The CdS/CaTiO3 cubic core-shell composite towards enhanced photocatalytic hydrogen evolution and photodegradation

被引：16
作者：
Yang, Hu [1 ]
Li, Xinyan [2 ]
Zhao, Tianli [1 ]
Peng, Qiying [1 ]
Yang, Wenhui [1 ]
Cao, Jun [1 ]
Zheng, Yingying [1 ]
Li, Chaorong [1 ]
Pan, Jiaqi [1 ]
机构：
[1] Zhejiang Sci Tech Univ, Dept Phys, Key Lab Opt Field Manipulat Zhejiang Prov, Hangzhou 310018, Peoples R China
[2] Zhejiang Sci Tech Univ, Dept Chem, Hangzhou 310018, Peoples R China
来源：
INTERNATIONAL JOURNAL OF HYDROGEN ENERGY | 2023年 / 48卷 / 57期
基金：
中国国家自然科学基金;
关键词：
Core-shell composite; HER; Photodegradation; Stability; SURFACE MODIFICATION; NANOWIRES; G-C3N4;
D O I：
10.1016/j.ijhydene.2023.03.076
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：
The CdS/CaTiO3 cubic core-shell composite is synthesized via a hydrothermal-chemical method. The CdS/CaTiO3 cubic core-shell composite (CdS/CTO-2) exhibits remarkable photocatalytic HER activity (-1025.27 mmol$g �1 h-1) and photodegradation enhancement than that of single CaTiO3 (-21 folds of HER,-19 folds of photodegradation) and single CdS (-15 folds of HER,-15 folds of photodegradation), and a decent stability. There, CdS/CaTiO3 composite with appropriate potential gradient and CdS with better visible light response can improve carrier efficiency, including increasing carrier transportation, prolonging lifetime and decreasing recombination. Additionally, cubic core-shell microstructure can increase active sites, while maintaining photocatalytic stability.& COPY; 2023 Hydrogen Energy Publications LLC. Published by Elsevier Ltd. All rights reserved.
引用
收藏
页码：21788 / 21798
页数：11
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