Journal
MATERIALS LETTERS
Volume 173, Issue -, Pages 227-230Publisher
ELSEVIER SCIENCE BV
DOI: 10.1016/j.matlet.2016.03.073
Keywords
Semiconductors; Nb2O5; Layered double hydroxides; Composite materials; Degradation under visible light irradiation
Funding
- National Science Foundation of China [21101142, 21271028]
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We demonstrate novel Nb2O5 center dot nH(2)O/LDH composites that were firstly fabricated via hydrothermal synthesis of Nb2O5 microspheres followed by in situ growth of ZnAI-LDH shell. The structure of the Nb2O5 center dot nH(2)O/LDH was investigated, and the results showed that the ZnAI-LDH had grew inside the slit of burr-surface of Nb2O5 center dot nH(2)O microspheres. Its calcined product Nb2O5/LDO shows a high adsorption capacity of the congo red (abbr. CR). The photocatalytic experiment results indicate that the Nb2O5/LDO displays obviously photoactivity and the degradation of CR could reach a ratio of 85% under visible-light irradiation, but the Nb2O5 alone exhibits no photocatalytic activity for CR. The center dot OH radicals may be predominant oxidative species responsible. (C) 2016 Elsevier B.V. All rights reserved.
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