SrTiO3-CaCr0.5Nb0.5O3 solid solutions as p-type photocatalysts for Z-scheme water splitting under visible light illumination

被引：0
|
作者：
Zeming Gu [1 ,2 ]
Qi Wang [1 ]
Xiaoqin Sun [1 ]
Lingwei Lu [1 ]
Yuwei Zhang [1 ]
Ran Wang [1 ]
Shu Jin [1 ]
Yinlin Shao [1 ]
Jun Qian [1 ]
Xiaoxiang Xu [1 ]
机构：
[1] Clinical and Central Lab, Putuo People's Hospital, Department of Neurosurgery, Tongji Hospital, Tongji University School of Medicine, Shanghai Key Lab of Chemical Assessment and Sustainability, School of Chemical Science and Engineering, Tongji University
[2] State Key Laboratory of Fluid Power and Mechatronic Systems, School of Mechanical Engineering, Zhejiang University
来源：
JournalofMaterialsScience&Technology | 2021年 / 87卷 / 28期
基金：
中央高校基本科研业务费专项资金资助; 中国国家自然科学基金; 上海市自然科学基金;
关键词：
D O I：
暂无
中图分类号：
TQ116.2 [氢气]; O643.36 [催化剂]; O644.1 [光化学];
学科分类号：
070304 ; 0817 ; 081704 ; 081705 ;
摘要：
P-type semiconductivity has been observed in solid solution series(SrTiO3)1-x(CaCr0.5Nb0.5O3)x(0.0 ≤x ≤ 0.15), which all adopt cubic symmetry and own intense absorption in the visible light region.These solid solutions are superior H2 evolution photocatalysts under visible light illumination(λ≥400 nm). An AQE as high as 1.02 % at 420 ± 20 nm has been achieved at optimal composition(SrTiO3)0.85(CaCr0.5Nb0.5O3)0.15which significantly surpasses the parent compounds. Stoichiometric H2/O2production under visible light illumination has been successfully realized using Z-scheme system containing(SrTiO3)0.85(CaCr0.5Nb0.5O3)0.15, WO3and I~-/IO3~- redox couple.
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页码：46 / 53
页数：8
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