Antibacterial properties of TiO2 ceramic pellets prepared using nano TiO2 powder

被引：3
作者：
Yao Yadong [1 ]
Li Yongdi [1 ]
Shao Wei [1 ]
Kang Yunqing [1 ]
Wang Hongjing [2 ]
Huang Zhongbin [1 ]
Liao Xiaoming [1 ]
Yin Guangfu [1 ]
机构：
[1] Sichuan Univ, Coll Mat Sci & Engn, Chengdu 610064, Peoples R China
[2] Sichuan Univ, Affiliated Hosp 2, Chengdu 610041, Peoples R China
来源：
JOURNAL OF WUHAN UNIVERSITY OF TECHNOLOGY-MATERIALS SCIENCE EDITION | 2009年 / 24卷 / 03期
关键词：
TiO2 ceramic pellet; photocatalysis; antibacterial properties; TITANIUM-DIOXIDE; POLYCHROMATIC IRRADIATION; PHOTOCONDUCTIVITY; GROWTH; MICRON; FILMS;
D O I：
10.1007/s11595-009-3337-0
中图分类号：
T [工业技术];
学科分类号：
08 ;
摘要：
Titanium dioxide (TiO2) porous ceramic pellets with three dimension nano-structure were prepared using nano TiO2 powder. The TiO2 porous ceramic pellets were composed of TiO2 nanoparticles with 14-16 nm in diameter and had porosity of 74.85%. The mean pore size of the TiO2 porous ceramic pellets was 20.73 nm and the main pore size ranged from 3 to 16 nm. The mass loss of the TiO2 ceramic pellets was less than 5% after 20 d immersion in water. The antibacterial properties of the TiO2 pellets were studied. The sterilization rate of Colibacillus (hospital polluted water with bacterium) can reach 99% after 3 h photocatalytic process and these TiO2 pellets are easy to be re-activated and cyclically be used. The shaping mechanism and photocatalysis sterilization mechanism of the TiO2 pellets were discussed.
引用
收藏
页码：337 / 342
页数：6
相关论文
共 19 条
[1]   Photocatalytic coatings for environmental applications [J].
Allen, NS ;
Edge, M ;
Sandoval, G ;
Verran, J ;
Stratton, J ;
Maltby, J .
PHOTOCHEMISTRY AND PHOTOBIOLOGY, 2005, 81 (02) :279-290
[2]   Interrelationship of spectroscopic properties with the thermal and photochemical behaviour of titanium dioxide pigments in metallocene polyethylene and alkyd based paint films: micron versus nanoparticles [J].
Allen, NS ;
Edge, M ;
Sandoval, G ;
Ortega, A ;
Liauw, CM ;
Stratton, J ;
McIntyre, RB .
POLYMER DEGRADATION AND STABILITY, 2002, 76 (02) :305-319
[3]   The survival and growth of an environmental Klebsiella isolate in detergent solutions [J].
Beadle, IR ;
Verran, J .
JOURNAL OF APPLIED MICROBIOLOGY, 1999, 87 (05) :764-769
[4]   Application of the photocatalytic chemistry of titanium dioxide to disinfection and the killing of cancer cells [J].
Blake, DM ;
Maness, PC ;
Huang, Z ;
Wolfrum, EJ ;
Huang, J ;
Jacoby, WA .
SEPARATION AND PURIFICATION METHODS, 1999, 28 (01) :1-50
[5]  
BLOCK SS, 1997, J SOLAR ENERGY ENG, V119, P185
[6]   A chemiluminescence study of micron and nanoparticle titanium dioxide: effect on the thermal stability of metallocene polyethylene [J].
Corrales, T ;
Peinado, C ;
Allen, NS ;
Edge, M ;
Sandoval, G ;
Catalina, F .
JOURNAL OF PHOTOCHEMISTRY AND PHOTOBIOLOGY A-CHEMISTRY, 2003, 156 (1-3) :151-160
[7]   Microwave photodielectric and photoconductivity studies on titanium dioxide exposed to continuous, polychromatic irradiation Part I: A novel analytical tool to assess the photoactivity of titanium dioxide [J].
Edge, M ;
Janes, R ;
Robinson, J ;
Allen, N ;
Thompson, F ;
Warman, J .
JOURNAL OF PHOTOCHEMISTRY AND PHOTOBIOLOGY A-CHEMISTRY, 1998, 113 (02) :171-180
[8]   Microwave photodielectric and photoconductivity studies on titanium dioxide exposed to continuous polychromatic irradiation; Part II: Correlation of the microwave response with changes in sample microstructure during milling [J].
Janes, R ;
Edge, M ;
Robinson, J ;
Rigby, J ;
Allen, N .
JOURNAL OF PHOTOCHEMISTRY AND PHOTOBIOLOGY A-CHEMISTRY, 1999, 127 (1-3) :111-115
[9]   The effect of sample treatment and composition on the photoluminescence of anatase pigments [J].
Janes, R ;
Edge, M ;
Rigby, J ;
Mourelatou, D ;
Allen, NS .
DYES AND PIGMENTS, 2001, 48 (01) :29-34
[10]   Mechanism of the photocatalytic inactivation of Lactobacillus casei phage PL-1 by titania thin film [J].
Kashige, N ;
Kakita, Y ;
Nakashima, Y ;
Miake, F ;
Watanabe, K .
CURRENT MICROBIOLOGY, 2001, 42 (03) :184-189
12