Construction of Ti3+ self-doped TiO2/BCN heterojunction with enhanced photoelectrochemical performance for water splitting

被引：8

作者：

Liang, Zheng ^{[1
]}

Li, Junqi ^{[1
]}

Lei, Nan ^{[1
]}

Guo, Liu ^{[1
]}

Song, Qianqian ^{[1
]}

机构：

[1] Shaanxi Univ Sci & Technol, Sch Mat Sci & Engn, Xian 710021, Shaanxi, Peoples R China

来源：

JOURNAL OF MATERIALS SCIENCE-MATERIALS IN ELECTRONICS | 2019年 / 30卷 / 03期

基金：

中国国家自然科学基金;

关键词：

SEMICONDUCTOR ELECTRODES; PHOTOCATALYTIC ACTIVITY; TIO2-X NANOPARTICLES; NANOTUBE ARRAYS; ANATASE TIO2; 001; FACETS; LIGHT; NANOSHEETS; NANOWIRES; DEGRADATION;

D O I：

10.1007/s10854-018-0472-4

中图分类号：

TM [电工技术]; TN [电子技术、通信技术];

学科分类号：

0808 ; 0809 ;

摘要：

Ti3+ self-doped TiO2/BCN heterojunction (Ti3+-TiO2/BCN) was constructed via a hydrothermal method with using NaBH4 as reducing agent. The BCN nanosheets function as a good support to block the agglomeration of Ti3+-TiO2 nanoparticles, which decreased the recombination of photogenerated charge carriers. The Ti3+-TiO2/BCN sample exhibited enhanced electronic conductivity and absorption in visible light region because of the introduction of Ti3+ and oxygen vacancies (Ov). The as-prepared Ti3+-TiO2/BCN sample showed enhanced photoelectrochemical (PEC) performance as confirmed by analyses of LSV, EIS, Bode plots and M-S. Under the visible light irradiation, the optimally Ti3+ self-doped TiO2/BCN heterojunction sample yield a photocurrent density of approximate to 0.69mA/cm(2) at 1.23V versus RHE, which is over three times as high as BCN and TiO2/BCN at the same conditions.

引用

页码：2006 / 2015

页数：10

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