用于高效光催化析氢的染料敏化Cu2XSnS4（X = Zn、Ni、Fe、Co和Mn）纳米纤维
Dye-Sensitized Cu2 XSnS4 (X=Zn, Ni, Fe, Co, and Mn) Nanofibers for Efficient Photocatalytic Hydrogen Evolution.
作者信息
Gonce Mehmet Kerem, Aslan Emre, Ozel Faruk, Hatay Patir Imren
机构信息
Department of Nanotechnology and Advanced Materials, Selcuk University, 42030, Konya, Turkey.
Department of Chemistry, Selcuk University, 42030, Konya, Turkey).
出版信息
ChemSusChem. 2016 Mar 21;9(6):600-5. doi: 10.1002/cssc.201501661. Epub 2016 Feb 16.
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.
在可见光照射下，以三乙醇胺作为电子供体、曙红Y作为光敏剂，研究了低成本且不含贵金属的Cu2XSnS4（X = Zn、Ni、Fe、Co和Mn）纳米纤维催化剂的光催化析氢活性。比较了Cu2XSnS4（X = Zn、Ni、Fe、Co和Mn）纳米纤维之间以及与贵金属Pt的析氢速率。纳米纤维的析氢速率顺序为Cu2NiSnS4>Cu2FeSnS4>Cu2CoSnS4>Cu2ZnSnS4>Cu2MnSnS4（分别为2028、1870、1926、1420和389 μmol g(-1) h(-1)）。纳米纤维析氢速率的差异可能归因于它们的能级。此外，在可见光长期照射下，Cu2NiSnS4、Cu2FeSnS4和Cu2CoSnS4纳米纤维显示出比贵金属Pt更高且更稳定的光催化产氢速率。
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