Premium
Construction of SnS 2 –SnO 2 heterojunctions decorated on graphene nanosheets with enhanced visible‐light photocatalytic performance
Author(s) -
Huang Ruting,
Wu Chenghao,
Huang Shoushuang,
Chen Dayong,
Zhang Qian,
Wang Qing,
Hu Zhangjun,
Jiang Yong,
Zhao Bing,
Chen Zhiwen
Publication year - 2019
Publication title -
acta crystallographica section c
Language(s) - English
Resource type - Journals
SCImago Journal Rank - 0.304
H-Index - 17
ISSN - 2053-2296
DOI - 10.1107/s2053229619006399
Subject(s) - heterojunction , photocatalysis , graphene , materials science , rhodamine b , visible spectrum , hydrothermal circulation , nanotechnology , degradation (telecommunications) , absorption (acoustics) , optoelectronics , chemical engineering , composite material , catalysis , chemistry , electronic engineering , biochemistry , engineering
Heterostructures formed by the growth of one kind of nanomaterial in/on another have attracted increasing attention due to their microstructural characteristics and potential applications. In this work, SnS 2 –SnO 2 heterostructures were successfully prepared by a facile hydrothermal method. Due to the enhanced visible‐light absorption and efficient separation of photo‐generated holes and electrons, the SnS 2 –SnO 2 heterostructures display excellent photocatalytic performance for the degradation of rhodamine (RhB) under visible‐light irradiation. Additionally, it is found that the introduction of graphene into the heterostructures further improved photocatalytic activity and stability. In particular, the optimized SnS 2 –SnO 2 /graphene photocatalyst can degrade 97.1% of RhB within 60 min, which is about 1.38 times greater than that of SnS 2 –SnO 2 heterostructures. This enhanced photocatalytic activity could be attributed to the high surface area and the excellent electron accepting and transporting properties of graphene, which served as an acceptor of the generated electrons to suppress charge recombination. These results provide a new insight for the design and development of hybrid photocatalysts.