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Construction of Hierarchical BiOI/MoS 2 /CdS Heterostructured Microspheres for Boosting Photocatalytic CO 2 Reduction Under Visible Light
Author(s) -
Li Ying,
Luo Huihua,
Bao Yunfeng,
Guo Siyao,
Lei Dongyi,
Chen Yan
Publication year - 2021
Publication title -
solar rrl
Language(s) - English
Resource type - Journals
SCImago Journal Rank - 2.544
H-Index - 37
ISSN - 2367-198X
DOI - 10.1002/solr.202100051
Subject(s) - photocatalysis , visible spectrum , materials science , charge carrier , chemical engineering , microsphere , nanotechnology , optoelectronics , absorption (acoustics) , photochemistry , catalysis , chemistry , composite material , organic chemistry , engineering
Efficient photocatalytic CO 2 reduction into clean chemical fuels using visible light remains an enormous challenge. Construction of hierarchical heterostructured photocatalysts has gained tremendous popularity due to their distinctive structural characteristics and synergetic effect that they can boost the visible‐light photoactivities. Based on this, a three‐step solvothermal method is proposed to construct hierarchical BiOI/MoS 2 /CdS heterostructured microspheres. The addition of MoS 2 and CdS not only plays a significant role in the improvement of visible‐light absorption, but also works as a carrier electron mediator, inhibiting the recombination of electrons–holes effectively. High CH 4 yield (46.22 μmol h −1 g −1 ) and CO yield (36.98 μmol h −1 g −1 ) are achieved for BiOI/MoS 2 /CdS‐0.03 heterostructured microspheres under simulated sunlight irradiation because of the wide solar light‐driven response, abundant active sites and high charge separation ability. Therefore, this study provides an efficient strategy for constructing heterostructured catalysts with remarkable visible‐light response photocatalytic CO 2 reduction activity.