Photocatalytic hydrogen production by magnetically separable Fe3O4@ZnS and NiCo2O4@ZnS core-shell nanoparticles

被引：49

作者：

Chang, Chi-Jung ^{[1
]}

Lee, Zijing ^{[1
]}

Wei, MingDeng ^{[2
]}

Chang, Chung-Chieh ^{[3
]}

Chu, Kuan-Wu ^{[1
]}

机构：

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

[2] Fuzhou Univ, Inst New Energy Technol & Nanomat, Fuzhou 350002, Peoples R China

[3] Acad Sinica, Inst Phys, Taipei, Taiwan

来源：

INTERNATIONAL JOURNAL OF HYDROGEN ENERGY | 2015年 / 40卷 / 35期

关键词：

Core-shell; H-2; production; ZnS; Magnetically separable; Photocatalyst; Fe3O4; VISIBLE-LIGHT; PERFORMANCE; ZNS; COMPOSITES; PARTICLES; GROWTH; ARRAY;

D O I：

10.1016/j.ijhydene.2015.01.151

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：

Photocatalytic active material ZnS was grown on the surfaces of magnetic cores, Fe3O4 and NiCO2O4, by the solvothermal method to produce magnetically separable Fe3O4@ZnS and NiCo2O4@ZnS core-shell photocatalysts. These hydrogen production photocatalysts can be recycled by magnetic force for repeated hydrogen generation. The morphology, crystalline property, magnetic property, photocatalytic activity, and magnetic separation capability of the core-shell photocatalysts were studied. Fe3O4@ZnS based core-shell photocatalysts had better magnetic separation capability than the NiCo2O4@ZnS analog. The optimized photocatalytic hydrogen production rates of NiCo2O4@ZnS and Fe3O4 ZnS core shell nanoparticles reached 880 mu mol h(-1) g(-1) and 3900 mu mol h(-1) g(-1), respectively. Both photocatalysts can be recycled by magnetic force. Recycled photocatalysts exhibited good hydrogen generation performance after being recycled for three times. Copyright (C) 2015, Hydrogen Energy Publications, LLC. Published by Elsevier Ltd. All rights reserved.

引用

页码：11436 / 11443

页数：8

共 30 条

[21] Direct growth of NiCo2O4 nanostructures on conductive substrates with enhanced electrocatalytic activity and stability for methanol oxidation [J].