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|Title:||Construction of hole-transported MoO₃₋ₓ coupled with CdS nanospheres for boosting photocatalytic performance via oxygen-defects-mediated Z-scheme charge transfer||Authors:||Wu, Yan
Chew, Jia Wei
|Keywords:||Engineering::Chemical engineering||Issue Date:||2019||Source:||Wu, Y., Wang, H., Tu, W., Wu, S. & Chew, J. W. (2019). Construction of hole-transported MoO₃₋ₓ coupled with CdS nanospheres for boosting photocatalytic performance via oxygen-defects-mediated Z-scheme charge transfer. Applied Organometallic Chemistry, 33(4), e4780-. https://dx.doi.org/10.1002/aoc.4780||Project:||SGP-PROG3-019
|Journal:||Applied Organometallic Chemistry||Abstract:||The establishment of Z-scheme charge transfer between semiconductors is an effective method to improve the performance of hybridized semiconductor photocatalysts. Herein, the novel photocatalysts consisting of MoO₃₋ₓ and varying amounts of cadmium sulfide (CdS) nanospheres were successfully prepared via the one-pot hydrothermal method in the presence of polyvinylpyrrolidone (PVP). It is indicated that the PVP not only served as the reducing agent for the formation of oxygen defects in MoO₃₋ₓ, but also the cross-linking agent for the coupling between MoO₃₋ₓ and CdS. The CdS/MoO₃₋ₓ composite allowed for higher visible-light photocatalytic performance for enhanced removal of methylene blue and tetracycline with an efficiency of 97.6% and 85.5%, respectively. The improved performance of the CdS/MoO₃₋ₓ composite was found to be mainly attributable to the remarkable charge carrier separation and transfer between CdS and MoO₃₋ₓ based on the favorable hole-transporting nature and oxygen deficiencies of MoO₃₋ₓ. In addition, the hole-oxidized photocorrosion of CdS was efficiently suppressed due to the presence of hole-attractive MoO₃₋ₓ. At the solid interface, an oxygen-defects-mediated Z-scheme charge carrier transfer pathway was proposed as the underlying mechanism for the superior photocatalytic reaction.||URI:||https://hdl.handle.net/10356/151560||ISSN:||0268-2605||DOI:||10.1002/aoc.4780||Rights:||© 2019 John Wiley & Sons, Ltd. All rights reserved.||Fulltext Permission:||none||Fulltext Availability:||No Fulltext|
|Appears in Collections:||SCBE Journal Articles|
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