Publication:
Enhanced photocatalytic properties of restacked unilamellar [SrTa(2)O7](2-) nanosheets of aurivillius phase layered perovskites

dc.contributor.coauthorFiroozi, Sadegh
dc.contributor.coauthorHaghshenas, Davoud Fatmehsari
dc.contributor.departmentDepartment of Chemistry
dc.contributor.departmentGraduate School of Sciences and Engineering
dc.contributor.departmentKUTEM (Koç University Tüpraş Energy Center)
dc.contributor.departmentKUYTAM (Koç University Surface Science and Technology Center)
dc.contributor.kuauthorKhodabakhsh, Mohammadreza
dc.contributor.kuauthorÜnal, Uğur
dc.contributor.kuauthorYılmaz, Bengisu
dc.contributor.schoolcollegeinstituteCollege of Sciences
dc.contributor.schoolcollegeinstituteGRADUATE SCHOOL OF SCIENCES AND ENGINEERING
dc.contributor.schoolcollegeinstituteResearch Center
dc.date.accessioned2024-11-10T00:01:08Z
dc.date.issued2023
dc.description.abstractIn the present work, unilamellar [SrTa(2)O7](2-) perovskite nanosheets with variable lateral dimensions were synthesized via a high-yield, three-step liquid exfoliation route from layered Bi2SrTa2O9. The photocatalytic activity of the parent and exfoliated layered perovskites was evaluated for the photocatalytic dye degradation of Rhodamine B under UV light (254 nm) and reduction of water to H-2 under the full solar spectrum. A comparative study of the photocatalytic behavior of unilamellar [SrTa(2)O7](2-) perovskite nanosheets and parent layered structure showed a significant improvement in both hydrogen evolution (98.20 vs 3 mu mol g(-1)) and Rhodamine B degradation time (180 vs 30 min), with the restacked nanosheets. The exfoliation of layered perovskites not only increases their specific surface area, providing more active sites, but also reduces the recombination probability of electrons and holes due to their unilamellar structure and reduced charge transport pathways. The synthesis and preparation of strong acid solids such as [SrTa(2)O7](2-) perovskite nanosheets can be a promising approach for effective adsorption of pollutants with cationic nature and more efficient electron transfer between the dye and catalyst. Finally, the photocatalytic characteristics of the restacked unilamellar [SrTa(2)O7](2-) nanosheets remained unchanged after three successive cycles of recycling-reusing.
dc.description.indexedbyWOS
dc.description.indexedbyScopus
dc.description.indexedbyPubMed
dc.description.issue11
dc.description.openaccessNO
dc.description.publisherscopeInternational
dc.description.sponsoredbyTubitakEuN/A
dc.description.sponsorshipScientific and Technological Research Council of Turkey (TUBITAK) [119N625]
dc.description.sponsorshipMinistry of Science and Technology of Iran (MSRT) [99-24-800]
dc.description.sponsorshipTabriz University The work in this paper was carried out under the first TUBITAK- MSRT Joint Call. The authors would like to acknowledge the sponsorship provided by the Scientific and Technological Research Council of Turkey (TUBITAK
dc.description.sponsorshipProject No. 119N625) and the Ministry of Science and Technology of Iran (MSRT
dc.description.sponsorshipProject No. 99-24-800) . The financial support of Tabriz University is also gratefully acknowledged.
dc.description.volume8
dc.identifier.doi10.1021/acsomega.3c00593
dc.identifier.issn2470-1343
dc.identifier.quartileQ2
dc.identifier.scopus2-s2.0-85149866001
dc.identifier.urihttps://doi.org/10.1021/acsomega.3c00593
dc.identifier.urihttps://hdl.handle.net/20.500.14288/15921
dc.identifier.wos949200700001
dc.keywordsRhodamine-B
dc.keywordsCation disorder
dc.keywordsProtonated form
dc.keywordsDegradation
dc.keywordsOxide
dc.language.isoeng
dc.publisherAmerican Chemical Society (ACS)
dc.relation.ispartofACS Omega
dc.subjectChemistry
dc.titleEnhanced photocatalytic properties of restacked unilamellar [SrTa(2)O7](2-) nanosheets of aurivillius phase layered perovskites
dc.typeJournal Article
dspace.entity.typePublication
local.contributor.kuauthorKhodabakhsh, Mohammadreza
local.contributor.kuauthorYılmaz, Bengisu
local.contributor.kuauthorÜnal, Uğur
local.publication.orgunit1College of Sciences
local.publication.orgunit1GRADUATE SCHOOL OF SCIENCES AND ENGINEERING
local.publication.orgunit1Research Center
local.publication.orgunit2Department of Chemistry
local.publication.orgunit2KUTEM (Koç University Tüpraş Energy Center)
local.publication.orgunit2KUYTAM (Koç University Surface Science and Technology Center)
local.publication.orgunit2Graduate School of Sciences and Engineering
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