Journal
CHINESE SCIENCE BULLETIN
Volume 57, Issue 6, Pages 601-605Publisher
SCIENCE PRESS
DOI: 10.1007/s11434-011-4897-x
Keywords
liquid phase deposition (LPD); photocatalytic; molecularly imprinting; tetracycline hydrochloride
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Funding
- National Natural Science Foundation of China [20877012]
- National High Technology Research and Development Program of China [2007AA06Z406]
- Program for New Century Excellent Talents in University [NCET-08-0079]
- Program for Changjiang Scholars and Innovative Research Team in University [IRT0813]
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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 TiO2 nanotubes.
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