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Supporting Ultrathin ZnIn 2 S 4 Nanosheets on Co/N‐Doped Graphitic Carbon Nanocages for Efficient Photocatalytic H 2 Generation
Author(s) -
Wang Sibo,
Wang Yan,
Zhang Song Lin,
Zang ShuangQuan,
Lou Xiong Wen David
Publication year - 2019
Publication title -
advanced materials
Language(s) - English
Resource type - Journals
SCImago Journal Rank - 10.707
H-Index - 527
eISSN - 1521-4095
pISSN - 0935-9648
DOI - 10.1002/adma.201903404
Subject(s) - nanocages , materials science , photocatalysis , heterojunction , nanoparticle , carbon fibers , chemical engineering , doping , composite number , nanotechnology , visible spectrum , water splitting , charge carrier , optoelectronics , catalysis , composite material , organic chemistry , chemistry , engineering
Ultrathin ZnIn 2 S 4 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@ZnIn 2 S 4 hollow heterostructures for photocatalytic H 2 generation with visible light. The photoredox functions of discrete Co, conductive NGC, and ZnIn 2 S 4 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@ZnIn 2 S 4 photocatalyst exhibits outstanding H 2 evolution activity (e.g., 11270 µmol h −1 g −1 ) and high stability without engaging any cocatalyst.