Publication: Lanthanide doped bismuth tungstates: an investigation for led and photocatalysis applications
dc.contributor.department | Department of Chemistry | |
dc.contributor.department | Department of Chemistry | |
dc.contributor.department | Department of Chemistry | |
dc.contributor.kuauthor | Akkaya, Ceren Yılmaz | |
dc.contributor.kuauthor | Ünal, Uğur | |
dc.contributor.kuprofile | Researcher | |
dc.contributor.kuprofile | Faculty Member | |
dc.contributor.schoolcollegeinstitute | College of Sciences | |
dc.contributor.schoolcollegeinstitute | College of Sciences | |
dc.contributor.yokid | N/A | |
dc.contributor.yokid | 42079 | |
dc.date.accessioned | 2024-11-09T23:53:24Z | |
dc.date.issued | 2018 | |
dc.description.abstract | In 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.indexedby | TR Dizin | |
dc.description.issue | 4 | |
dc.description.publisherscope | National | |
dc.description.volume | 19 | |
dc.identifier.doi | 10.18038/aubtda.412443 | |
dc.identifier.eissn | 2667-4211 | |
dc.identifier.uri | https://dx.doi.org/10.18038/aubtda.412443 | |
dc.identifier.uri | https://hdl.handle.net/20.500.14288/15014 | |
dc.keywords | Perovskite oxide | |
dc.keywords | Lanthanides | |
dc.keywords | Luminescence | |
dc.keywords | Photoelectrochemistry / Perovskite oksit | |
dc.keywords | Lantanitler | |
dc.keywords | Lüminesans | |
dc.keywords | Fotoelektrokimya | |
dc.language | English | |
dc.publisher | Eskişehir Teknik Üniversitesi | |
dc.source | Eskişehir Technical University Journal of Science and and Technology A- Applied Sciences and Engineering | |
dc.subject | Chemistry | |
dc.subject | Kimya | |
dc.title | Lanthanide doped bismuth tungstates: an investigation for led and photocatalysis applications | |
dc.type | Journal Article | |
dspace.entity.type | Publication | |
local.contributor.authorid | 0000-0003-3349-7984 | |
local.contributor.authorid | 0000-0003-4718-1243 | |
local.contributor.kuauthor | Akkaya, Ceren Yılmaz | |
local.contributor.kuauthor | Ünal, Uğur | |
relation.isOrgUnitOfPublication | 035d8150-86c9-4107-af16-a6f0a4d538eb | |
relation.isOrgUnitOfPublication.latestForDiscovery | 035d8150-86c9-4107-af16-a6f0a4d538eb |