Solar-to-fuels conversion over In2O3/g-C3N4 hybrid photocatalysts

被引：412

作者：

Cao, Shao-Wen ^{[1
]}

Liu, Xin-Feng ^{[2
]}

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

Zhang, Zhen-Yi ^{[1
]}

Liao, Yu-Sen ^{[1
]}

Fang, Jun ^{[1
]}

Loo, Say Chye Joachim ^{[1
]}

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

来源：

APPLIED CATALYSIS B-ENVIRONMENTAL | 2014年 / 147卷

基金：

中国国家自然科学基金; 新加坡国家研究基金会;

关键词：

Photocatalysis; Hydrogen production; CO2; reduction; Graphitic carbon nitride; Charge transfer; GRAPHITIC CARBON NITRIDE; VISIBLE-LIGHT IRRADIATION; HYDROGEN GENERATION; COMPOSITE PHOTOCATALYSTS; H-2-PRODUCTION ACTIVITY; H-2; EVOLUTION; QUANTUM DOTS; NANOSHEETS; WATER; REDUCTION;

D O I：

10.1016/j.apcatb.2013.10.029

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 have achieved in-situ growth of In2O3 nanocrystals onto the sheet-like g-C3N4 surface. The resulting In2O3-g-C3N4 hybrid structures exhibit considerable improvement on the photocatalytic activities for H-2 generation and CO2 reduction. The enhanced activities are attributed to the interfacial transfer of photogenerated electrons and holes between g-C3N4 and In2O3, leading to effective charge separation on both parts. Further studies by transient PL spectroscopy confirm that the In2O3-g-C3N4 heterojunctions remarkably promote the charge transfer efficiency, thereby increase the charge carrier lifetime for the photocatalytic reactions. (C) 2013 Elsevier B.V. All rights reserved.

引用

页码：940 / 946

页数：7

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