期刊
INTERNATIONAL JOURNAL OF HYDROGEN ENERGY
卷 41, 期 27, 页码 11558-11567出版社
PERGAMON-ELSEVIER SCIENCE LTD
DOI: 10.1016/j.ijhydene.2015.12.039
关键词
CdS; Nanorods; Strong quantum confinement; Solvothermal; Hydrogen production
Evolution of the nanostructure of CdS was studied on samples prepared by solvothermal synthesis from low (90 degrees C) to high temperature (190 degrees C). Physicochemical characterization of CdS samples have shown the evolution with solvothermal temperature of the CdS nanostructures from lamellar structures composed of many random arranged crystal lattices with short-range crystalline sizes formed at low temperature to the formation of highly crystalline rods and wires with higher diameter and length as the solvothermal temperature rises. Photocatalytic activity for H-2 production has shown that the combination of CdS nanorods having low diameter with small CdS nanocrystals with strong confinement effect (CdS-SQE) produced at medium temperature strongly enhances the photoactivity compared to that obtained on crystalline CdS in form of rods or wires produced at higher solvothermal temperature. (C) 2015 Hydrogen Energy Publications LLC. Published by Elsevier Ltd. All rights reserved.
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