Two dimensional Z-scheme AgCl/Ag/CaTiO3 nano-heterojunctions for photocatalytic hydrogen production enhancement

被引：88
作者：
Jiang, Ziyuan [1 ]
Pan, Jiaqi [1 ]
Wang, Beibei [1 ]
Li, Chaorong [1 ]
机构：
[1] Zhejiang Sci Tech Univ, Dept Phys, Key Lab ATMMT, Minist Educ, Hangzhou 310018, Zhejiang, Peoples R China
来源：
APPLIED SURFACE SCIENCE | 2018年 / 436卷
关键词：
Z-scheme; Photocatalytic hydrogen production; Nano-heterojunction; Stability; IN-SITU SYNTHESIS; VISIBLE-LIGHT; G-C3N4; DEGRADATION; NANOPARTICLES; COMPOSITES; STABILITY; HETEROSTRUCTURES; NANOCOMPOSITES; CONSTRUCTION;
D O I：
10.1016/j.apsusc.2017.12.065
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 two dimensional(2D) Z-scheme AgCl/Ag/Ca/TiO3 nano-heterojunction is synthesized via simple preparation of hydrothermal-chemical co-deposition method. The results of SEM, EDS, elemental mapping, XRD, TEM, XPS and Raman shift imply that the AgCl/Ag nanoparticles have deposited on the surfaces of CaTiO3 nanosheets successfully. Compared with the unmodified samples, the photocatalytic activity of the as-prepared 2D AgCl/Ag/CaTiO3 nano-heterojunction exhibits a remarkable enhancement by the hydrogen production. Further, the photocatalytic process has been studied and the mechanism of the photocatalytic hydrogen production enhancement has been provided, which could be ascribed to the Z-scheme heterojunction and 2D lamellar structure of the CaTiO3. (C) 2017 Elsevier B.V. All rights reserved.
引用
收藏
页码：519 / 526
页数：8
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