Ag-doped TiO2 Nanocomposite Prepared by Sol Gel Method: Photocatalytic Bactericidal Under Visible Light and Characterization

被引:48
作者
Behpour, Mohsen [1 ]
Chakeri, Maryam [1 ]
机构
[1] Univ Kashan, Fac Chem, Dept Analyt Chem, Kashan, Iran
关键词
Nanocomposite; Titanium dioxide; Bactericidal effect; Visible light irradiation;
D O I
10.7508/jns.2012.02.011
中图分类号
TB3 [工程材料学];
学科分类号
0805 ; 080502 ;
摘要
In this reaserch, photocatalyst titanium dioxide was doped with silver and modified by polyethylene glycol by sol gel method and the samples were characterized by X-ray diffraction (XRD) and scanning electron microscopy (SEM). The purpose of the present study was to evaluate the photocatalytic bactericidal effects of prepared nanocomposite on human pathogenic bacteria under visible light irradiation whereas; many studies have been published on the use of titanium dioxide as a photocatalyst, which decomposes various organic compounds. We observed that TiO2 reveals the bactericidal property against the Staphylococcus aureus, Shigella dysanteriae, Salmonella enterica subsp. enterica serovar Paratyphi bacteria and pathogenic fungi Candidia albicans which is increased by the essence of silver and visible light. 2012 JNS All rights reserved
引用
收藏
页码:227 / 234
页数:8
相关论文
共 13 条
[1]   Effect of nominal doping of Ag and Ni on the crystalline structure and photo-catalytic properties of meso porous titania [J].
Bahadur, Nupur ;
Jain, Kiran ;
Srivastava, A. K. ;
Govind ;
Gakhar, Ruchi ;
Haranath, Divi ;
Dulat, M. S. .
MATERIALS CHEMISTRY AND PHYSICS, 2010, 124 (01) :600-608
[2]   The Impact of Anxiety-Inducing Distraction on Cognitive Performance: A Combined Brain Imaging and Personality Investigation [J].
Denkova, Ekaterina ;
Wong, Gloria ;
Dolcos, Sanda ;
Sung, Keen ;
Wang, Lihong ;
Coupland, Nicholas ;
Dolcos, Florin .
PLOS ONE, 2010, 5 (11)
[3]   Photocatalytic disinfection using titanium dioxide: spectrum and mechanism of antimicrobial activity [J].
Foster, Howard A. ;
Ditta, Iram B. ;
Varghese, Sajnu ;
Steele, Alex .
APPLIED MICROBIOLOGY AND BIOTECHNOLOGY, 2011, 90 (06) :1847-1868
[4]   TiO2 photocatalysis and related surface phenomena [J].
Fujishima, Akira ;
Zhang, Xintong ;
Tryk, Donald A. .
SURFACE SCIENCE REPORTS, 2008, 63 (12) :515-582
[5]   Effect of catalyst type on the kinetics of the photoelectrochemical disinfection of water inoculated with E-coli [J].
Harper, JC ;
Christensen, PA ;
Egerton, TA ;
Curtis, TP ;
Gunlazuardi, J .
JOURNAL OF APPLIED ELECTROCHEMISTRY, 2001, 31 (06) :623-628
[6]   Weak Polyion M.ultilayer-Assisted in Situ Synthesis as a Route toward a Plasmonic Ag/TiO2 Photocatalyst [J].
Logar, Manca ;
Jancar, Bostjan ;
Sturm, Saso ;
Suvorov, Danilo .
LANGMUIR, 2010, 26 (14) :12215-12224
[7]   A review on nano-TiO2 sol-gel type syntheses and its applications [J].
Macwan, D. P. ;
Dave, Pragnesh N. ;
Chaturvedi, Shalini .
JOURNAL OF MATERIALS SCIENCE, 2011, 46 (11) :3669-3686
[8]   Charge separation at the rutile/anatase interface: a dominant factor of photocatalytic activity [J].
Miyagi, T ;
Kamei, M ;
Mitsuhashi, T ;
Ishigaki, T ;
Yamazaki, A .
CHEMICAL PHYSICS LETTERS, 2004, 390 (4-6) :399-402
[9]   Two-Functional Direct Current Sputtered Silver-Containing Titanium Dioxide Thin Films [J].
Musil, J. ;
Louda, M. ;
Cerstvy, R. ;
Baroch, P. ;
Ditta, I. B. ;
Steele, A. ;
Foster, H. A. .
NANOSCALE RESEARCH LETTERS, 2009, 4 (04) :313-320
[10]   Copper-aided photo sterilization of microbial cells on TiO2 film under irradiation from a white light fluorescent lamp [J].
Sato, Takashi ;
Taya, Masahito .
BIOCHEMICAL ENGINEERING JOURNAL, 2006, 30 (02) :199-204