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Silk sericin-assisted synthesis of architectured porous copper@cuprous oxide hybrid microspheres with enhanced visible light photocatalytic activity.
- Source :
-
Materials Science in Semiconductor Processing . Nov2018, Vol. 86, p157-163. 7p. - Publication Year :
- 2018
-
Abstract
- Novel architectured porous Cu@Cu 2 O hybrid microspheres were successfully designed and synthesized using silk sericin (SS) as structure-director to firstly form the hierarchical Cu 2 O/SS microspheres by self-assembly, followed by a calcination process. A possible mechanism has been proposed based on the results of FESEM, TEM and XRD analysis. The photocatalytic performance of obtained porous Cu@Cu 2 O hybrid microspheres was investigated, and the synergistic effect of Cu and Cu 2 O phases contributed to improving the light absorption ability, electron-hole separation and transfer compared with pure Cu 2 O. Importantly, the photo-degradation ratio of Cu@Cu 2 O hybrid microspheres for methyl orange (MO) reached up to 99.9% after 110 min visible light irradiation, which is almost 1.3 times than that of pure Cu 2 O. Furthermore, Cu@Cu 2 O hybrid microspheres also exhibited outstanding reusability and stability because that its degradation efficiency for MO still maintained at 93.5% after five cycles. [ABSTRACT FROM AUTHOR]
Details
- Language :
- English
- ISSN :
- 13698001
- Volume :
- 86
- Database :
- Academic Search Index
- Journal :
- Materials Science in Semiconductor Processing
- Publication Type :
- Academic Journal
- Accession number :
- 130792590
- Full Text :
- https://doi.org/10.1016/j.mssp.2018.06.034