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AuthorImran M.
AuthorBin Yousaf A.
AuthorFarooq M.
AuthorKasak P.
Available date2020-01-01T10:25:02Z
Publication Date2018
Publication NameInternational Journal of Hydrogen Energy
AbstractDepletion of fossil fuels and associated environmental issues has drawn attention of researchers to renewable energy resources and photocatalytic hydrogen production is considered to be safe and applicable method to meet future energy demand. Herein, we have used ?-Bi 2 O 3 nanorods for loading CZS (Cd 0.5 Zn 0.5 S) to form a heterostructure for photocatalytic H 2 production. The ?-Bi 2 O 3 /CZS heterostructure was characterized through TEM, Elemental Mapping, XRD and XPS analysis. The ?-Bi 2 O 3 /CZS heterostructure shows photocatalytic H 2 production rate of 254.1 ?mol h ?1 with apparent quantum yield of 6.8% (? = 420 nm). The enhanced photocatalytic performance was supported by transient photocurrent response curves and electrochemical impedance spectroscopy (EIS) results which suggest the efficient charge separation and electron mobility in ?-Bi 2 O 3 /CZS heterostructure. The intimate contact formed between ?-Bi 2 O 3 nanorods and CZS nanoparticles responsible for the efficient flow of electrons following a Z-scheme pattern resulting in higher photocatalytic H 2 production. Moreover, the as-synthesized ?-Bi 2 O 3 /CZS heterostructure shows negligible loss of activity after 4 consecutive recycling cycles. Our findings open new possibilities for the design of heterostructure based photocatalysts. - 2018 Hydrogen Energy Publications LLC
SponsorThis work was made possible by NPRP grant #9-219-2-105 from the Qatar National Research Fund (A Member of The Qatar Foundation) . The authors also acknowledge financial support from USTC /Anhui Government Scholarships programme and CAS-TWAS President's Fellowship programme . The finding achieved herein is solely the responsibility of the authors. Appendix A
PublisherElsevier Ltd
SubjectBismuth oxide
SubjectHydrogen production
SubjectZinc-cadmium sulphide
TitleEnhanced Z-scheme visible light photocatalytic hydrogen production over ?-Bi 2 O 3 /CZS heterostructure
Issue Number9
Volume Number43

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