Surface functionalization of cellulose fibers with titanium dioxide nanoparticles and their combined bactericidal activities

被引：250

作者：

Daoud, WA ^{[1
]}

Xin, JH ^{[1
]}

Zhang, YH ^{[1
]}

机构：

[1] Hong Kong Polytech Univ, ITC, Nanotechnol Ctr, Hong Kong, Hong Kong, Peoples R China

来源：

SURFACE SCIENCE | 2005年 / 599卷 / 1-3期

关键词：

titanium oxide; nanostructures; photochemistry; scanning electron microscopy;

D O I：

10.1016/j.susc.2005.09.038

中图分类号：

O64 [物理化学（理论化学）、化学物理学];

学科分类号：

070304 ; 081704 ;

摘要：

A well-adherent surface of titanium oxide nanoparticles was produced on cellulose fibers at low temperature from an aqueous titania sol that was obtained via hydrolysis and condensation reactions of titanium isopropoxide in water. SEM investigations of the formed titania films revealed a semi-spherical particle morphology with grain size about 10 nm in diameter. The coated substrates showed substantial bactericidal properties under UV radiation, ambient fluorescent white light and dark conditions. The possible mechanisms for the antibacterial activity are discussed. The stability of the titania, coatings was investigated by comparing the UV transmission profiles of coated fibers before and after repeated washing. (c) 2005 Elsevier B.V. All rights reserved.

引用

页码：69 / 75

页数：7

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