Ferroelectric-assisted enhancement of the photocatalytic activity of g-C 3 N 4 / TiO 2 nanotubes heterojunctions through the addition of strontium

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dc.authoridBerhault, Gilles/0000-0003-4424-3541en_US
dc.authorscopusid59008492400en_US
dc.authorscopusid59008281100en_US
dc.authorscopusid59008492500en_US
dc.authorscopusid59007478300en_US
dc.authorscopusid6601975294en_US
dc.authorscopusid7003355554en_US
dc.authorscopusid6602771938en_US
dc.contributor.authorAlsubaie, Modi Nasser
dc.contributor.authorAlabbad, Sanaa Saad
dc.contributor.authorAlrashidi, Wadha
dc.contributor.authorAlomair, Nuhad Abdullah
dc.contributor.authorKochkar, Hafedh
dc.contributor.authorBerhault, Gilles
dc.contributor.authorJomni, Fathi
dc.date.accessioned2024-08-23T16:04:42Z
dc.date.available2024-08-23T16:04:42Z
dc.date.issued2024en_US
dc.departmentDüzce Üniversitesien_US
dc.description.abstractThe effect of adding strontium to nanocomposites formed of g-C 3 N 4 /TiO 2 nanotubes (TiNT) (g-C 3 N 4 : 4.0 wt%) on the photocatalytic activity was herein investigated using formic acid as a model target pollutant. g-C 3 N 4 material was prepared by a solvothermal method using a mixture of urea and cyanuric chloride as precursors and acetonitrile as a solvent at 220 degrees C for 15 h, while TiNT material was obtained by the alkaline hydrothermal method of P25 at 130 degrees C for 20 h. A series of xSr-gC 3 N 4 /TiNT nanocomposites were then synthesized through progressive incorporation of strontium (from 0.2 to 1.0 wt%) at the surface of the composites. Samples were then characterized mainly using N 2 adsorption - desorption measurements, X-ray diffraction, UV - vis diffuse reflectance, Raman and photoluminescence (PL) spectroscopies, and scanning and transmission electron microscopy (with energy -dispersive X-ray spectroscopy and Z -mapping). The Sr -containing g-C 3 N 4 /TiNT composites were then also fully characterized by electrochemical impedance spectroscopy (EIS) for their dielectric properties, while a deep kinetics analysis was also performed. Such an approach allowed us to establish a correlation between photocatalytic performance and the material ' s propensity to be polarized. Results emphasize the beneficial role of ferroelectricity induced by adding strontium. Indeed, enhancement of the photocatalytic activity by 2.3 times compared to a Sr -free counterpart was related to the material ' s ability to be polarized for Sr loadings <= 0.6 wt%. At higher Sr loadings, supplementary factors (decrease of the anatase crystallinity, formation of TiO 2 (B), disruption of the g-C 3 N 4 /TiO 2 interaction, or lower mobility of photogenerated charges) negatively impact the activity, counterbalancing partly the beneficial ferroelectric effect. In this way, this study emphasizes the role played by ferroelectric effects in enhancing the photocatalytic ability of a given semiconductor.en_US
dc.description.sponsorshipMinistry of Education [IF-2020-018-BASRC]; Imam Abdulrahman Bin Faisal University, Basic and Applied Scientific Research Centeren_US
dc.description.sponsorshipThe authors would like to acknowledge the funding from the Ministry of Education grant number (IF-2020-018-BASRC) and Imam Abdulrahman Bin Faisal University, Basic and Applied Scientific Research Center, for their support.en_US
dc.identifier.doi10.1016/j.jphotochem.2024.115699
dc.identifier.issn1010-6030
dc.identifier.issn1873-2666
dc.identifier.scopus2-s2.0-85191714062en_US
dc.identifier.scopusqualityQ2en_US
dc.identifier.urihttps://doi.org/10.1016/j.jphotochem.2024.115699
dc.identifier.urihttps://hdl.handle.net/20.500.12684/14309
dc.identifier.volume454en_US
dc.identifier.wosWOS:001236270600001en_US
dc.identifier.wosqualityN/Aen_US
dc.indekslendigikaynakWeb of Scienceen_US
dc.indekslendigikaynakScopusen_US
dc.language.isoenen_US
dc.publisherElsevier Science Saen_US
dc.relation.ispartofJournal of Photochemistry And Photobiology A-Chemistryen_US
dc.relation.publicationcategoryMakale - Uluslararası Hakemli Dergi - Kurum Öğretim Elemanıen_US
dc.rightsinfo:eu-repo/semantics/closedAccessen_US
dc.subjectGraphitic carbon nitrideen_US
dc.subjectTiO2 nanotubeen_US
dc.subjectStrontiumen_US
dc.subjectPhotodegradationen_US
dc.subjectPolarisationen_US
dc.subjectGraphitic Carbon Nitrideen_US
dc.subjectQuantum Paraelectric Srtio3en_US
dc.subjectEnergy-Conversionen_US
dc.subjectG-C3n4 Nanosheetsen_US
dc.subjectHydrogenen_US
dc.subjectRamanen_US
dc.subjectNanostructuresen_US
dc.subjectDegradationen_US
dc.subjectSurfaceen_US
dc.subjectWateren_US
dc.titleFerroelectric-assisted enhancement of the photocatalytic activity of g-C 3 N 4 / TiO 2 nanotubes heterojunctions through the addition of strontiumen_US
dc.typeArticleen_US

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