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AuthorM., Imran
AuthorYousaf, Ammar Bin
AuthorKasak, Peter
AuthorZeb, Akif
AuthorZaidi, Syed Javaid
Available date2023-04-05T08:58:26Z
Publication Date2017-09-30
Publication NameJournal of Catalysis
Identifierhttp://dx.doi.org/10.1016/j.jcat.2017.06.019
CitationImran, M., Yousaf, A. B., Kasak, P., Zeb, A., & Zaidi, S. J. (2017). Highly efficient sustainable photocatalytic Z-scheme hydrogen production from an α-Fe2O3 engineered ZnCdS heterostructure. Journal of Catalysis, 353, 81-88.
ISSN0021-9517
URIhttps://www.sciencedirect.com/science/article/pii/S0021951717302269
URIhttp://hdl.handle.net/10576/41695
AbstractWe present an α-Fe2O3/Zn0.4Cd0.6S heterostructure that shows visible light photocatalytic H2 production as high as 536.8μmolh−1 with apparent quantum efficiency of 11.2% at 420nm. The UV–vis diffuse reflectance spectra of as-synthesized α-Fe2O3/Zn0.4Cd0.6S heterostructure reveal efficient absorption in the visible region, which is a key factor in the enhanced catalytic activity. Moreover, the increase in charge separation efficiency of α-Fe2O3/Zn0.4Cd0.6S suggested by electrochemical impedance spectroscopy and photocurrent response also results in enhanced photocatalytic H2 production. The interface contact between α-Fe2O3 and Zn0.4Cd0.6S ascertained from HRTEM images promotes the recombination of photogenerated electrons from the conduction band of α-Fe2O3 and holes from the valence band of Zn0.4Cd0.6S, thus enhancing the utilization of solar light and increasing the efficiency. Our coupling approach to synthesizing an efficient Z-scheme photocatalyst provides insight into the design of further solar energy utilization photocatalysts.
Sponsor- USTC/Anhui Government Scholarships programme - CAS-TWAS President's Fellowship programme. - Qatar National Research Fund (a member of the Qatar Foundation) - grant # NPRP [9—219-2-105].
Languageen
PublisherElsevier
SubjectZ-scheme water splitting
Photocatalysis
Hydrogen production
α-Fe2O3
Zn0.4Cd0.6S
TitleHighly efficient sustainable photocatalytic Z-scheme hydrogen production from an α-Fe2O3 engineered ZnCdS heterostructure
TypeArticle
Pagination81-88
Volume Number353
ESSN1090-2694
dc.accessType Open Access


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