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三元杂交 CdS/Pt-TiO2 纳米管结构用于光电催化杀灭大肠杆菌。

A ternary hybrid CdS/Pt-TiO2 nanotube structure for photoelectrocatalytic bactericidal effects on Escherichia coli.

机构信息

State Key Laboratory of Chemo/Biosensing and Chemometrics, Department of Chemistry, Hunan University, Changsha, PR China.

出版信息

Biomaterials. 2010 Apr;31(12):3317-26. doi: 10.1016/j.biomaterials.2010.01.047. Epub 2010 Feb 9.

DOI:10.1016/j.biomaterials.2010.01.047
PMID:20149446
Abstract

A ternary hybrid CdS/Pt-TiO(2) nanotube (NT) photoelectrode was developed by dipping and deposition technique as well as successive ionic layer adsorption and reaction (SILAR). Small Pt nanoparticles (NPs) and CdS NPs were effectively deposited on both the inside and outside of the TiO(2) NTs. The as-prepared hybrid shows enhanced photon absorption and photocurrent generation efficiency. Higher bactericidal effect to Escherichia coli was observed on the ternary hybrid CdS/Pt-TiO(2) NTs as compared with Pt-TiO(2) NTs or pure TiO(2) NTs.

摘要

采用浸渍沉积法和连续离子层吸附反应（SILAR）法制备了三元复合 CdS/Pt-TiO(2) 纳米管（NT）光电极。小的 Pt 纳米颗粒（NPs）和 CdS NPs 有效地沉积在 TiO(2) NT 的内外表面。所制备的三元复合结构表现出增强的光子吸收和光电流产生效率。与 Pt-TiO(2) NTs 或纯 TiO(2) NTs 相比，三元复合 CdS/Pt-TiO(2) NTs 对大肠杆菌具有更高的杀菌效果。

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