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Capability of novel ZnFe(2)O(4) nanotube arrays for visible-light induced degradation of 4-chlorophenol

Authors Li, Xinyong
Hou, Yang
Zhao, Qidong
Teng, Wei
Hu, Xijun View this author's profile
Chen, Guohua View this author's profile
Issue Date 2011
Source Chemosphere , v. 82, (4), January 2011, p. 581-586
Summary Highly ordered ZnFe(2)O(4) nanotube arrays were successfully prepared by anodic aluminum oxide templates from sol-gel solution. The results from environmental scanning electron microscopy and X-ray photoemission spectroscopy indicated that the as-prepared samples were vertically aligned spinet ZnFe(2)O(4) nanotube arrays, and the nanotubes were uniform along the axial direction with an average diameter of approximately 200 nm. The absorption edge of ZnFe(2)O(4) nanotube arrays shifted to a higher energy in the UV-Vis absorption spectrum compared with that of ZnFe(2)O(4) nanoparticles film. The synthesized ZnFe(2)O(4) nanotube arrays exhibited excellent photocatalytic capability for degradation of 4-chlorophenol under visible-light irradiation. The main intermediate degradation species of 4-chlorophenol identified by liquid chromatography-mass technique were benzoquinone, hydroquinone, hydroxybenzoquinone and 2-peroxy-o-dihydroxybenzene. The degradation pathways of 4-chlorophenol under visible-light irradiation was derived and discussed by interpreting the observations of the intermediate species in the photocatalytic reactions. (C) 2010 Elsevier Ltd. All rights reserved.
ISSN 0045-6535
Language English
Format Article
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