摘要
To enhance the photocatalytic activity of TiO2 nanotubes,tetracycline hydrochloride(TC) molecularly imprinted titania modified TiO2 nanotubes(MIP-TiO2) was prepared by liquid phase deposition,which improved the molecular recognition ability of the photocatalyst toward template molecules.This MIP-TiO2 photocatalyst was characterized by ESEM and XRD,which showed that the imprinted titania was deposited on the nanotube uniformly and was of well-crystalized anatase-type.In the adsorption experiments,MIP-TiO2 exhibited a high adsorption capacity(about 1.6 times higher than that of TiO2 nanotubes) for TC mainly because of its imprinted sites and high surface area.Under UV irradiation MIP-TiO2 showed enhanced photocatalytic activity with an apparent first-order rate constant 1.9-fold that of TiO 2 nanotubes.
To enhance the photocatalytic activity of TiO/nanotubes, tetracycline hydrochloride （TC） molecularly imprinted titania modified TiO2 nanotubes （MIP-TiO2） was prepared by liquid phase deposition, which improved the molecular recognition ability of the photocatalyst toward template molecules. This MIP-TiO2 photocatalyst was characterized by ESEM and XRD, which showed that the imprinted titania was deposited on the nanotube uniforrrdy and was of well-crystalized anatase-type. In the adsorption experiments, MIP-TiO2 exhibited a high adsorption capacity （about 1.6 times higher than that of TiO2 nanotubes） for TC mainly because of its imprinted sites and high surface area. Under UV irradiation MIP-TiO2 showed enhanced photocataiytic activity with an apparent first-order rate constant 1.9-fold that of TiO2 nanotubes.
基金
supported by the National Natural Science Foundation of China (20877012)
the National High Technology Research and Development Program of China (2007AA06Z406)
the Program for New Century Excellent Talents in University (NCET-08-0079)
the Program for Chang-jiang Scholars and Innovative Research Team in University (IRT0813)
