Hydrogenated Defects in Graphitic Carbon Nitride Nanosheets for Improved Photocatalytic Hydrogen Evolution

被引：148

作者：

Li, Xiaobo ^{[1
]}

Hartley, Gareth ^{[1
]}

Ward, Antony J. ^{[1
]}

Young, Pamela A. ^{[2
]}

Masters, Anthony F. ^{[1
]}

Maschmeyer, Thomas ^{[1
]}

机构：

[1] Univ Sydney, Lab Adv Catalysis Sustainabil, Sch Chem, Sydney, NSW 2006, Australia

[2] Univ Sydney, Australian Ctr Microscopy & Microanal, Sydney, NSW 2006, Australia

来源：

JOURNAL OF PHYSICAL CHEMISTRY C | 2015年 / 119卷 / 27期

基金：

澳大利亚研究理事会;

关键词：

LIGHT; SEMICONDUCTORS; WATER; PHOTOREACTIVITY; CONDUCTIVITY; ABSORPTION; MORPHOLOGY; CATALYSIS; PHASE;

D O I：

10.1021/acs.jpcc.5b03538

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：

laminated carbon nitride nanosheets were prepared by high-temperature H-2 treatment of bulk carbon nitride with defects being introduced during this treatment. Although the defects can act as traps for charge carriers, reducing photoluminescence lifetime, they also form highly active photocatalytic sites for hydrogen evolution. The nanostructured materials exhibit substantially enhanced photocatalytic activity due to a synergistic effect between delamination, the presence of defects, and associated band gap changes.

引用

页码：14938 / 14946

页数：9

共 66 条

[11] Developing a polymeric semiconductor photocatalyst with visible light response [J].

Guo, Yong ;

Chu, Sheng ;

Yan, Shicheng ;

Wang, Ying ;

Zou, Zhigang .

CHEMICAL COMMUNICATIONS, 2010, 46 (39) :7325-7327

[12] Synthesis and Photocatalytic Activity of Poly(triazine imide) [J].

Ham, Yeilin ;

Maeda, Kazuhiko ;

Cha, Dongkyu ;

Takanabe, Kazuhiro ;

Domen, Kazunari .

CHEMISTRY-AN ASIAN JOURNAL, 2013, 8 (01) :218-224

[13]

Heeger AJ, 2001, ANGEW CHEM INT EDIT, V40, P2591, DOI 10.1002/1521-3773(20010716)40:14<2591::AID-ANIE2591>3.0.CO

[14]

2-0

[15] Noble-Metal-Free NiS/C3N4 for Efficient Photocatalytic Hydrogen Evolution from Water [J].

Hong, Jindui ;

Wang, Yongsheng ;

Wang, Yabo ;

Zhang, Wei ;

Xu, Rong .

CHEMSUSCHEM, 2013, 6 (12) :2263-2268

[16] A Highly Efficient PhotocatalystHydrogenated Black TiO2 for the Photocatalytic Splitting of Water [J].

Hu, Yun Hang .

ANGEWANDTE CHEMIE-INTERNATIONAL EDITION, 2012, 51 (50) :12410-12412

[17] H2 and O2 Evolution from Water Half-Splitting Reactions by Graphitic Carbon Nitride Materials [J].

Jorge, A. Belen ;

Martin, David James ;

Dhanoa, Mandeep T. S. ;

Rahman, Aisha S. ;

Makwana, Neel ;

Tang, Junwang ;

Sella, Andrea ;

Cora, Furio ;

Firth, Steven ;

Darr, Jawwad A. ;

McMillan, Paul F. .

JOURNAL OF PHYSICAL CHEMISTRY C, 2013, 117 (14) :7178-7185

[18] Three-Dimensional Macroscopic Assemblies of Low-Dimensional Carbon Nitrides for Enhanced Hydrogen Evolution [J].

Jun, Young-Si ;

Park, Jihee ;

Lee, Sun Uk ;

Thomas, Arne ;

Hong, Won Hi ;

Stucky, Galen D. .

ANGEWANDTE CHEMIE-INTERNATIONAL EDITION, 2013, 52 (42) :11083-11087

[19] Powder synthesis and characterization of amorphous carbon nitride [J].

Khabashesku, VN ;

Zimmerman, JL ;

Margrave, JL .

CHEMISTRY OF MATERIALS, 2000, 12 (11) :3264-3270

[20] Prototype carbon nitrides similar to the symmetric triangular form of melon [J].

Komatsu, T .

JOURNAL OF MATERIALS CHEMISTRY, 2001, 11 (03) :802-805

← 1 2 3 4 5 6 7 →