Journal
CERAMICS INTERNATIONAL
Volume 40, Issue 6, Pages 8863-8867Publisher
ELSEVIER SCI LTD
DOI: 10.1016/j.ceramint.2014.01.110
Keywords
Adsorption; Degradation; Molecular imprinting; Salicylic acid; S-doped TiO2
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Funding
- Open Project of the Key Laboratory of the Chinese Ministry of Education in Resource Chemistry
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Molecular imprinted polymer coated S-doped TiO2 (MEP/S-TiO2) nanocomposites were successfully synthesized by a surface molecular imprinting technique using p-phenylenediamine as the functional monomer and salicylic acid as the template molecule. The structure and properties of the catalysts were characterized by X-ray diffraction, scanning electron microscopy, and UV vis diffuse reflectance spectra. Compared with TiO2 nanoparticles, the absorption edge of MIP/S-TiO2 nanocomposites was enhanced over the whole range of visible region. Moreover, MIP/S-TiO2 nanocomposites showed higher adsorption capacity for salicylic acid than for S-TiO2 nanoparticles. The rate constant for the photodegradation of salicylic acid over MIP/S-TiO2 nanocomposites was 1.7 times that of salicylic acid over S-TiO2 nanoparticles, which was attributed to the molecular recognition ability of MIP/S-TiO2 nanocomposites for the target molecules. (C) 2014 Elsevier Ltd and Techna Group S.r.l. All rights reserved.
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