Improving the Photocatalytic Hydrogen Generation Using Nonaggregated Zinc Phthalocyanines

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dc.authoridYUZER, ABDULCELIL/0000-0002-2287-4126
dc.authoridAslan, Emre/0000-0002-7672-2873
dc.authoridYILDIZ, Gizem/0000-0001-9845-8076
dc.authoridGULLU, Mustafa/0000-0003-3905-1094
dc.authoridKurtay, Gulbin/0000-0003-0920-8409
dc.authoridHatay Patir, Imren/0000-0003-2937-6557
dc.contributor.authorAcar, Eminegul Genc
dc.contributor.authorYuzer, A. Celil
dc.contributor.authorKurtay, Gulbin
dc.contributor.authorYanalak, Gizem
dc.contributor.authorHarputlu, Ersan
dc.contributor.authorAslan, Emre
dc.contributor.authorOcakoglu, Kasim
dc.date.accessioned2025-03-17T12:25:54Z
dc.date.available2025-03-17T12:25:54Z
dc.date.issued2021
dc.departmentTarsus Üniversitesi
dc.description.abstractIn comparison to traditional solar cells, the dye-sensitized photocatalytic system is one of the most appealing artificial photosynthesis mechanisms due to its low cost and straightforward fabrication. Herein, the photoelectrochemical and photocatalytic hydrogen evolution reactions of Zn-based phthalocyanine (Pc) derivatives, abbreviated as ZnPc-1 and ZnPc-2, were primarily studied in the presence of TEOA sacrificial electron donor. To this aim, the PC activities of ZnPc-1/TiO2 and ZnPc-2/TiO2 photocatalysts were investigated in the absence and presence of a cocatalyst. For the first hour, the amount of hydrogen generated by ZnPc derivatives (ZnPc-1/TiO2 and ZnPc-2/TiO2) was determined to be 1.221 and 0.864 mmol g(-1) h(-1), respectively. Additionally, the solar-to-hydrogen conversion efficiencies of ZnPc-1/TiO2 and ZnPc-2/TiO2 were ascertained to be 3.15% and 2.22%, respectively. Interestingly, STH efficiencies of photocatalysts were increased about 4-fold in the presence of a cocatalyst. Consequently, to elucidate the structural properties of ZnPc-1 and ZnPc-2, density functional theory (DFT) and time-dependent DFT studies were also conducted, and it was discovered that noncovalent interactions and steric hindrance effects on ZnPc-2 are tightly related to the experimentally determined PC activity differences between ZnPc-1 and ZnPc-2.
dc.description.sponsorshipTurkish Academy of Sciences
dc.description.sponsorshipM.I. and I.H.P thank the Turkish Academy of Sciences for financial assistance through a TUBA-GEBIP fellowship. The quantum chemical calculations reported in this paper were performed at TUBITAK ULAKBIM, High Performance and Grid Computing Center (TRUBA resources).
dc.identifier.doi10.1021/acsaem.1c02102
dc.identifier.endpage10233
dc.identifier.issn2574-0962
dc.identifier.issue9
dc.identifier.scopus2-s2.0-85116006136
dc.identifier.scopusqualityQ1
dc.identifier.startpage10222
dc.identifier.urihttps://doi.org/10.1021/acsaem.1c02102
dc.identifier.urihttps://hdl.handle.net/20.500.13099/1922
dc.identifier.volume4
dc.identifier.wosWOS:000703338600156
dc.identifier.wosqualityQ2
dc.indekslendigikaynakWeb of Science
dc.indekslendigikaynakScopus
dc.language.isoen
dc.publisherAmer Chemical Soc
dc.relation.ispartofAcs Applied Energy Materials
dc.relation.publicationcategoryMakale - Uluslararası Hakemli Dergi - Kurum Öğretim Elemanı
dc.rightsinfo:eu-repo/semantics/closedAccess
dc.snmzKA_WOS_20250316
dc.subjectartificial photosynthesis
dc.subjectDFT
dc.subjectdye sensitization
dc.subjectNIR dyes
dc.subjectphotocatalytic hydrogen evolution
dc.subjectphthalocyanine
dc.titleImproving the Photocatalytic Hydrogen Generation Using Nonaggregated Zinc Phthalocyanines
dc.typeArticle

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