In-situ reduction synthesis of nano-sized Cu2O particles modifying g-C3N4 for enhanced photocatalytic hydrogen production

被引：352

作者：

Chen, Jie ^{[1
]}

Shen, Shaohua ^{[1
]}

Guo, Penghui ^{[1
]}

Wang, Meng ^{[1
]}

Wu, Po ^{[1
]}

Wang, Xixi ^{[1
]}

Guo, Liejin ^{[1
]}

机构：

[1] Xi An Jiao Tong Univ, Int Res Ctr Renewable Energy, State Key Lab Multiphase Flow Power Engn, Xianning West Rd 28, Xian 710049, Shaanxi, Peoples R China

来源：

APPLIED CATALYSIS B-ENVIRONMENTAL | 2014年 / 152卷

基金：

中国国家自然科学基金;

关键词：

Cu2O/g-C3N4; Type II band alignment; Hydrogen production; Photocatalytic; GRAPHITIC CARBON NITRIDE; VISIBLE-LIGHT; WATER; XPS; CUO; GENERATION; EVOLUTION; OXIDATION; CATALYSTS; COPPER;

D O I：

10.1016/j.apcatb.2014.01.047

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：

Cu2O nanoparticles (NPs) were directly formed on g-C3N4 via a one-pot in-situ reduction method. The physical and photophysical properties of these Cu2O NPs modified g-C3N4 photocatalysts were characterized to investigate the effects of Cu2O NPs on the photocatalytic activities of g-C3N4. Close contact was formed between Cu2O and g-C3N4 and the Cu2O NPs were well dispersed on g-C3N4. The visible light photocatalytic hydrogen production activity over g-C3N4 was enhanced by more than 70% with Cu2O NPs modification. It is revealed that the efficient visible light absorption and Type II band alignment induced charge separation by Cu2O NPs modification should be the key factors for improved photocatalytic performance. (c) 2014 Elsevier B.V. All rights reserved.

引用

页码：335 / 341

页数：7

共 33 条

[21] Valence band offset of ZnO/Zn0.85Mg0.15O heterojunction measured by x-ray photoelectron spectroscopy [J].

Su, S. C. ;

Lu, Y. M. ;

Zhang, Z. Z. ;

Shan, C. X. ;

Li, B. H. ;

Shen, D. Z. ;

Yao, B. ;

Zhang, J. Y. ;

Zhao, D. X. ;

Fan, X. W. .

APPLIED PHYSICS LETTERS, 2008, 93 (08)

[22] Improved Photoelectrical Performance of Single-Crystal TiO2 Nanorod Arrays by Surface Sensitization with Copper Quantum Dots [J].

Sun, Qiong ;

Li, Yang ;

Sun, Xianmiao ;

Dong, Lifeng .

ACS SUSTAINABLE CHEMISTRY & ENGINEERING, 2013, 1 (07) :798-804

[23] p-n Heterojunction photoelectrodes composed of Cu2O-loaded TiO2 nanotube arrays with enhanced photoelectrochemical and photoelectrocatalytic activities [J].

Wang, Mengye ;

Sun, Lan ;

Lin, Zhiqun ;

Cai, Jianhuai ;

Xie, Kunpeng ;

Lin, Changjian .

ENERGY & ENVIRONMENTAL SCIENCE, 2013, 6 (04) :1211-1220

[24] Polymeric Graphitic Carbon Nitride for Heterogeneous Photocatalysis [J].

Wang, Xinchen ;

Blechert, Siegfried ;

Antonietti, Markus .

ACS CATALYSIS, 2012, 2 (08) :1596-1606

[25]

Wang XC, 2009, NAT MATER, V8, P76, DOI [10.1038/nmat2317, 10.1038/NMAT2317]

[26] Enhancement of photocurrent and photocatalytic activity of ZnO hybridized with graphite-like C3N4 [J].

Wang, Yajun ;

Shi, Rui ;

Lin, Jie ;

Zhu, Yongfa .

ENERGY & ENVIRONMENTAL SCIENCE, 2011, 4 (08) :2922-2929

[27] The Role of Cu(I) Species for Photocatalytic Hydrogen Generation Over CuOx/TiO2 [J].

Wu, Yuqi ;

Lu, Gongxuan ;

Li, Shuben .

CATALYSIS LETTERS, 2009, 133 (1-2) :97-105

[28] A novel mesoporous Pd/cobalt aluminate bifunctional catalyst for aldol condensation and following hydrogenation [J].

Xu, Wenjie ;

Liu, Xiaohui ;

Ren, Jiawen ;

Zhang, Peng ;

Wang, Yanqin ;

Guo, Yanglong ;

Guo, Yun ;

Lu, Guanzhong .

CATALYSIS COMMUNICATIONS, 2010, 11 (08) :721-726

[29] Organic-inorganic composite photocatalyst of g-C3N4 and TaON with improved visible light photocatalytic activities [J].

Yan, S. C. ;

Lv, S. B. ;

Li, Z. S. ;

Zou, Z. G. .

DALTON TRANSACTIONS, 2010, 39 (06) :1488-1491

[30] Photodegradation Performance of g-C3N4 Fabricated by Directly Heating Melamine [J].

Yan, S. C. ;

Li, Z. S. ;

Zou, Z. G. .

LANGMUIR, 2009, 25 (17) :10397-10401

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