Show simple item record

AuthorYousaf, Ammar Bin
AuthorImran, M.
AuthorZaidi, Syed Javaid
AuthorKasak, Peter
Available date2020-09-03T08:58:10Z
Publication Date2017
Publication NameScientific Reports
ResourceScopus
ISSN20452322
URIhttp://dx.doi.org/10.1038/s41598-017-06808-6
URIhttp://hdl.handle.net/10576/15923
AbstractThe demand for clean renewable energy is increasing due to depleting fossil fuels and environmental concerns. Photocatalytic hydrogen production through water splitting is one such promising route to meet global energy demands with carbon free technology. Alternative photocatalysts avoiding noble metals are highly demanded. Herein, we fabricated heterostructure consist of oxygen-deficient WO3-x nanorods with Zn0.3Cd0.7S nanoparticles for an efficient Z-Scheme photocatalytic system. Our as obtained heterostructure showed photocatalytic H2 evolution rate of 352.1 ?mol h-1 with apparent quantum efficiency (AQY) of 7.3% at ? = 420 nm. The photocatalytic hydrogen production reaches up to 1746.8 ?mol after 5 hours process in repeatable manner. The UV-Visible diffuse reflectance spectra show strong absorption in the visible region which greatly favors the photocatalytic performance. Moreover, the efficient charge separation suggested by electrochemical impedance spectroscopy and photocurrent response curves exhibit enhancement in H2 evolution rate. The strong interface contact between WO3-x nanorods and Zn0.3Cd0.7S nanoparticles ascertained from HRTEM images also play an important role for the emigration of electron. Our findings provide possibilities for the design and development of new Z-scheme photocatalysts for highly efficient hydrogen production. 1 2017 The Author(s).
Languageen
PublisherNature Publishing Group
SubjectOxynitrides
Water Splitting
Photocatalysts
TitleHighly efficient photocatalytic z-scheme hydrogen production over oxygen-deficient WO3-x nanorods supported Zn0.3Cd0.7S heterostructure
TypeArticle
Issue Number1
Volume Number7
dc.accessType Open Access


Files in this item

Thumbnail

This item appears in the following Collection(s)

Show simple item record