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Reference type: Journal
Authors: Li XQ, Wang JD, Li MJ, Jin Y, Gu ZJ, Liu CC, Ogino K
Article Title: Fe-doped TiO2/SiO2 nanofibrous membranes with surface molecular imprinted modification for selective photodegradation of 4-nitrophenol.
Publication date: 2018
Journal: Chinese Chemical Letters
Volume: 29
Issue: (3)
Page numbers: 527-530.
DOI: 10.1016/j.cclet.2017.09.007
Alternative URL: http://www.sciencedirect.com/science/article/pii/S1001841717303492

Abstract: In this study, Fe-doped TiO2/SiO2 (Fe@TS) nanofibrous membranes with molecular imprinted modification, were fabricated by a combination of sol-gel process, electrospinning, calcination and liquid phase deposition techniques. The precursor sol was prepared from one-pot condensation of poly(vinylpyrrolidone), ferric chloride hexahydrate, tetraethyl orthosilicate and titanium n-butoxide in the mixture solvents of N,N-dimethylformamide and ethyl alcohol. Fibrous membrane was then fabricated by electrospinning, followed by calcination to form the Fe@TS composite. The physicochemical properties of Fe@TS were characterized. Thereafter, 4-nitrophenol (4NP) was used as the template to deposit onto nanofibrous Fe@TS membranes, with a thin layer of molecular imprinted polymer in liquid phase. The photodegradation capabilities of 4NP and methyl orange wereexamined in both single and binary systems. The results demonstrated that molecular imprinted Fe@TS membranes exhibited excellent selectivity for photodegradation of 4NP
Template and target information: 4-nitrophenol, 4NP
Author keywords: titanium dioxide, Silicon dioxide, molecular imprinted polymer, Liquid phase deposition, electrospinning, Photocatalysis


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