DOI: 10.1016/j.jcou.2018.12.009
Scopus记录号: 2-s2.0-85058824340
论文题名: Construction of octahedral BiFeWOx encapsulated in hierarchical In 2 S 3 core@shell heterostructure for visible-light-driven CO 2 reduction
作者: Wang Y. ; Zeng Y. ; Wan S. ; Zhang S. ; Zhong Q.
刊名: Journal of CO2 Utilization
ISSN: 22129820
出版年: 2019
卷: 29 起始页码: 156
结束页码: 162
语种: 英语
英文关键词: BiFeWOx
; CO 2 photoreduction
; Core-shell structure
; Heterojunction
; In 2 S 3
Scopus关键词: Bismuth compounds
; Carbon dioxide
; Catalyst activity
; Heterojunctions
; Indium sulfide
; Light
; Redox reactions
; Reduction
; Shells (structures)
; Surface reactions
; BiFeWOx
; Chemical and physical characteristics
; Core shell structure
; Core-shell heterostructures
; Electrochemical measurements
; In2S3
; Photo-reduction
; Photoinduced charge carriers
; Iron compounds
英文摘要: Novel 3D BiFeWOx@In 2 S 3 (BFW@IS-x) core shell heterostructures were rationally designed and fabricated to be used as efficient photocatalysts for CO 2 photoreduction. The constructive strategy integrated nano-octahedral BFW and hierarchical IS by growing IS ultrathin nanosheet subunits on surface of BFW. The proposed in site synthesis route resulted in a high dispersion of BFW nanocrystals and the tight interaction between BFW and IS. The obtained core-shell heterostructure boosted separation and transfer of photoinduced charge carriers, evidenced by electrochemical measurement. The hierarchical structure on the surface of BFW@IS-x catalyst enhanced light harvest and provided ample active sites for surface redox reactions. Profiting from these extraordinary chemical and physical characteristics owing to the interaction between BFW and IS, the efficiency of photo-conversion of CO 2 to CH 4 and CO over BFW@IS-1 heterostructures with optimal proportion was 49.9 μmol h -1 g -1 and 28.9 μmol h -1 g -1 , respectively, under visible light irradiation. The CH 4 generated rate was about 3.5 and 6.4 times higher than that of pure IS and BFW, and CO generated rates was 4.9 times higher than that of pure IS, respectively. The possible mechanism for the CO 2 reduction over BFW@IS-1 composite was discussed. © 2018 Published by Elsevier Ltd. Citation statistics:
资源类型: 期刊论文
标识符: http://119.78.100.158/handle/2HF3EXSE/117317
Appears in Collections: 气候变化与战略
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Recommended Citation:
Wang Y.,Zeng Y.,Wan S.,et al. Construction of octahedral BiFeWOx encapsulated in hierarchical In 2 S 3 core@shell heterostructure for visible-light-driven CO 2 reduction[J]. Journal of CO2 Utilization,2019-01-01,29