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Reference type: Journal
Authors: Huang LQ, Lin P
Article Title: Selective Degradation of Malachite Green Catalyzed by Molecule-imprinted Chitosan/TiO_2 Photo-assisted Catalyst.
Publication date: 2012
Journal: Journal of Xiamen University (Natural Science)
Volume: 51
Issue: (2)
Page numbers: 224-228.
Alternative URL: http://jxmu.xmu.edu.cn/oa/DArticle.aspx?type=view&id=20120216

Abstract: Molecule-imprinted chitosan/TiO2 catalyst was synthesized by using malachite green (MA) as template-molecules from tetra-n-butyl titanate and chitosan. Photo-catalyzed degradation of solution of MA and/or other substrates at UV light in the presence of the MA-imprinted chitosan/TiO2 catalyst was studied and compared with the corresponding non-imprinted systems, and the structure of catalysts was characterized by XRD and FTIR methods. The experimental results indicated that over the MA-imprinted chitosan/TiO2 catalyst, the rate of photo-catalyzed degradation of target-substrate molecules was markedly higher than that of the non-imprinted (popular type) chitosan/TiO2 catalyst (with a 69% increment of k), and the imprinted catalyst exhibited a selective catalytic activity for the photo-catalyzed degradation of target-substrate molecules. When degrading non-target-substrate molecules, the MA-imprinted chitosan/TiO2 catalyst exhibited a similar activity with the non-imprinted catalyst.
Template and target information: malachite green, MA
Author keywords: molecular imprint, TIO2, chitosan, Malachite green, photo-catalyzed degradation


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