期刊
CHINESE CHEMICAL LETTERS
卷 29, 期 3, 页码 527-530出版社
ELSEVIER SCIENCE INC
DOI: 10.1016/j.cclet.2017.09.007
关键词
Titanium dioxide; Silicon dioxide; Molecular imprinted polymer; Liquid phase deposition; Electrospinning; Photocatalysis
资金
- National Natural Science Foundation of China [51503083]
- China Postdoctoral Science Foundation [2017M611696]
- Fundamental Research Funds for the Central Universities [JUSRP51723B]
- National High-tech R&D Program of China [2016YFB0302901]
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 wasthen 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 were examined in both single and binary systems. The results demonstrated that molecular imprinted Fe@TS membranes exhibited excellent selectivity for photodegradation of 4NP. (C) 2017 Chinese Chemical Society and Institute of Materia Medica, Chinese Academy of Medical Sciences. Published by Elsevier B.V. All rights reserved.
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