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Reference type: Journal
Authors: Wang ZQ, Liu X, Li WQ, Wang HY, Li HX
Article Title: Enhancing the photocatalytic degradation of salicylic acid by using molecular imprinted S-doped TiO2 under simulated solar light.
Publication date: 2014
Journal: Ceramics International
Volume: 40
Issue: (6)
Page numbers: 8863-8867.
DOI: 10.1016/j.ceramint.2014.01.110
Alternative URL: http://www.sciencedirect.com/science/article/pii/S0272884214001370

Abstract: Molecular imprinted polymer coated S-doped TiO2 (MIP/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
Template and target information: salicylic acid, 2-hydroxybenzoic acid, o-hydroxybenzoic acid
Author keywords: adsorption, degradation, molecular imprinting, salicylic acid, S-doped TiO2


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