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论文类型：期刊论文

发表时间：2008-10-01

发表刊物：JOURNAL OF SOLID STATE CHEMISTRY

收录刊物：SCIE、EI

卷号：181

期号：10

页面范围：2852-2858

ISSN号：0022-4596

关键字：Molecular imprinted polymers; TiO2 nanotube array electrode; Tetracycline hydrochloride; Photoelectrocatalysis

摘要：A tetracycline hydrochloride (TC) molecularly imprinted polymer (MIP) modified TiO2 nanotube array electrode was prepared Via Surface molecular imprinting. Its surface was Structured with surface voids and the nanotubes were open at top end with an average diameter of approximately 50 nm. The MIP-modified TiO2 nanotube array with anatase phase was identified by XRD and a distinguishable red shift in the absorption spectrum Was observed. The MIP-modified electrode also exhibited a high adsorption capacity for TC due to its high surface area providing imprinted sites. Photocurrent was generated oil the MIP-modified photoanode using the simulated solar spectrum and increased with the increase of positive bias potential. Under simulated solar light irradiation, the MIP-modified TiO2 nanotube array electrode exhibited enhanced photoelectrocatalytic (PEC) activity with the apparent first-order rate constant being 1.2-fold Of that With TiO2 nanotube array electrode. The effect of the thickness of the MIP layer oil the PEC activity was also evaluated. (C) 2003 Elsevier Inc. All rights reserved.