Pt@Cu2O/WO3 composite photocatalyst for enhanced photocatalytic water oxidation performance

被引：108

作者：

Gong, Huihua ^{[1
]}

Zhang, Yifeng ^{[1
]}

Cao, Yue ^{[1
]}

Luo, Maolan ^{[1
]}

Feng, Zhicheng ^{[2
]}

Yang, Wenbin ^{[2
]}

Liu, Kewei ^{[1
]}

Cao, Hongmei ^{[1
]}

Yan, Hongjian ^{[1
]}

机构：

[1] Sichuan Univ, Coll Chem, Chengdu 610065, Sichuan, Peoples R China

[2] Southwest Univ Sci & Technol, State Key Lab Environm Friendly Energy Mat, Chengdu 621010, Sichuan, Peoples R China

来源：

APPLIED CATALYSIS B-ENVIRONMENTAL | 2018年 / 237卷

基金：

中国国家自然科学基金;

关键词：

Composite photocatalyst; Square-like WO3; Cu2O; Photocatalytic water splitting; VISIBLE-LIGHT IRRADIATION; HYDROGEN EVOLUTION; WO3; NANOPARTICLES; FACILE SYNTHESIS; CU2O; COCATALYSTS; STABILITY; MECHANISM; G-C3N4; NANOCRYSTALS;

D O I：

10.1016/j.apcatb.2018.05.086

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：

In this study, Pt@Cu2O/WO3 composite photocatalyst was constructed via coupling Cu2O onto the edged (200) and (020) facets of square-like WO3 nanoplates and followed by photodeposition of Pt onto Cu2O. The remarkably enhanced photocatalytic water oxidation activity over such assembled Pt@Cu2O/WO3 composite photocatalyst was observed. The superior photocatalytic performance can be attributed to intrinsic nature of charge separation between different facets of square-like WO3, highly efficient WO3-to-Cu2O electron transfer occurring at the intimate contact interface between WO3 and Cu2O, and Pt as reduction cocatalyst. This work will provide new deep insights into the design of crystal-based Z-scheme heterostructure photocatalysts by facet preferentially coupling one semiconductor with another.

引用

页码：309 / 317

页数：9

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