Journal
INTERNATIONAL JOURNAL OF HYDROGEN ENERGY
Volume 35, Issue 11, Pages 5270-5275Publisher
PERGAMON-ELSEVIER SCIENCE LTD
DOI: 10.1016/j.ijhydene.2010.03.090
Keywords
Photocatalyst; Hydrogen production; Visible light; Reduction treatment
Categories
Funding
- Key Laboratory for Chemical Biology of Fujian Province
- State Key Laboratory for Physical Chemistry of Solid Surface of Xiamen University
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To accrue the full environmental benefit of hydrogen as an energy carrier, we need to develop new visible-light-active photocatalyst. Here, the LaNi0.7Cu0.3O3, was used as a precursor and then treated at various temperatures (523-673 K) for 2 h under continuous H-2 flow. Among all the resultant photocatalysts, the LaNi0.7Cu0.3O3 treated at 573 K, exhibited highest photocatalytic activity when exposed to visible-light irradiation. We characterized the samples by XRD, DRS, XPS and PL. It was found that a perovskite-related material with proper oxygen vacancies and Cu2+/Cu1+ redox couples facilitated the enhancement in photocatalytic activity. Crown Copyright (C) 2010 Published by Elsevier Ltd on behalf of Professor T. Nejat Veziroglu. All rights reserved.
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