Artificial photosynthetic hydrogen evolution over g-C3N4 nanosheets coupled with cobaloxime

被引：101

作者：

Cao, Shao-Wen ^{[1
]}

Liu, Xin-Feng ^{[2
]}

Yuan, Yu-Peng ^{[1
,3
]}

Zhang, Zhen-Yi ^{[1
]}

Fang, Jun ^{[1
]}

Loo, Say Chye Joachim ^{[1
]}

Barber, James ^{[1
,4
]}

Sum, Tze Chien ^{[2
]}

Xue, Can ^{[1
]}

机构：

[1] Nanyang Technol Univ, Sch Mat Sci & Engn, Solar Fuels Lab, Singapore 639798, Singapore

[2] Nanyang Technol Univ, Sch Phys & Math Sci, Div Phys & Appl Phys, Singapore 637371, Singapore

[3] Anhui Univ, Sch Chem & Chem Engn, Lab Adv Porous Mat, Hefei 230039, Peoples R China

[4] Univ London Imperial Coll Sci Technol & Med, Dept Life Sci, London SW7 2AZ, England

来源：

PHYSICAL CHEMISTRY CHEMICAL PHYSICS | 2013年 / 15卷 / 42期

基金：

中国国家自然科学基金;

关键词：

GRAPHITIC CARBON NITRIDE; VISIBLE-LIGHT; HOMOGENEOUS SYSTEM; CHARGE SEPARATION; CATALYST SYSTEMS; H-2; PRODUCTION; SOLAR FUEL; WATER; HYBRID; SEMICONDUCTOR;

D O I：

10.1039/c3cp53350f

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：

We report an economic and noble-metal-free artificial photosynthetic system, consisting of g-C3N4 as a photosensitizer and a photocatalyst, and cobaloxime as a co-catalyst, for H-2 generation. This system allows for effective electron transfer fromexcited g-C3N4 to Co-III(dmgH)(2)pyCl to generate reduced cobaloxime intermediate species for efficient H2 evolution. Transient fluorescence studies reveal that the presence of cobaloxime and TEOA promotes the population of excited electrons to transfer from g-C3N4, which is responsible for the high photocatalytic activity of this g-C3N4-cobaloxime conjugation system.

引用

页码：18363 / 18366

页数：4

共 38 条

[1] Self-templated synthesis of nanoporous CdS nanostructures for highly efficient photocatalytic hydrogen production under visible [J].

Bao, Ningzhong ;

Shen, Liming ;

Takata, Tsuyoshi ;

Domen, Kazunari .

CHEMISTRY OF MATERIALS, 2008, 20 (01) :110-117

[2] Ultrafast charge separation at CdS quantum dot/rhodamine B molecule interface [J].

Boulesbaa, Abdelaziz ;

Issac, Abey ;

Stockwell, Dave ;

Huang, Zhuangqun ;

Huang, Jier ;

Guo, Jianchang ;

Lian, Tianquan .

JOURNAL OF THE AMERICAN CHEMICAL SOCIETY, 2007, 129 (49) :15132-+

[3] Semiconductor-based Photocatalytic Hydrogen Generation [J].

Chen, Xiaobo ;

Shen, Shaohua ;

Guo, Liejin ;

Mao, Samuel S. .

CHEMICAL REVIEWS, 2010, 110 (11) :6503-6570

[4] Mechanism of H2 Evolution from a Photogenerated Hydridocobaloxime [J].

Dempsey, Jillian L. ;

Winkler, Jay R. ;

Gray, Harry B. .

JOURNAL OF THE AMERICAN CHEMICAL SOCIETY, 2010, 132 (47) :16774-16776

[5] Hydrogen Evolution Catalyzed by Cobaloximes [J].

Dempsey, Jillian L. ;

Brunschwig, Bruce S. ;

Winkler, Jay R. ;

Gray, Harry B. .

ACCOUNTS OF CHEMICAL RESEARCH, 2009, 42 (12) :1995-2004

[6] Simple Nickel-Based Catalyst Systems Combined With Graphitic Carbon Nitride for Stable Photocatalytic Hydrogen Production in Water [J].

Dong, Jingfeng ;

Wang, Mei ;

Li, Xueqiang ;

Chen, Lin ;

He, Yu ;

Sun, Licheng .

CHEMSUSCHEM, 2012, 5 (11) :2133-2138

[7] A homogeneous system for the photogeneration of hydrogen from water based on a platinum(II) terpyridyl acetylide chromophore and a molecular cobalt catalyst [J].

Du, Pingwu ;

Knowles, Kathryn ;

Eisenberg, Richard .

JOURNAL OF THE AMERICAN CHEMICAL SOCIETY, 2008, 130 (38) :12576-+

[8] Visible Light-Driven Hydrogen Production from Aqueous Protons Catalyzed by Molecular Cobaloxime Catalysts [J].

Du, Pingwu ;

Schneider, Jacob ;

Luo, Genggeng ;

Brennessel, William W. ;

Eisenberg, Richard .

INORGANIC CHEMISTRY, 2009, 48 (11) :4952-4962

[9] Rethinking Water Splitting [J].

Eisenberg, Richard .

SCIENCE, 2009, 324 (5923) :44-45

[10] Hydrogen production by molecular photocatalysis [J].

Esswein, Arthur J. ;

Nocera, Daniel G. .

CHEMICAL REVIEWS, 2007, 107 (10) :4022-4047

← 1 2 3 4 →