Journal
NEW JOURNAL OF CHEMISTRY
Volume 38, Issue 9, Pages 4182-4189Publisher
ROYAL SOC CHEMISTRY
DOI: 10.1039/c4nj00264d
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Funding
- National Natural Science Foundation of China [51071108]
- Tianjin important Natural Science Foundation [09JCZDJC18500]
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Tunable ZnS-CuS microspheres were readily prepared via replacing the Zn2+ ions of solid ZnS microspheres with Cu2+ ions in an aqueous solution under a hydrothermal condition, and were then characterized by XRD, SEM, TEM, UV-Vis, PL and XPS techniques. The thickness of CuS shell on the surface of ZnS core can be controlled by changing the ion-exchange time, which plays an important role in the visible light photodegradation efficiency of rhodamine B in aqueous solution. Degradation rate can rapidly reach ca. 72% under visible light irradiation for 15 min and then ca. 98% after 60 min using the ZnS-CuS microspheres as the photocatalyst.
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