Supporting ultrathin ZnIn2 S4 nanosheets on Co/N-doped graphitic carbon nanocages for efficient photocatalytic H2 generation

Supporting ultrathin ZnIn2 S4 nanosheets on Co/N-doped graphitic carbon nanocages for efficient photocatalytic H2 generation

Ultrathin ZnIn2 S4 nanosheets (NSs) are grown on Co/N-doped graphitic carbon (NGC) nanocages, composed of Co nanoparticles surrounded by few-layered NGC, to obtain hierarchical Co/NGC@ZnIn2 S4 hollow heterostructures for photocatalytic H2 generation with visible light. The photoredox functions of di...

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Bibliographic Details
Main Authors: Wang, Sibo, Wang, Yan, Zhang, Song Lin, Zang, Shuang-Quan, Lou, David Xiong Wen
Other Authors: School of Chemical and Biomedical Engineering
Format: Article
Language:English
Published: 2020
Subjects:
Engineering::Chemical engineering
Hollow Structures
Hydrogen Evolution
Online Access:https://hdl.handle.net/10356/138636
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Institution: Nanyang Technological University
Language: English
Description
Summary:Ultrathin ZnIn2 S4 nanosheets (NSs) are grown on Co/N-doped graphitic carbon (NGC) nanocages, composed of Co nanoparticles surrounded by few-layered NGC, to obtain hierarchical Co/NGC@ZnIn2 S4 hollow heterostructures for photocatalytic H2 generation with visible light. The photoredox functions of discrete Co, conductive NGC, and ZnIn2 S4 NSs are precisely combined into hierarchical composite cages possessing strongly hybridized shell and ultrathin layered substructures. Such structural and compositional virtues can expedite charge separation and mobility, offer large surface area and abundant reactive sites for water photosplitting. The Co/NGC@ZnIn2 S4 photocatalyst exhibits outstanding H2 evolution activity (e.g., 11270 µmol h-1 g-1 ) and high stability without engaging any cocatalyst.

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