Synthesis of novel tetrazine based D-pi-A organic dyes for photoelectrochemical and photocatalytic hydrogen evolution

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dc.contributor.authorAslan, Emre.
dc.contributor.authorKaraman, Merve.
dc.contributor.authorYanalak, Gizem.
dc.contributor.authorBilgili, Hakan.
dc.contributor.authorCan, Mustafa.
dc.contributor.authorOzel, Faruk.
dc.contributor.authorPatir, Imren Hatay.
dc.date.accessioned2020-03-26T20:20:30Z
dc.date.available2020-03-26T20:20:30Z
dc.date.issued2020
dc.departmentSelçuk Üniversitesi, Fen Fakültesi, Kimya Bölümüen_US
dc.description.abstractTwo novel donor-pi-acceptor (D-pi-A) dyes, called as MK-2 and MK-8, are synthesized. Their structural, optical and electrochemical properties are investigated by NMR, absorption/photoluminescence spectroscopies and cyclic voltammetry techniques, respectively. Photocatalytic and photoelectrochemical hydrogen evolution properties of these D-pi-A dyes are explored by using triethanolamine (TEOA) as a sacrificial electron donor under anaerobic conditions and visible light irradiation with or without co-catalysts (Cu2WS4 and Pt) for the first time. Photoelectrochemical and photocatalytic hydrogen evolution reaction (HER) activities of these dyes are studied by using TiO2 coated FTO electrodes and powdered TiO2 (Degussa P25), respectively. Photoelectrochemical response of MK-2/TiO2 and MK-8/TiO2 are figured out in the order of 180 mu A cm(-1) and 80 A cm(-1). The photocatalytic hydrogen evolution amounts of MK-2/TiO2, MK-2/TiO2/Cu2WS4, MK-2/TiO2/Pt, MK-8/TiO2, MK-8/TiO2/Cu2WS4 and MK-8/TiO2/Pt are turned out to be 565, 920, 1828, 374, 522 and 1260 mu molg(-1) h(-1), respectively. Dye/TiO2 photocatalysts are displayed good stability in the both photochemical HER experiments. The alteration in the HER activities of MK-2 and MK-8 is explained by molecule structures of dyes. The proposed mechanism of photocatalytic hydrogen evolution is clarified by using electrochemical band levels of each constituent.en_US
dc.description.sponsorshipTurkish Academy of Sciences via a TUBA-GEBIP fellowship; UNESCO-Loreal; Scientific and Technological Research Council of Turkey (TUBITAK)Turkiye Bilimsel ve Teknolojik Arastirma Kurumu (TUBITAK) [215M309]en_US
dc.description.sponsorshipThis article has been funded by Turkish Academy of Sciences via a TUBA-GEBIP fellowship, UNESCO-Loreal and The Scientific and Technological Research Council of Turkey (TUBITAK) (215M309). This study is prepared by part of Emre Asian's Ph.D thesis.en_US
dc.identifier.citationAslan, E., Karaman, M., Yanalak, G., Bilgili, H., Can, M., Ozel, F., Patir, I. H. (2020). Synthesis of Novel Tetrazine based D-π-A Organic Dyes for Photoelectrochemical and Photocatalytic Hydrogen Evolution. Journal of Photochemistry & Photobiology A: Chemistry, 390, 1-8.
dc.identifier.doi10.1016/j.jphotochem.2019.112301en_US
dc.identifier.issn1010-6030en_US
dc.identifier.scopusqualityQ2en_US
dc.identifier.urihttps://dx.doi.org/10.1016/j.jphotochem.2019.112301
dc.identifier.urihttps://hdl.handle.net/20.500.12395/38602
dc.identifier.volume390en_US
dc.identifier.wosWOS:000512481000008en_US
dc.identifier.wosqualityQ2en_US
dc.indekslendigikaynakWeb of Scienceen_US
dc.indekslendigikaynakScopusen_US
dc.institutionauthorAslan, Emre.
dc.institutionauthorYanalak, Gizem.
dc.institutionauthorPatir, Imren Hatay.
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/openAccessen_US
dc.selcuk20240510_oaigen_US
dc.subjectDonor-pi-acceptor dyesen_US
dc.subjectHydrogen evolutionen_US
dc.subjectDye sensitizationen_US
dc.titleSynthesis of novel tetrazine based D-pi-A organic dyes for photoelectrochemical and photocatalytic hydrogen evolutionen_US
dc.typeArticleen_US

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