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http://hdl.handle.net/10773/20300
Title: | An ionic liquid route to prepare copper sulphide nanocrystals aiming at photocatalytic applications |
Author: | Estrada, Ana C. Silva, Fabio M. Soares, Sofia F. Coutinho, Joao A. P. Trindade, Tito |
Keywords: | VISIBLE-LIGHT SEMICONDUCTOR PHOTOCATALYSIS STRUCTURAL-CHARACTERIZATION SOLVOTHERMAL PROCESS ASSISTED SYNTHESIS CU2S NANOCRYSTALS ORGANIC POLLUTANT METAL SULFIDES THIN-FILMS CUS |
Issue Date: | 2016 |
Publisher: | ROYAL SOC CHEMISTRY |
Abstract: | Copper sulphide crystallizes in a variety of phases that exhibit distinct optical properties including different optical band gaps in the visible region. The crystalline phases are associated with unique properties shown by semiconductor nanocrystals that could be exploited to produce new photocatalysts with tuned optical behavior. This research reports on the use of ionic liquids as a reaction medium to produce copper sulphide nanocrystals whose crystalline phase depends on the synthesis conditions. Noteworthy, these solvents allow the production of water dispersible copper sulphides following the thermal treatment of Cu(II) alkyldithiocarbamates complexes, used here as single-molecule precursors, thus improving their potential for heterogeneous photocatalysis in the aqueous phase. Finally, the ensuing copper sulphides have been preliminarily assessed for their photocatalytic activity in the degradation of rhodamine B (RhB). The results indicate that the ionic liquid route described here has an impact on the copper sulphides produced and thereby on their performance as photocatalysts. |
Peer review: | yes |
URI: | http://hdl.handle.net/10773/20300 |
DOI: | 10.1039/c5ra27569e |
ISSN: | 2046-2069 |
Publisher Version: | 10.1039/c5ra27569e |
Appears in Collections: | CICECO - Artigos |
Files in This Item:
File | Description | Size | Format | |
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An ionic liquid route to prepare copper sulphide nanocrystals aiming at photocatalytic applications_10.1039c5ra27569e.pdf | 665.81 kB | Adobe PDF | View/Open |
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