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Synergistic effects of ThO2 on g-C3N4/BiVO4 heterojunctions for enhanced photoelectrochemical (PEC) water splitting

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dc.citedby7
dc.contributor.authorMohamed N.A.en_US
dc.contributor.authorIsmail A.F.en_US
dc.contributor.authorKiong T.S.en_US
dc.contributor.authorMat Teridi M.A.en_US
dc.contributor.authorid57201821340en_US
dc.contributor.authorid29067828200en_US
dc.contributor.authorid57216824752en_US
dc.contributor.authorid12801271200en_US
dc.date.accessioned2025-03-03T07:44:25Z
dc.date.available2025-03-03T07:44:25Z
dc.date.issued2024
dc.description.abstractIn this study, we unveil a groundbreaking approach, incorporating dopants and engineering heterojunctions, to craft an exceptional g-C3N4/ThO2@BiVO4 photoanode through a two-step process of methanolic dispersion spin-coating followed by electrodeposition (ED) method. The PEC cells utilizing the g-C3N4/ThO2@BiVO4 heterojunction photoanode outperform both the g-C3N4/BiVO4 and standalone BiVO4, with the g-C3N4/ThO2@BiVO4 achieving a notably enhanced photocurrent density of 0.45 mA cm?2 at 1.23 V vs. RHE. This signifies a substantial improvement over the photocurrent densities of 0.32 mA cm?2 and 0.21 mA cm?2 attained by the g-C3N4/BiVO4 and BiVO4 photoanodes, respectively. Exhibiting a distinctive dual-nanostructure morphology, the deposited g-C3N4/ThO2@BiVO4 photoelectrode constructs a 'spongy' and 'needle-like' nanoflower architecture, ultimately converging into a densely packed agglomerate. The incorporation of Oxygen and about 5.8% Th4+- doping not only induces noteworthy photostability but also amplifies charge transfer efficiency while concurrently mitigating charge recombination within the g-C3N4/ThO2@BiVO4 photoanode, achieved through the creation of defects, as elucidated in XPS and Raman analyses. Our in-depth exploration highlights the exceptional performance and photostability of the g-C3N4/ThO2@BiVO4 photoanode, establishing it as an auspicious candidate for applications in photoelectrochemical (PEC) water splitting. ? 2024 Hydrogen Energy Publications LLCen_US
dc.description.natureFinalen_US
dc.identifier.doi10.1016/j.ijhydene.2024.02.110
dc.identifier.epage1079
dc.identifier.scopus2-s2.0-85187304681
dc.identifier.spage1063
dc.identifier.urihttps://www.scopus.com/inward/record.uri?eid=2-s2.0-85187304681&doi=10.1016%2fj.ijhydene.2024.02.110&partnerID=40&md5=bec057bb1e0281c40dc5a8f4d02a07df
dc.identifier.urihttps://irepository.uniten.edu.my/handle/123456789/36753
dc.identifier.volume59
dc.pagecount16
dc.publisherElsevier Ltden_US
dc.sourceScopus
dc.sourcetitleInternational Journal of Hydrogen Energy
dc.titleSynergistic effects of ThO2 on g-C3N4/BiVO4 heterojunctions for enhanced photoelectrochemical (PEC) water splittingen_US
dc.typeArticleen_US
dspace.entity.typePublication
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