Excellent photocatalytic and photoelectrochemical activities from 1D/2D FeSe2/SnSe heterojunction photocatalysts constructed by FeSe2 nanorods and SnSe nanosheets

被引：25
|
作者：
Xiong, Xiaoshan [1 ]
Zhang, Jun [1 ]
Cheng, Yinsen [1 ]
Chen, Chao [1 ]
Zeng, Jinghui [2 ]
Xi, Junhua [1 ]
Kong, Zhe [3 ]
Yuan, Yong-Jun [1 ]
Ji, Zhenguo [1 ]
机构：
[1] Hangzhou Dianzi Univ, Coll Mat & Environm Engn, New Energy Mat Res Ctr, Hangzhou 310018, Peoples R China
[2] Zhejiang Tech Inst Econ, Coll Management & Technol, Hangzhou 310018, Peoples R China
[3] Hangzhou Dianzi Univ, Coll Mat & Environm Engn, Ctr Adv Optoelect Mat, Hangzhou 310018, Peoples R China
来源：
INTERNATIONAL JOURNAL OF HYDROGEN ENERGY | 2022年 / 47卷 / 11期
基金：
中国国家自然科学基金;
关键词：
FeSe2; SnSe; Heterojunction; Photocatalysis; Photoelectrochemistry; CUBIC PHASE SNSE; OPTICAL-PROPERTIES; HYDROGEN; PERFORMANCE; WATER; HETEROSTRUCTURE; NANOPARTICLES; DEGRADATION;
D O I：
10.1016/j.ijhydene.2021.12.051
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：
In this work, FeSe2 nanorods have been employed to be loaded on SnSe nanosheets to develop 1D/2D FeSe2/SnSe heterojunction photocatalysts. These test results of XRD, SEM, HRTEM and XPS fully confirm the successful construction of FeSe2/SnSe heterojunction. These results of photocatalytic and photoelectrochemical test further reveal that FeSe2/SnSe heterojunction photocatalysts have excellent photocatalytic and photoelectrochemical activities. In comparison to the SnSe, the highest photocurrent density of the 1D/2D FeSe2/SnSe heterojunction photocatalyst is 19.2 mu A/cm(2), which has 123% promotion. Besides, the biggest degradation rates k of the 1D/2D FeSe2/SnSe heterojunction photocatalyst is 0.00612 nearly 297% enhancement than the SnSe. Further analysis indicated that as for 1D/2D FeSe2/SnSe heterojunction photocatalyst, its internal resistance was largely reduced and carrier separation efficiency was significantly improved with the recombination of FeSe2. This work confirmed that FeSe2/SnSe is an ideal composite system with great potential in photocatalysis. (C) 2021 Hydrogen Energy Publications LLC. Published by Elsevier Ltd. All rights reserved.
引用
收藏
页码：7189 / 7201
页数：13
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