NDLI: Quick photo-Fenton degradation of phenolic compounds by $Cu/Al_{2}O_{3}–MCM-41$ under visible light irradiation: small particle size, stabilization of copper, easy reducibility of Cu and visible light active material

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Quick photo-Fenton degradation of phenolic compounds by $Cu/Al_{2}O_{3}–MCM-41$ under visible light irradiation: small particle size, stabilization of copper, easy reducibility of Cu and visible light active material

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Year: 2013 Volume: 42 Issue: 1

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Quick photo-Fenton degradation of phenolic compounds by $Cu/Al_{2}O_{3}–MCM-41$ under visible light irradiation: small particle size, stabilization of copper, easy reducibility of Cu and visible light active material

Content Provider	World Health Organization (WHO)-Global Index Medicus
Author	Parida, K. M. Das, Mira Pradhan, Amaresh C. Nanda, Binita
Description	Author Affiliation: Pradhan AC ( Colloids and Material Chemistry Department, Institute of Minerals and Materials Technology (CSIR), Bhubaneswar-751013, Orissa, India.)
Abstract	The present study reports the photo-Fenton degradation of phenolic compounds (phenol, 2-chloro-4-nitrophenol and 4-chloro-2-nitrophenol) in aqueous solution using mesoporous $Cu/Al_{2}O_{3}–MCM-41$ nanocomposite as a heterogeneous photo-Fenton-like catalyst. The in situ incorporation of mesoporous $Al_{2}O_{3}$ (MA) into the framework of MCM-41 (sol–gel method) forms $Al_{2}O_{3}–MCM-41$ and wetness impregnation of Cu(II) on $Al_{2}O_{3}–MCM-41$ generates mesoporous $Cu/Al_{2}O_{3}–MCM-41$ composite. The effects of pH and $H_{2}O_{2}$ concentration on degradation of phenol, 2-chloro-4-nitrophenol and 4-chloro-2-nitrophenol are studied. Kinetics analysis shows that the photocatalytic degradation reaction follows a first-order rate equation. Mesoporous 5 $Cu/Al_{2}O_{3}–MCM-41$ is found to be an efficient photo-Fenton-like catalyst for the degradation of phenolic compounds. It shows nearly 100% degradation in 45 min at pH 4. The combined effect of small particle size, stabilization of $Cu^{2+}$ on the support $Al_{2}O_{3}–MCM-41,$ ease reducibility of $Cu^{2+}$ and visible light activeness are the key factors for quick degradation of phenolic compounds by $Cu/Al_{2}O_{3}–MCM-41.$
ISSN	14779226
Issue Number	2
Volume Number	42
e-ISSN	13645447
Journal	Dalton Trans.
Language	English
Publisher	Royal Society of Chemistry
Publisher Date	2013-01-14
Publisher Place	Great Britain (UK)
Access Restriction	Subscribed
Subject Keyword	Aluminum Oxide Chemistry Copper Hydrogen Peroxide Iron Light Particle Size Phenols Silicon Dioxide Green Chemistry Technology Hydrogen-Ion Concentration Kinetics Oxidation-Reduction Photochemical Processes Porosity Surface Properties Journal Article Research Support, Non-U.S. Gov't
Content Type	Text
Resource Type	Article
Subject	Inorganic Chemistry

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