期刊
ULTRASONICS SONOCHEMISTRY
卷 17, 期 3, 页码 534-540出版社
ELSEVIER
DOI: 10.1016/j.ultsonch.2009.11.008
关键词
Ultrasound; Microwave; Ag-CdS; Phase evolution; Raman enhanced; Photocatalysis
资金
- 973 Program [2007CB936204]
- National NSF [10732040]
- Jiangsu Province NSF [BK2008042]
- National and Jiangsu Province Postdoctoral Science Foundation [20090451207, 0901073C]
- NUAA fund [4015-909322]
Ag-doped CdS nanoparticles were synthesized by an ultrasound-assisted microwave synthesis method. The X-ray diffraction patterns reveal a structural evolution from cubic to hexagonal with increasing molar ratios of Ag+/Cd2+ from 0% to 5%. It shows that the Ag-doped hexagonal CdS nanoparticles are polycrystal. The X-ray photoelectron spectroscopy of the CdS nanoparticles doping with 5% Ag+ shows that the doped Ag in US is metallic. Simultaneously, the characteristic Raman peaks of the CdS nanoparticles enhance with increasing Ag+ concentrations. The photocatalytic activity of different Ag-doped samples show a reasonable change due to different ratios of Ag which doped into CdS. (c) 2009 Elsevier B.V. All rights reserved.
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