Publication:
Lanthanide doped bismuth tungstates: an investigation for led and photocatalysis applications

dc.contributor.departmentDepartment of Chemistry
dc.contributor.departmentDepartment of Chemistry
dc.contributor.departmentDepartment of Chemistry
dc.contributor.kuauthorAkkaya, Ceren Yılmaz
dc.contributor.kuauthorÜnal, Uğur
dc.contributor.kuprofileResearcher
dc.contributor.kuprofileFaculty Member
dc.contributor.schoolcollegeinstituteCollege of Sciences
dc.contributor.schoolcollegeinstituteCollege of Sciences
dc.contributor.yokidN/A
dc.contributor.yokid42079
dc.date.accessioned2024-11-09T23:53:24Z
dc.date.issued2018
dc.description.abstractIn this work, we studied optical, photocatalytic and photoelectrochemical properties of a series of lanthanide-doped double layered Aurivillius type bismuth oxides. The visible-light harvesting photocatalysts doped with Eu, Pr, Nd, Tm, Ho and Ce ions were synthesized by solid-state synthesis method. Doping amount was varied between 0.2-to-10 percent. X-ray diffraction (XRD) analysis revealed that lanthanide atoms were incorporated into the Bi2W2O9 lattice successfully up to 5%. Higher dopant ratios resulted in formation of secondary phases. Particles crystallized in micro-platelet morphology. Furthermore, luminescence of Pr3+ and Eu3+ ion doped catalysts are evaluated and the study showed that red emission intensity of Pr3+ doped powder is 29 times higher than that of Eu3+ doped ceramics. Lanthanide doped powders absorb in the visible regions. Especially, doping double layered bismuth oxide with Ce significantly narrowed down the band gap from ~3.3 eV to ~2.1 eV. Photoelectrochemical behaviour of the powders was also investigated and rare-earth dependent enhanced photocurrent production is demonstrated. Best photoelectrochemical response is achieved with Tm3+ ion doped sample.
dc.description.indexedbyTR Dizin
dc.description.issue4
dc.description.publisherscopeNational
dc.description.volume19
dc.identifier.doi10.18038/aubtda.412443
dc.identifier.eissn2667-4211
dc.identifier.urihttps://dx.doi.org/10.18038/aubtda.412443
dc.identifier.urihttps://hdl.handle.net/20.500.14288/15014
dc.keywordsPerovskite oxide
dc.keywordsLanthanides
dc.keywordsLuminescence
dc.keywordsPhotoelectrochemistry / Perovskite oksit
dc.keywordsLantanitler
dc.keywordsLüminesans
dc.keywordsFotoelektrokimya
dc.languageEnglish
dc.publisherEskişehir Teknik Üniversitesi
dc.sourceEskişehir Technical University Journal of Science and and Technology A- Applied Sciences and Engineering
dc.subjectChemistry
dc.subjectKimya
dc.titleLanthanide doped bismuth tungstates: an investigation for led and photocatalysis applications
dc.typeJournal Article
dspace.entity.typePublication
local.contributor.authorid0000-0003-3349-7984
local.contributor.authorid0000-0003-4718-1243
local.contributor.kuauthorAkkaya, Ceren Yılmaz
local.contributor.kuauthorÜnal, Uğur
relation.isOrgUnitOfPublication035d8150-86c9-4107-af16-a6f0a4d538eb
relation.isOrgUnitOfPublication.latestForDiscovery035d8150-86c9-4107-af16-a6f0a4d538eb

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