The Role of the Ferroelectric Polarization in the Enhancement of the Photocatalytic Response of Copper-Doped Graphene Oxide-TiO2 Nanotubes through the Addition of Strontium

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dc.authoridBerhault, Gilles/0000-0003-4424-3541
dc.contributor.authorAlomair, Nuhad Abdullah
dc.contributor.authorAl-Aqeel, Nouf Saleh
dc.contributor.authorAlabbad, Sanaa Saad
dc.contributor.authorKochkar, Hafedh
dc.contributor.authorBerhault, Gilles
dc.contributor.authorYounas, Muhammad
dc.contributor.authorJomni, Fathi
dc.date.accessioned2023-07-26T11:50:44Z
dc.date.available2023-07-26T11:50:44Z
dc.date.issued2023
dc.departmentDÜ, Mühendislik Fakültesi, Elektrik-Elektronik Mühendisliği Bölümüen_US
dc.description.abstractTo evaluate the potential role of in situ formed Sr-Ti-O species as a ferroelectric component able to enhance the photocatalytic properties of an adjacent TiO2 semiconductor, Cu-doped/graphene oxide (GO)/TiO2 nanotubes (TiNTs) composites (with 0.5 wt % Cu and 1.0 wt % GO) have been synthesized while progressive amounts of strontium (up to 1.0 wt %) were incorporated at the surface of the composite through incipient wetness impregnation followed by post-thermal treatment at 400 degrees C. The different resulting photocatalytic systems were then first deeply characterized by means of N2 adsorption-desorption measurements, X-ray diffraction (XRD), UV-vis diffuse reflectance (UV-vis DR), Raman and photoluminescence (PL) spectroscopies, and scanning electron microscopy (SEM) (with energy-dispersive X-ray (EDX) spectroscopy and Z-mapping). In a second step, optimization of the kinetic response of the Sr-containing composites was performed for the formic acid photodegradation under UV irradiation. The Sr-containing Cu/GO/TiNT composites were then fully characterized by electrochemical impedance spectroscopy (EIS) for their dielectric properties showing clearly the implication of polarization induced by the Sr addition onto the stabilization of photogenerated charges. Finally, a perfect correlation between the photocatalytic kinetic evaluation and dielectric properties undoubtedly emphasizes the role of ferroelectric polarization as a very valuable approach to enhance the photocatalytic properties in an adjacent semiconductor.en_US
dc.description.sponsorshipMinistry of Education [IF-2020-019-BASRC]; Imam Abdulrahman Bin Faisal University, Basic and Applied Scientific Research Centeren_US
dc.description.sponsorshipThe authors would like to acknowledge the funding from Ministry of Education (IF-2020-019-BASRC) and Imam Abdulrahman Bin Faisal University, Basic and Applied Scientific Research Center for their support.en_US
dc.identifier.doi10.1021/acsomega.2c06717
dc.identifier.issn2470-1343
dc.identifier.pmid36910964en_US
dc.identifier.scopus2-s2.0-85149036378en_US
dc.identifier.scopusqualityQ1en_US
dc.identifier.urihttps://doi.org/10.1021/acsomega.2c06717
dc.identifier.urihttps://hdl.handle.net/20.500.12684/12418
dc.identifier.wosWOS:000937480900001en_US
dc.identifier.wosqualityQ2en_US
dc.indekslendigikaynakWeb of Scienceen_US
dc.indekslendigikaynakPubMeden_US
dc.indekslendigikaynakScopusen_US
dc.institutionauthorErcan, İsmail
dc.language.isoenen_US
dc.publisherAmer Chemical Socen_US
dc.relation.ispartofAcs Omegaen_US
dc.relation.publicationcategoryMakale - Uluslararası Hakemli Dergi - Kurum Öğretim Elemanıen_US
dc.rightsinfo:eu-repo/semantics/openAccessen_US
dc.snmz$2023V1Guncelleme$en_US
dc.subjectTio2 Nanomaterials; Formic-Acid; Titanate Nanotubes; Thermal-Treatment; Surface; Hydrogen; Cu; Photodegradation; Degradation; Photoluminescenceen_US
dc.titleThe Role of the Ferroelectric Polarization in the Enhancement of the Photocatalytic Response of Copper-Doped Graphene Oxide-TiO2 Nanotubes through the Addition of Strontiumen_US
dc.typeArticleen_US

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