Titanium oxide nanotube film decorated with ?-Ga2O3 nanoparticles for enhanced water splitting properties

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dc.authoridJubu, Rex/0000-0002-5249-1273
dc.contributor.authorJubu, Peverga R.
dc.contributor.authorChahrour, Khaled M.
dc.contributor.authorYam, F. K.
dc.contributor.authorAwoji, O. M.
dc.contributor.authorYusof, Yushamdan
dc.contributor.authorChoo, Ee Bee
dc.date.accessioned2024-09-29T16:00:46Z
dc.date.available2024-09-29T16:00:46Z
dc.date.issued2022
dc.departmentKarabük Üniversitesien_US
dc.description.abstractTiO2 is a wide bandgap material with inherent photogenerated charge carrier recombination problems, which reduces its photoelectrochemical (PEC) water splitting efficiency. Considerable efforts have been dedicated to reducing this charge recombination problems by decorating the film's surface using transition metal nano particles (NP) to enhanced device performance. And considerable numbers of literature reports are available to this respect. However, reports are rare for the surface modification of TiO2 nanotubes (TNT) arrays with metal oxide, specially by beta-Ga2O3 nanostructures and its potential applications. Herein, the PEC water splitting properties of beta-Ga2O3 NP (GNP)-modified TNT arrays is described. The TNT were synthesized by anodization, whereas the GNP were fabricated by chemical vapour deposition method. X-ray diffraction (XRD) results revealed the presence of weak beta-Ga2O3 peaks and reduction in crystallite size upon GNP addition. The integration of GNP on the TNT arrays resulted in a slight increase in optical bandgap from 3.4 to 3.6 eV observed by UV-vis measurements. Linear sweep voltammetry measurement for the modified TNT photocatalyst showed a 32.5% enhancement in photocurrent density compared to the bare TNT photoelectrode, measured in 1 M HCl solution. Elemental analysis confirmed the presence of beta-Ga2O3 , thereby supporting the XRD and UV-vis results. This study demonstrates that GNP-activated TNT arrays could be used as photoanode for enhanced photocatalytic activity in the PEC cell.en_US
dc.description.sponsorshipMinistry of Higher Education Malaysia [FRGS/1/2020/STG05/USM/02/4]; Universiti Sains Malaysia (USM)en_US
dc.description.sponsorshipAcknowledgment The authors would like to thank and acknowledge Ministry of Higher Education Malaysia for Fundamental Research Grant Scheme with Reference Code: (FRGS/1/2020/STG05/USM/02/4) , and Universiti Sains Malaysia (USM) for financial and technical support for this work.en_US
dc.identifier.doi10.1016/j.solener.2022.02.033
dc.identifier.endpage162en_US
dc.identifier.issn0038-092X
dc.identifier.issn1471-1257
dc.identifier.scopus2-s2.0-85125339092en_US
dc.identifier.scopusqualityQ1en_US
dc.identifier.startpage152en_US
dc.identifier.urihttps://doi.org/10.1016/j.solener.2022.02.033
dc.identifier.urihttps://hdl.handle.net/20.500.14619/5330
dc.identifier.volume235en_US
dc.identifier.wosWOS:000788745000005en_US
dc.identifier.wosqualityQ2en_US
dc.indekslendigikaynakWeb of Scienceen_US
dc.indekslendigikaynakScopusen_US
dc.language.isoenen_US
dc.publisherPergamon-Elsevier Science Ltden_US
dc.relation.ispartofSolar Energyen_US
dc.relation.publicationcategoryMakale - Uluslararası Hakemli Dergi - Kurum Öğretim Elemanıen_US
dc.rightsinfo:eu-repo/semantics/closedAccessen_US
dc.subjectbeta-Ga2O3 nanoparticlesen_US
dc.subjectPhotoelectrochemical water splittingen_US
dc.subjectMetal oxideen_US
dc.subjectTiO2 nanotubesen_US
dc.titleTitanium oxide nanotube film decorated with ?-Ga2O3 nanoparticles for enhanced water splitting propertiesen_US
dc.typeArticleen_US

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