title: Dye-Sensitized Cu2 XSnS4 (X=Zn, Ni, Fe, Co, and Mn) Nanofibers for Efficient Photocatalytic Hydrogen Evolution.
abstract: The photocatalytic hydrogen evolution activities of low-cost and noble-metal-free Cu2 XSnS4 (X=Zn, Ni, Fe, Co, and Mn) nanofiber catalysts have been investigated using triethanolamine as an electron donor and eosin Y as a photosensitizer under visible-light irradiation. The rates of hydrogen evolution by Cu2 XSnS4 (X=Zn, Ni, Fe, Co, and Mn) nanofibers have been compared with each other and with that of the noble metal Pt. The hydrogen evolution rates for the nanofibers change in the order Cu2 NiSnS4 >Cu2 FeSnS4 >Cu2 CoSnS4 >Cu2 ZnSnS4 >Cu2 MnSnS4 (2028, 1870, 1926, 1420, and 389 μmol g(-1) h(-1) , respectively). The differences between the hydrogen evolution rates of the nanofibers could be attributed to their energy levels. Moreover, Cu2 NiSnS4, Cu2 FeSnS4 , and Cu2 CoSnS4 nanofibers show higher and more stable photocatalytic hydrogen production rates than that of the noble metal Pt under long-term irradiation with visible light.
authors.affiliation: Department of Nanotechnology and Advanced Materials, Selcuk University, 42030, Konya, Turkey.
authors.forename: Mehmet Kerem
authors.initials: MK
authors.lastname: Gonce
authors.affiliation: Department of Chemistry, Selcuk University, 42030, Konya, Turkey).
authors.forename: Emre
authors.initials: E
authors.lastname: Aslan
authors.affiliation: Department of Materials Science and Engineering, Karamanoglu Mehmetbey University, 70200, Karaman, Turkey),. farukozell@gmail.com.
authors.forename: Faruk
authors.initials: F
authors.lastname: Ozel
authors.affiliation: Department of Chemistry, Selcuk University, 42030, Konya, Turkey),. imrenhatay@gmail.com.
authors.forename: Imren
authors.initials: I
authors.lastname: Hatay Patir
mesh_terms: D002384:Catalysis; D004396:Coloring Agents / Q000737:chemistry*; D006859:Hydrogen / Q000737:chemistry*; D008670:Metals / Q000737:chemistry*; D008855:Microscopy, Electron, Scanning; D057139:Nanofibers / Q000737:chemistry*; D055668:Photochemical Processes; D014961:X-Ray Diffraction
chemical_list: D004396:Coloring Agents; D008670:Metals; D006859:Hydrogen
keywords: energy conversion; hydrogen; nanofibers; photocatalysis; water splitting