In Situ Formation of Disorder-Engineered TiO2(B)-Anatase Heterophase Junction for Enhanced Photocatalytic Hydrogen Evolution

被引：121

作者：

Cai, Jinmeng ^{[1
]}

Wang, Yating ^{[1
]}

Zhu, Yingming ^{[1
]}

Wu, Moqing ^{[1
]}

Zhang, Hao ^{[1
]}

Li, Xingang ^{[1
]}

Jiang, Zheng ^{[2
]}

Meng, Ming ^{[1
]}

机构：

[1] Tianjin Univ, Collaborat Innovat Ctr Chem Sci & Engn Tianjin, Tianjin Key Lab Appl Catalysis Sci & Engn, Sch Chem Engn & Technol, Tianjin 30072, Peoples R China

[2] Chinese Acad Sci, Shanghai Inst Appl Phys, Shanghai Synchrotron Radiat Facil, Shanghai 201204, Peoples R China

来源：

ACS APPLIED MATERIALS & INTERFACES | 2015年 / 7卷 / 45期

基金：

中国国家自然科学基金;

关键词：

hydrogenation; TiO2(B); heterophase junction; photocatalytic; water splitting; TITANIUM-DIOXIDE; BLACK TIO2; NANOPARTICLES; ABSORPTION; NANOWIRES; WATER;

D O I：

10.1021/acsami.5b07318

中图分类号：

TB3 [工程材料学];

学科分类号：

0805 ; 080502 ;

摘要：

Hydrogenation of semiconductors is an efficient way to increase their photocatalytic activity by forming disorder-engineered structures. Herein, we report a facile hydrogenation process of TiO2(B) nanobelts to in situ generate TiO2(B)-anatase heterophase junction with a disordered surface shell. The catalyst exhibits an excellent performance for photocatalytic hydrogen evolution under the simulated solar light irradiation (similar to 580 mu mol h(-1), 0.02 g photocatalyst). The atomically well-matched heterophase junction, along with the disorder-engineered surface shell, promotes the separation of electron-hole and inhibits their recombination. This strategy can be further employed to design other disorder-engineered composite photocatalysts for solar energy utilization.

引用

页码：24987 / 24992

页数：6

共 30 条

[1] Synergistic Effect of Titanate-Anatase Heterostructure and Hydrogenation-Induced Surface Disorder on Photocatalytic Water Splitting [J].