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CdS‐Nanoparticles‐Decorated Perpendicular Hybrid of MoS 2 and N‐Doped Graphene Nanosheets for Omnidirectional Enhancement of Photocatalytic Hydrogen Evolution
Author(s) -
Zhang Shuqu,
Wang Longlu,
Zeng Yunxiong,
Xu Yuzi,
Tang Yanhong,
Luo Shenglian,
Liu Yutang,
Liu Chengbin
Publication year - 2016
Publication title -
chemcatchem
Language(s) - English
Resource type - Journals
SCImago Journal Rank - 1.497
H-Index - 106
eISSN - 1867-3899
pISSN - 1867-3880
DOI - 10.1002/cctc.201600388
Subject(s) - photocatalysis , materials science , graphene , nanoparticle , charge carrier , hydrogen production , water splitting , visible spectrum , catalysis , chemical engineering , doping , absorption (acoustics) , nanotechnology , hydrogen , photochemistry , optoelectronics , chemistry , composite material , organic chemistry , engineering
A new hierarchical nanoarchitecture with integration of multiple active materials has been developed for highly efficient hydrogen evolution reaction (HER), by decorating a perpendicular hybrid of MoS 2 and N‐doped graphene nanosheets with CdS nanoparticles. The unique architecture promoted light trapping and absorption for highly efficient light harvesting and photocarrier generation, and offered an unblocked electron transport pathway for rapid charge separation/transport to suppress charge recombination. Its high surface area and high density of active sites result in highly efficient utilization of photogenerated carriers for productive HER. Significantly, without using noble metals as co‐catalysts, the photocatalysts demonstrated rapid HER rates as high as 5.01 mmol h −1 g −1 under visible‐light irradiation, which was approximately 25 times that of pure CdS. The hydrogen production remained stable after a continued test for 30 h, showing an exceedingly high performance and superior stability.