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An Efficient and Stable MoS 2 /Zn 0.5 Cd 0.5 S Nanocatalyst for Photocatalytic Hydrogen Evolution
Author(s) -
Liu Wenxiang,
Lu Lele,
Li Qiang,
Wu Boyuan,
Zhang Ruizhe,
Shi Wei,
Cheng Peng
Publication year - 2020
Publication title -
chemistry – a european journal
Language(s) - English
Resource type - Journals
SCImago Journal Rank - 1.687
H-Index - 242
eISSN - 1521-3765
pISSN - 0947-6539
DOI - 10.1002/chem.202000821
Subject(s) - photocatalysis , heterojunction , catalysis , materials science , hydrothermal circulation , hydrogen , hydrogen production , aqueous solution , chemical engineering , water splitting , photocatalytic water splitting , chemistry , optoelectronics , organic chemistry , engineering
Photocatalytic hydrogen evolution by water splitting is highly important for the application of hydrogen energy and the replacement of fossil fuel by solar energy, which needs the development of efficient catalysts with long‐term catalytic stability under light irradiation in aqueous solution. Herein, Zn 0.5 Cd 0.5 S solid solution was synthesized by a metal–organic framework‐templated strategy and then loaded with MoS 2 by a hydrothermal method to fabricate a MoS 2 /Zn 0.5 Cd 0.5 S heterojunction for photocatalytic hydrogen evolution. The composition of MoS 2 /Zn 0.5 Cd 0.5 S was fine‐tuned to obtain the optimized 5 wt % MoS 2 /Zn 0.5 Cd 0.5 S heterojunction, which showed a superior hydrogen evolution rate of 23.80 mmol h −1 g −1 and steady photocatalytic stability over 25 h. The photocatalytic performance is due to the appropriate composition and the formation of an intimate interface between MoS 2 and Zn 0.5 Cd 0.5 S, which endows the photocatalyst with high light‐harvesting ability and effective separation of photogenerated carriers.