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dc.contributor.authorKerkez-Kuyumcu, Ozge
dc.contributor.authorDayioglu, Kubra
dc.contributor.authorOzkara-Aydinoglu, Seyma
dc.contributor.authorGedik, Fadime
dc.contributor.authorKİBAR, MURAT EFGAN
dc.contributor.authorAKIN, AYŞE NİLGÜN
dc.date.accessioned2021-03-05T14:10:51Z
dc.date.available2021-03-05T14:10:51Z
dc.identifier.citationKerkez-Kuyumcu O., KİBAR M. E. , Dayioglu K., Gedik F., AKIN A. N. , Ozkara-Aydinoglu S., "A comparative study for removal of different dyes over M/TiO2 (M = Cu, Ni, Co, Fe, Mn and Cr) photocatalysts under visible light irradiation", JOURNAL OF PHOTOCHEMISTRY AND PHOTOBIOLOGY A-CHEMISTRY, cilt.311, ss.176-185, 2015
dc.identifier.issn1010-6030
dc.identifier.othervv_1032021
dc.identifier.otherav_b5e58fe3-4356-4c72-a639-ed9a673485de
dc.identifier.urihttp://hdl.handle.net/20.500.12627/121065
dc.identifier.urihttps://doi.org/10.1016/j.jphotochem.2015.05.037
dc.description.abstractThe purpose of this work is to design and develop a series of stable and effective TiO2 photocatalysts prepared by a modified precipitation method. In order to improve the photo response of the TiO2 to the visible region, the effect of addition of six successive transition metal elements of fourth period, namely chromium (Cr), manganese (Mn), iron (Fe), cobalt (Co), nickel (Ni), and copper (Cu) was studied. Two different types of dyes, methyl orange (MO, azo dye) and methylene blue (MB, thiazine dye group), were used to investigate the influence of structure of dyes on the photocatalytic degradation rates. The results showed that loading titania with 0.3 wt.% of different transition metal elements was found to have significant influences on the crystallographic structure, physical properties and optical absorption properties of titania based catalysts, as well as catalytic activity during dye degradation reactions. The optical reflection edge was obviously shifted to the visible light range with the transition metal additives. The band gap energies of the doped TiO2 samples were considerably narrower than that of plain TiO2. The different activity levels of the catalysts for both dyes clearly show that the photocatalytic activity of samples strongly depended on the metal dopant used. Among all the catalysts, Cu/TiO2 sample exhibited the highest photocatalytic activity under visible light for both of the dyes owing to the low band gap energy and delayed electron-hole recombination. (C) 2015 Elsevier B.V. All rights reserved.
dc.language.isoeng
dc.subjectKİMYA, FİZİKSEL
dc.subjectTemel Bilimler
dc.subjectFizikokimya
dc.subjectTemel Bilimler (SCI)
dc.subjectKimya
dc.titleA comparative study for removal of different dyes over M/TiO2 (M = Cu, Ni, Co, Fe, Mn and Cr) photocatalysts under visible light irradiation
dc.typeMakale
dc.relation.journalJOURNAL OF PHOTOCHEMISTRY AND PHOTOBIOLOGY A-CHEMISTRY
dc.contributor.departmentBeykent Üniversitesi , ,
dc.identifier.volume311
dc.identifier.startpage176
dc.identifier.endpage185
dc.contributor.firstauthorID225088


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