Synthesis of molecular imprinted polymer modified TiO2 nanotube array electrode and their photoelectrocatalytic activity

被引：62

作者：

Lu, Na ^{[1
]}

Chen, Shuo ^{[1
]}

Wang, Hongtao ^{[1
]}

Quan, Xie ^{[1
]}

Zhao, Huimin ^{[1
]}

机构：

[1] Dalian Univ Technol, Sch Environm & Biol Sci & Technol, Minist Educ, Key Lab Ind Ecol & Environm Engn, Dalian 116024, Peoples R China

来源：

JOURNAL OF SOLID STATE CHEMISTRY | 2008年 / 181卷 / 10期

关键词：

Molecular imprinted polymers; TiO2 nanotube array electrode; Tetracycline hydrochloride; Photoelectrocatalysis;

D O I：

10.1016/j.jssc.2008.07.004

中图分类号：

O61 [无机化学];

学科分类号：

070301 ; 081704 ;

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.

引用

页码：2852 / 2858

页数：7

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