Composition dependent activity of Fe 1−x Pt x decorated ZnCdS nanocrystals for photocatalytic hydrogen evolution
| Autor: | Yang Li, Hao Wang, Pierre Ruterana, Xina Wang, Yi Wang, Hanbin Wang, Dan Shu, Xiang Liu, Xu Chen, Xiao-Niu Peng |
|---|---|
| Rok vydání: | 2017 |
| Předmět: |
Materials science
Base (chemistry) Alloy Energy Engineering and Power Technology Nanoparticle Nanotechnology 02 engineering and technology engineering.material 010402 general chemistry 01 natural sciences chemistry.chemical_compound chemistry.chemical_classification Nanocomposite Renewable Energy Sustainability and the Environment 021001 nanoscience & nanotechnology Condensed Matter Physics 0104 chemical sciences Fuel Technology chemistry Nanocrystal engineering Photocatalysis 0210 nano-technology Ethylene glycol Visible spectrum Nuclear chemistry |
| Zdroj: | International Journal of Hydrogen Energy. 42:20888-20894 |
| ISSN: | 0360-3199 |
| DOI: | 10.1016/j.ijhydene.2016.12.037 |
| Popis: | In this work, ZnCdS nanoparticles (NPs) were decorated with FePt alloy, forming nanocomposites via ethylene glycol reduction method. The photocatalytic H 2 production of the Fe 1−x Pt x –ZnCdS NPs was studied by changing the composition and weight percentage of Fe 1−x Pt x alloy in the nanocomposites under visible light (λ ≥ 420 nm) irradiation. The results showed that the hydrogen production rate of Fe 1−x Pt x –ZnCdS NPs had a significant enhancement over the pure ZnCdS (740 μmol g −1 h −1 ). The activity of the nanocomposites was dependent on the composition of Fe 1−x Pt x alloy and the highest hydrogen production rate of 2265 μmol g −1 h −1 was achieved by the 0.5 wt% Fe 0.3 Pt 0.7 –ZnCdS nanocomposites, which was even better than that of 0.5 wt% Pt–ZnCdS (1626 μmol g −1 h −1 ) under the same condition. This study highlights the significance of Pt base alloys as new cocatalysts for the development of novel composite photocatalysts. |
| Databáze: | OpenAIRE |
| Externí odkaz: |
|
Full Text from ScienceDirect