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Photocatalytic hydrogen evolution based on Cu2ZnSnS4, Cu2NiSnS4 and Cu2CoSnS4 nanocrystals
Scopus
Toplam 121 atıf DOI
A low cost and environment-friendly Cu2ZnSnS4, Cu2CoSnS4 and Cu2NiSnS4 nanocrystals have been used as a catalyst instead of noble metal Pt for the photocatalytic hydrogen evolution in the presence of triethanolamine and eosin Y as a sacrificial reducing agent and a photosensitizer, respectively under visible light irradiation. Cu2NiSnS4 and Cu2CoSnS4 nanocrystals exhibit a longer photostability and a higher hydrogen evolution rate of 1200 μmolg−1 h−1, 900 μmolg−1 h−1, respectively, compared to that of Cu2ZnSnS4 by producing hydrogen 670 μmolg−1 h−1.
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Photocatalytic hydrogen evolution via solar-driven Water splitting by CuSbS2 with different shapes
Scopus
Havuzumuzda 19 atıf almış
Chalcostibite (CuSbS2) semiconductor catalyst has been intensively preferred towards energy conversion processes because of its suitable bandgap, high absorption coefficient and photocatalytic activity. Herein, the photocatalytic hydrogen evolution reaction (HER) was carried out by using different shapes (Rod (R) and Dot (D)) of copper-antimony sulfides. The hydrogen evolution activities of R-CuSbS2 and D-CuSbS2 were investigated under the visible light irradiation by using eosin-Y (EY) dye and triethanolamine (TEOA) as photosensitizer and an electron donor, respectively. The photocatalytic HER rates of R-CuSbS2 and D-CuSbS2 were determined as 2140 μmolg−1 h−1 and 825 μmolg−1 h−1, respectively. R-CuSbS2 displayed higher photocatalytic activity in comparison with D-CuSbS2. The results of photocatalytic activity belonging to chalcostibite catalysts could be explained by efficient charge separation efficiency of 1D microrod materials.
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Kurumlar (2)
Karamanoğlu Mehmetbey Üniversitesi
Karaman, Turkey
Selçuk Üniversitesi
Selçuklu, Turkey