Facile preparation of Ti3+/Ni co-doped TiO2 nanotubes photoanode for efficient photoelectrochemical water splitting

被引：65

作者：

Dong, Zhenbiao ^{[1
]}

Ding, Dongyan ^{[1
]}

Li, Ting ^{[1
]}

Ning, Congqin ^{[2
]}

机构：

[1] Shanghai Jiao Tong Univ, Sch Mat Sci & Engn, Inst Elect Mat & Technol, Shanghai 200240, Peoples R China

[2] Chinese Acad Sci, Shanghai Inst Ceram, State Key Lab High Performance Ceram & Superfine, Shanghai 200050, Peoples R China

来源：

APPLIED SURFACE SCIENCE | 2019年 / 480卷

基金：

中国国家自然科学基金;

关键词：

Ti-Ni alloy; Ni-doped; TiO2; nanotubes; Zn reduction; Ti3+/Ni co-doping; PEC water splitting; BLACK TIO2; ANATASE TIO2; PHOTOCATALYTIC ACTIVITY; HYDROGEN-PRODUCTION; NANOWIRE ARRAYS; NANOROD ARRAYS; SOLAR-CELLS; PERFORMANCE; FABRICATION; TITANIA;

D O I：

10.1016/j.apsusc.2019.02.237

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：

Photoelectrochemical (PEC) water splitting using TiO2-based nanostructures is one of the most promising strategies for sustainable energy development. Here we reported Ti3+/Ni co-doped TiO2 nanotubes for high-efficiency PEC water-splitting. The co-doped photoanode was prepared through Zn reduction of Ni-doped TiO2 nanotubes grown on Ti-Ni alloy. Ti3+/Ni co-doping modified the energy band structure and narrowed the band gap to 2.84 eV, which enhanced optical absorption, increased the charge carriers, density and promoted charge separation-transport process. A remarkable solar to hydrogen conversion efficiency of 1.51% was achieved, which was about 10 times that of undoped TiO2. This work will facilitate developing novel co-doping approaches of Ti3+ species and other elements for enhancing PEC activity of undoped TiO2 nanotubes.

引用

页码：219 / 228

页数：10

共 70 条

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