Interfacial Engineering of the Platinum/Molybdenum Disulfide/ graphitic Carbon Nitride Composite for Enhanced Photocatalytic Hydrogen Production

被引：16

作者：

Ding, Jianjun ^{[1
,2
]}

Song, Lili ^{[3
]}

Li, Xiangyang ^{[1
]}

Chen, Lin ^{[1
]}

Li, Xiaoxiao ^{[1
]}

Sun, Jun ^{[1
]}

Zhang, Xian ^{[1
]}

Wang, Yuqiao ^{[3
]}

Tian, Xingyou ^{[1
]}

机构：

[1] Chinese Acad Sci, Inst Solid State Phys, Hefei Inst Phys Sci, Key Lab Photovolta & Energy Conservat Mat, Hefei 230031, Anhui, Peoples R China

[2] Anhui Inst Innovat Ind Technol, Hefei 230088, Anhui, Peoples R China

[3] Southeast Univ, Res Ctr Nano Photoelectrochemsitry & Devices, Sch Chem & Chem Engn, Nanjing 211189, Jiangsu, Peoples R China

来源：

ACS APPLIED ENERGY MATERIALS | 2022年 / 5卷 / 07期

基金：

中国国家自然科学基金;

关键词：

photocatalytic hydrogen production; Pt/MoS2/g-C3N4; composites; metal-support interaction; charge separation and transfer; surface charge; visible light; HIGH-EFFICIENCY; NOBLE-METAL; Z-SCHEME; WATER; G-C3N4; EVOLUTION; NANOSHEETS; SUPPORT; HETEROJUNCTION; COCATALYST;

D O I：

10.1021/acsaem.2c01292

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：

Construction of effective charge separation and transfer channels is a critical issue in photocatalytic energy conversion. In this work, ultrasmall fine Pt nanoparticles and MoS(2 )nanosheets were deposited on the surface of g-C3N4 as cocatalysts. The presence of MoS2 can effectively induce the structural reconstruction of g-C3N4 and the redistribution of surface charges. The enriched electrons localized in the S and N atoms were conductive to the reduction of Pt4+ and the promotion of the metal- support interaction, thus boosting charge separation and transfer. As a result, the obtained Pt/MoS2/g-C3N4 composite provided a highly photocatalytic hydrogen activity, up to 1595.3 mu mol h(-1 )with an AQE of 30.9% at 435 nm, 87.6 times higher than g-C3N4. This work may provide some insights into the rational design of high-efficient composite photocatalysts for solar energy conversion.

引用

页码：8800 / 8811

页数：12

共 49 条

[1] Shape-dependent photocatalytic hydrogen evolution activity over a Pt nanoparticle coupled g-C3N4 photocatalyst [J].