The p-n-type Bi5O7I-modified porous C3N4 nano-heterojunction for enhanced visible light photocatalysis

被引：49
作者：
Dong, Zongjun
Pan, Jiaqi
Wang, Beibei
Jiang, Ziyuan
Zhao, Chuang
Wang, Jingjing
Song, Changsheng
Zheng, Yingying
Cui, Can
Li, Chaorong [1 ]
机构：
[1] Zhejiang Sci Tech Univ, ATMMT Minist Educ, Dept Phys, Hangzhou 310018, Zhejiang, Peoples R China
来源：
JOURNAL OF ALLOYS AND COMPOUNDS | 2018年 / 747卷
关键词：
p-n-type; Photocatalytic degradation; Nano-heterojunction; Cycling; GRAPHITIC CARBON NITRIDE; CONTROLLED HYDROTHERMAL SYNTHESIS; EFFICIENT PHOTOCATALYST; FACILE SYNTHESIS; DEGRADATION; PERFORMANCE; NANOSHEETS; COMPOSITE; TIO2; CO2;
D O I：
10.1016/j.jallcom.2018.03.112
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：
A p-n-type Bi5O7I-modified porous g-C3N4 nano-heterojunction is synthesized via a simple preparation technique using the template method and annealing-hydrothermal co-deposition method. The results of SEM, EDS, elemental mapping, XRD, TEM, XPS and FT-IR imply that the Bi5O7I nanoparticles were successfully deposited on the surface of the g-C3N4 nanosheets. The photocatalytic activity of the as-prepared p-n-type nano-heterojunction remarkably exhibits an enhancement of 30 times that of the unmodified samples. Furthermore, the photocatalytic degradation enhancement mechanism has been studied, which could be ascribed to the p-n-type nano-heterojunction and lamellar-porous structure of the g-C3N4. (C) 2018 Elsevier B.V. All rights reserved.
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收藏
页码：788 / 795
页数：8
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