Bi2S3 Nanoparticles on Bi2MoO6 Nanorods for Applications as Fast-Response Self-Powered Photoelectrochemical Photodetector and Water Splitting

被引：1

作者：

Shao, Panpan ^{[1
,2
]}

Ma, Nan ^{[1
,2
]}

Liu, Jinhong ^{[1
,2
]}

Dong, Wen ^{[1
,2
]}

Ge, Yanqing ^{[1
,2
]}

Jia, Le ^{[1
,2
]}

Song, Huaxuan ^{[1
,2
]}

Zhao, Hongze ^{[1
,2
]}

Lu, Chunhui ^{[1
,2
]}

Zhou, Yixuan ^{[1
,2
]}

Xu, Xinlong ^{[1
,2
]}

机构：

[1] Northwest Univ, Shaanxi Joint Lab Graphene, Int Collaborat Ctr Photoelect Technol & Nano Funct, State Key Lab Photon Technol Western China Energy, Xian 710069, Peoples R China

[2] Northwest Univ, Inst Photon & Photon Technol, Sch Phys, Nano Funct Mat, Xian 710069, Peoples R China

来源：

ACS APPLIED NANO MATERIALS | 2024年 / 7卷 / 17期

基金：

中国国家自然科学基金;

关键词：

Bi2S3/Bi2MoO6; heterostructure; type-II heterostructure; high stability; fastresponse; water splitting; HYDROGEN; HETEROSTRUCTURE; DEGRADATION; PERFORMANCE; HETEROJUNCTION;

D O I：

10.1021/acsanm.4c03505

中图分类号：

TB3 [工程材料学];

学科分类号：

0805 ; 080502 ;

摘要：

The rational design of a semiconductor heterostructure plays a crucial role in achieving high-performance photoelectrochemical (PEC) applications, such as photodetectors and water splitting due to the diverse functions of the heterointerface in light absorption, corrosion protection, and carrier transportation. Herein, we propose an approach by fully attaching Bi2S3 nanoparticles onto Bi2MoO6 nanorods to fabricate a photoanode for efficient self-powered PEC photodetection and water splitting. This photoanode exhibits remarkable responsivity (11.50 mA/W), rapid response time (200 mu s), excellent photon-to-electron conversion efficiency (32.02%), and long-term stability (30,000 s) even without an external bias voltage. These enhancements can be attributed to effective charge separation, unique nanostructural morphology, and an enhanced light capture ability. Leveraging these advantages, the Bi2S3/Bi2MoO6 heterostructure demonstrates an exceptionally high, stable, and bias-free PEC hydrogen evolution rate of 418.95 mu mol/cm(2)/h, surpassing that of both pure Bi2S3 and Bi2MoO6 by factors of 249.38 and 55.38, respectively. Furthermore, compared to previously reported Bi2MoO6-related heterostructures, the Bi2S3/Bi2MoO6 heterostructure exhibits superior PEC catalytic performance.

引用

页码：20523 / 20535

页数：13