Free-standing CuS-ZnS decorated carbon nanotube films as immobilized photocatalysts for hydrogen production

被引：35

作者：

Chang, Chi-Jung ^{[1
]}

Wei, Yi-Hung ^{[1
]}

Kuo, Wen-Shyong ^{[2
]}

机构：

[1] Feng Chia Univ, Dept Chem Engn, 100 Wenhwa Rd, Taichung 40724, Taiwan

[2] Feng Chia Univ, Dept Aerosp & Syst Engn, 100 Wenhwa Rd, Taichung 40724, Taiwan

来源：

INTERNATIONAL JOURNAL OF HYDROGEN ENERGY | 2019年 / 44卷 / 58期

关键词：

Carbon nanotube; ZnS; CuS; Photocatalytic hydrogen production; Immobilized photocatalyst; HIGH-RESOLUTION XPS; WIRE MESH; GRAPHENE OXIDE; METAL SULFIDE; SHELL; DEGRADATION; WATER; NANOWIRES; EVOLUTION; H-2;

D O I：

10.1016/j.ijhydene.2018.04.229

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：

Free-standing carbon nanotube films (CNTF) with entangled carbon nanotubes (CNT) were used as conductive supports for the preparation of CuS-ZnS/CNTF composite as immobilized photocatalysts for H-2 production. The surface morphology, crystalline property, surface chemistry, and optical properties of the CuS-ZnS/CNTF photocatalysts were investigated. The effects of forming CuS-ZnS heterojunction and conductive CNTF on the separation of photogenerated charges and photocatalytic hydrogen production activity of CuS-ZnS/CNTF photocatalysts were evaluated by the photocatalytic hydrogen production tests. Conductive CNT films can prevent the recombination of photogenerated electron-hole pairs. The deposition of CuS nanoparticles on the ZnS/CNTF leads to higher photocatalytic activity which can be attributed to the effective electron-hole separation. Introducing ZnS and CuS makes the photocatalyst surface more hydrophilic. The porous structure contributed to the effective contact between the sacrificing agents and the photocatalysts, leading to enhanced H-2 production activity. (C) 2018 Hydrogen Energy Publications LLC. Published by Elsevier Ltd. All rights reserved.

引用

页码：30553 / 30562

页数：10

共 42 条

[1] Growth of ZnO nanowires on nonwoven polyethylene fibers [J].