Surface-modified antibacterial TiO2/Ag+ nanoparticles:: Preparation and properties

被引：172

作者：

Cheng, Qilin

Li, Chunzhong

Pavlinek, Vladimir

Saha, Petr

Wang, Huanbing

机构：

[1] E China Univ Sci & Technol, Sch Mat Sci & Engn, Minist Educ, Key Lab Ultrafine Mat, Shanghai 200237, Peoples R China

[2] Tomas Bata Univ, Fac Technol, Ctr Polymer, Zlin 76272, Czech Republic

来源：

APPLIED SURFACE SCIENCE | 2006年 / 252卷 / 12期

基金：

中国国家自然科学基金;

关键词：

TiO2/Ag+ nanoparticles; surface modification; APS; antibacterial property;

D O I：

10.1016/j.apsusc.2005.06.022

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：

Studies were performed on surface modification of antibacterial TiO2/Ag+ nanoparticles by grafting gamma-aminopropyltriethoxysilane (APS). The interfacial structure of the modified particles was characterized by Fourier-transform infrared spectroscopy, X-ray photoelectron spectroscopy, transmission electron microscopy and thermogravimetric analysis. The thickness of the surface layer was determined by using Auger electron spectroscopy (AES). The results show that APS is chemically bonded to the surface of antibacterial TiO2/Ag+ nanoparticles. Furthermore, the modified particles were mixed in PVC to prepare composites whose antibacterial property was investigated. The results suggest that surface modification has no negative effect on antibacterial activity of TiO2/Ag+ nanoparticles and PVC-TiO2/Ag+ composites exhibits good antibacterial property. (c) 2005 Elsevier B.V. All rights reserved.

引用

页码：4154 / 4160

页数：7

共 14 条

[1] Adsorption of organic dyes on the aminosilane modified TiO2 surface [J].

Andrzejewska, A ;

Krysztafkiewicz, A ;

Jesionowski, T .

DYES AND PIGMENTS, 2004, 62 (02) :121-130

[2] Surface properties and bio-acceptability of Ti2O3 surfaces [J].

Botha, SJ .

MATERIALS SCIENCE AND ENGINEERING A-STRUCTURAL MATERIALS PROPERTIES MICROSTRUCTURE AND PROCESSING, 1998, 243 (1-2) :221-230

[3]

EDWARDS N, 1987, Patent No. 251783

[4] LIGHT-INDUCED REDOX REACTIONS IN NANOCRYSTALLINE SYSTEMS [J].

HAGFELDT, A ;

GRATZEL, M .

CHEMICAL REVIEWS, 1995, 95 (01) :49-68

[5] Study on surface modification of ultrafine inorganic antibacterial particles [J].

He, JH ;

Ma, WS ;

Tan, SZ ;

Zhao, HQ .

APPLIED SURFACE SCIENCE, 2005, 241 (3-4) :279-286

[6] Effects of coupling agents on the mechanical properties improvement of the TiO2 reinforced epoxy system [J].

Hussain, M ;

Nakahira, A ;

Nishijima, S ;

Niihara, K .

MATERIALS LETTERS, 1996, 26 (06) :299-303

[7]

Ismail H., 2000, POLYM TEST, V20, P65

[8] Antibacterial silver-containing silica glass prepared by sol-gel method [J].

Kawashita, M ;

Tsuneyama, S ;

Miyaji, F ;

Kokubo, T ;

Kozuka, H ;

Yamamoto, K .

BIOMATERIALS, 2000, 21 (04) :393-398

[9]

LIN J, 1999, POLYM PREPR, V40, P150

[10] Surface characteristics of hydrous silica-coated TiO2 particles [J].

Lin, YL ;

Wang, TJ ;

Jin, Y .

POWDER TECHNOLOGY, 2002, 123 (2-3) :194-198

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