Inhibition of photocorrosion of CdS via assembling with thin film TiO2 and removing formed oxygen by artificial gill for visible light overall water splitting

被引：184

作者：

Ning, Xiaofeng ^{[1
,2
]}

Li, Jian ^{[3
]}

Yang, Baojun ^{[1
]}

Zhen, Wenlong ^{[1
]}

Li, Zhen ^{[1
]}

Tian, Bin ^{[1
]}

Lu, Gongxuan ^{[1
]}

机构：

[1] Chinese Acad Sci, Lanzhou Inst Chem Phys, State Key Lab Oxo Synth & Select Oxidat, Lanzhou 730000, Peoples R China

[2] Univ Chinese Acad Sci, Beijing 100049, Peoples R China

[3] China Astronaut Res & Training Ctr, Beijing 100094, Peoples R China

来源：

APPLIED CATALYSIS B-ENVIRONMENTAL | 2017年 / 212卷

基金：

中国国家自然科学基金;

关键词：

Inhibition of CdS photocorrosion; Inhibition H-2 and O-2 back; TiO2 thin film loading; Overall water splitting; Artificial gill; PHOTOCATALYTIC HYDROGEN-PRODUCTION; HIGHLY EFFICIENT REDUCTION; METAL-ORGANIC FRAMEWORKS; H-2; EVOLUTION; CATALYTIC-ACTIVITY; ELECTRON-TRANSFER; CHARGE-TRANSFER; SOLID-SOLUTION; SURFACE-AREA; EOSIN-Y;

D O I：

10.1016/j.apcatb.2017.04.074

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：

CdS is a well-known and important visible-light responsive photocatalyst for overall water splitting. However, the serious photocorrosion property limits its application in photocatalysis. Through modification TiO2 thin film over CdS surface, TiO2/CdS photocatalyst exhibited an obviously enhanced photocatalytic stability. The H2 evolution rate (3.074 mu mol h(-1) g(-1)) of modified Pt-TiO2/CdS under visible light toward overall water splitting was almost 6 times higher than that of CdS sample (0.534 pimol h(-1) g(-1)). The application of artificial gill in photocatalytic overall water splitting system removed the newly formed oxygen from catalyst surface mainly inhibiting the hydrogen and oxygen back recombination to water and preventing the oxygen led oxidation or photocorrosion. By these two strategies, we fulfilled visible light induced overall water splitting in CdS dispersion and achieved satisfied stability during reaction. (C) 2017 Elsevier B.V. All rights reserved.

引用

页码：129 / 139

页数：11

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