Journal
CATALYSIS COMMUNICATIONS
Volume 10, Issue 14, Pages 1854-1858Publisher
ELSEVIER
DOI: 10.1016/j.catcom.2009.06.014
Keywords
Bentonite; Iron oxide; Dye; Adsorption; Degradation; Visible light
Categories
Funding
- NSFC [20477038, 20525724, 20873124]
- 973 Program [2009CB825300]
- Xuxu Wang at Fuzhou University
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Natural clay-supported iron oxide was prepared by deposition method, and dried at 120 degrees C. It was found that under visible light in the presence of H2O2, this catalyst was highly active for degradation of cationic (malachite and fuchsin basic) and anionic dyes (orange II and X3B) in water at pH 6.5, as compared with bare iron oxide or the clay-supported iron oxide sintered at 350 degrees C. The excellent performance of the catalyst is correlated with its high sorption capacity toward both types of dyes, thus resulting in enhanced dye degradation via a photosensitization pathway. The catalyst was characterized by XRD, nitrogen adsorption, infrared. and UV-visible spectroscopy. (c) 2009 Elsevier B.V. All rights reserved.
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