu, Zhiyuan [1 ]
Feng, Hao [1 ]
Jin, Rencheng [1 ]
Zhang, Shaohua [1 ]
Gao, Shanmin [1 ]
机构：
[1] Ludong Univ, Sch Chem & Mat Sci, Yantai 264025, Peoples R China
来源：
CERAMICS INTERNATIONAL | 2019年 / 45卷 / 03期
基金：
中国国家自然科学基金;
关键词：
TiO2 nanotube arrays; P-n heterojunction; Solar cells; Solvothermal method; ADSORPTION PROPERTIES; EFFECTIVE REMOVAL; PAMAM DENDRIMERS; FUEL ETHANOL; HG(II); TIANJIN; DYE;
D O I：
10.1016/j.ceramint.2018.11.075
中图分类号：
TQ174 [陶瓷工业]; TB3 [工程材料学];
学科分类号：
0805 ; 080502 ;
摘要：
To significantly improve the solar harvesting and electron transportation, Bi2S3/BiOI p-n heterojunctions were successfully formed on the surface of TiO2 nanotube arrays (TiO2 NTs/Bi2S3-BiOI) by a simple solvothermal method, and the morphology, composition and photoelectrochemical property of the TiO2 NTs/Bi2S3-BiOI were investigated by adjusting the concentration ratio of sulphur/iodonium. TiO2 NTs/Bi2S3-BiOI nanosheets and nanorods were prepared, and the self-assembled microflowers were also observed. The results indicated that flower-like TiO2 NTs/Bi2S3-BiOI showed high visible light absorption, photocurrent density and rapid photoelectrocatalytic removal of organic dyes and Cr(VI). The growth and photocatalytic mechanism were proposed to illuminate the high photoelectrochemical performances. The excellent photoelectrochemical activities drive the TiO2 NTs/Bi2S3/BiOI being superior environmental and energy materials in the applications of wastewater purification and solar cells.
引用
收藏
页码：3995 / 4002
页数：8
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