Solar light-driven hydrogen evolution by co-catalyst-free subphthalocyanine-sensitized photocatalysts

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dc.authoridAslan, Emre/0000-0002-7672-2873
dc.authoridHatay Patir, Imren/0000-0003-2937-6557
dc.authoridDEMIRCIOGLU, Perihan Kubra/0000-0001-9077-5990
dc.authoridAydin, Hasan/0000-0003-1622-2436
dc.authoridAkyildiz, Yigit Osman/0000-0001-7057-7268
dc.contributor.authorDogan, Sifa
dc.contributor.authorGuntay, Buket
dc.contributor.authorDemircioglu, Perihan Kubra
dc.contributor.authorAkyildiz, Yigit Osman
dc.contributor.authorAydin, Hasan
dc.contributor.authorAslan, Emre
dc.contributor.authorCan, Mustafa
dc.date.accessioned2025-03-17T12:25:50Z
dc.date.available2025-03-17T12:25:50Z
dc.date.issued2024
dc.departmentTarsus Üniversitesi
dc.description.abstractSubphthalocyanines (SubPcs) have emerged as promising organic dyes for the development of efficient artificial photosynthetic devices, offering intense absorption in the visible region along with excellent charge transport properties. In this study, four novel SubPc derivatives containing carboxylic acid and various peripheral substituents were synthesized as a panchromatic photosensitizer to prepare an efficient and stable TiO2-based photocatalytic system for co-catalyst-free photocatalytic hydrogen evolution. To compare the influence of the nature of the peripheral substituents on photocatalytic activity, SubPc derivatives (coded as SubPc 1-4) were decorated with substituents having different electron-donating capabilities, such as alkyl thio, benzodioxin, amine, and iodo units, respectively. Photocatalytic activities were examined in the presence of TEOA as a sacrificial agent under irradiation with lambda > 400 nm without co-catalyst loading. SubPc 1/TiO2 shows the best photocatalytic activity among the SubPc-sensitized photocatalysts, with a hydrogen evolution rate of 0.176 mmol h(-1). While the activity of all four SubPc-based photocatalysts increased significantly after 24 h irradiation, notably, SubPc 1/TiO2 exhibited remarkable catalytic activity, achieving a hydrogen evolution rate of 6.017 mmol with a high turnover number (TON) value of 12 279 for hydrogen production. This study highlights the potential of SubPc-based sensitizers for co-catalyst-free photocatalytic H-2 production and offers valuable insights into the impact of peripheral units in SubPc/TiO2-based photocatalytic systems.
dc.description.sponsorshipTrkiye Bilimsel ve Teknolojik Arascedil;timath;rma Kurumu [121Z232]; Scientific and Technological Research Council of Turkey, TUBITAK
dc.description.sponsorshipThis work has been supported by The Scientific and Technological Research Council of Turkey, TUBITAK (Grant: 121Z232).
dc.identifier.doi10.1039/d4nj00288a
dc.identifier.endpage4788
dc.identifier.issn1144-0546
dc.identifier.issn1369-9261
dc.identifier.issue11
dc.identifier.scopus2-s2.0-85186453428
dc.identifier.scopusqualityQ2
dc.identifier.startpage4783
dc.identifier.urihttps://doi.org/10.1039/d4nj00288a
dc.identifier.urihttps://hdl.handle.net/20.500.13099/1902
dc.identifier.volume48
dc.identifier.wosWOS:001173893900001
dc.identifier.wosqualityQ2
dc.indekslendigikaynakWeb of Science
dc.indekslendigikaynakScopus
dc.language.isoen
dc.publisherRoyal Soc Chemistry
dc.relation.ispartofNew Journal of Chemistry
dc.relation.publicationcategoryMakale - Uluslararası Hakemli Dergi - Kurum Öğretim Elemanı
dc.rightsinfo:eu-repo/semantics/closedAccess
dc.snmzKA_WOS_20250316
dc.subjectSystems
dc.titleSolar light-driven hydrogen evolution by co-catalyst-free subphthalocyanine-sensitized photocatalysts
dc.typeArticle

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