期刊
INTERNATIONAL JOURNAL OF HYDROGEN ENERGY
卷 35, 期 13, 页码 7110-7115出版社
PERGAMON-ELSEVIER SCIENCE LTD
DOI: 10.1016/j.ijhydene.2010.02.013
关键词
Ag2S/CdS; Photocatalytic; Hydrogen; Solar light
Nanostructured Ag2S/CdS were synthesized by a two-step precipitation method, and characterized by transmission electron microscopy (TEM), X-ray diffraction (XRD), and UV-Vis absorption spectra. With Ag2S highly dispersed in the CdS nanostructures, the photoactivity was evaluated by hydrogen evolution from aqueous solution containing Na2S/Na(2)So(3) as a hole scavenger under simulated solar light (AM1.5). When the concentration of Ag2S was 5% by weight, Ag2S/CdS showed the highest photocatalytic activity for hydrogen evolution, with the solar-hydrogen energy conversion efficiency approximately 0.7%. We investigated the effect of highly dispersed Ag2S on the photoactivity. Published by Elsevier Ltd on behalf of Professor T. Nejat Veziroglu.
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