Criss-crossed a-Fe2O3 nanorods/Bi2S3 heterojunction for enhanced photoelectrochemical water splitting

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dc.authoridKardas, Gulfeza/0000-0002-7871-6303
dc.authoridPaksoy, Halime O./0000-0003-3200-8595
dc.authoridtezcan, fatih/0000-0001-7656-3529
dc.contributor.authorTezcan, Fatih
dc.contributor.authorAhmad, Abrar
dc.contributor.authorYerlikaya, Gurbet
dc.contributor.authorZia-ur-Rehman, Guelfeza
dc.contributor.authorPaksoy, Halime
dc.contributor.authorKardas, Gulfeza
dc.date.accessioned2025-03-17T12:27:14Z
dc.date.available2025-03-17T12:27:14Z
dc.date.issued2022
dc.departmentTarsus Üniversitesi
dc.description.abstractIn this research work, alpha-Fe2O3/Bi2S3 heterojunction photoelectrodes for improved photoelectrochemical water splitting have been successfully fabricated on FTO substrate by applying hydrothermal and solvothermal approaches. A seed layer approach is also applied before the solvothermal step for the homogeneous distribution of Bi2S3 over alpha-Fe2O3 nanorods to obtain a uniform heterojunction. The physicochemical and optical techniques results of alpha-Fe2O3/Bi2S3 indicate high crystallinity, presence of two distant phases with different bandgap positions. Linear sweep voltammetry (LSV) results indicate that the optimized alpha-Fe2O3/Bi2S3 photoanode performs a maximum photocurrent density of 2.550 mA cm(-2) at 1.23 V-RHE which is almost 20 times higher than pristine alpha-Fe2O3 (0.123 mA cm(-2) at 1.23 V (RHE)). Electrochemical Impedance Spectroscopy (EIS) entirely shows alpha-Fe2O3/ Bi2S3.6 h is the lowest R-p (180.9 omega cm(2)) compare to pristine Fe2O3 (5810 omega cm(2)), indicating enhanced photo catalytic performance on OER and S2-/S-2(2-) cycle followed under 100 mW cm(-2) solar irradiation. This significant upsurge in the photocurrent density and applied biased photon-to-current conversion efficiency shown by the heterojunction is attributed to the improved light-harvesting efficiency, enhanced conductivity, and effective charge separation at the alpha-Fe2O3/Bi2S3 interface.
dc.description.sponsorshipScientific and Technological Research Council of Turkey (TUBITAK) 2216 Research fellowship program for foreign citizens and Scientific Research Projects Unit of Cukurova University [FBA-2019-12171]; Cukurova University
dc.description.sponsorshipThe author greatly acknowledges The Scientific and Technological Research Council of Turkey (TUBITAK) 2216 Research fellowship program for foreign citizens and Scientific Research Projects Unit (FBA-2019-12171) of Cukurova University for supporting this work.
dc.identifier.doi10.1016/j.fuel.2022.124477
dc.identifier.issn0016-2361
dc.identifier.issn1873-7153
dc.identifier.scopus2-s2.0-85129703109
dc.identifier.scopusqualityQ1
dc.identifier.urihttps://doi.org/10.1016/j.fuel.2022.124477
dc.identifier.urihttps://hdl.handle.net/20.500.13099/2137
dc.identifier.volume324
dc.identifier.wosWOS:000803712200003
dc.identifier.wosqualityQ1
dc.indekslendigikaynakWeb of Science
dc.indekslendigikaynakScopus
dc.language.isoen
dc.publisherElsevier Sci Ltd
dc.relation.ispartofFuel
dc.relation.publicationcategoryMakale - Uluslararası Hakemli Dergi - Kurum Öğretim Elemanı
dc.rightsinfo:eu-repo/semantics/closedAccess
dc.snmzKA_WOS_20250316
dc.subjectHematite
dc.subjectalpha-Fe2O3
dc.subjectBi2S3
dc.subjectHeterojunction
dc.subjectHydrogen production
dc.subjectPECs
dc.titleCriss-crossed a-Fe2O3 nanorods/Bi2S3 heterojunction for enhanced photoelectrochemical water splitting
dc.typeArticle

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