Study on preparation and antibacterial property of Cu/TiO2 composite nanoparticles

被引：0

作者：

Hu, Y. L. ^{[1
,2
]}

Liu, H. F. ^{[1
]}

Chen, W. R. ^{[4
]}

Guo, X. P. ^{[1
]}

Chen, D. B. ^{[2
]}

Hu, J. H. ^{[3
]}

机构：

[1] Huazhong Univ Sci & Technol, Dept Chem, Wuhan 430074, Peoples R China

[2] Naval Univ Engn, Coll Sci, Wuhan 430073, Peoples R China

[3] Huazhong Univ Sci & Technol, Fac Mat Sci & Engn, Wuhan 430074, Peoples R China

[4] Naval Univ Engn, Off Res & Dev, Wuhan 430073, Peoples R China

来源：

2008 2ND IEEE INTERNATIONAL NANOELECTRONICS CONFERENCE, VOLS 1-3 | 2008年

关键词：

Cu/TiO2 composite nanoparticles; photoreduction; antibacterial performance;

D O I：

暂无

中图分类号：

TM [电工技术]; TN [电子技术、通信技术];

学科分类号：

0808 ; 0809 ;

摘要：

Cu/TiO2 composite nanoparticles were prepared by photoreduction deposition methods. The properties of the nanoparticles were widely characterized by X-ray diffraction (XRD), transmission electron microscopy (TEM) equipped with energy dispersive X-ray spectroscopy (EDS). Moreover, the antibacterial performances were performed by zone of inhibition (ZOI) tests against the bacteria species. The results suggested that the pH value had great Influence on the properties of Cu/TiO2 composite nanoparticles. Cu element tends to exist as Cu2O when the pH Is high, but Cu element does as pure Cu phase when pH value Is low. With the increase of UV Irradiation time, Cu phases are subsequently oxidized to Cu2O, and the amount of Cu2O in composite nanoparticles increased. The antibacterial activities of composite nanoparticles against Staphylococcus aureus are well and enhanced with the increase of the CU20 amount The synergistic effect was found between Cu and TiO2.

引用

页码：402 / +

页数：2

共 20 条

[1] Time scales and pH dependences of the redox processes determining the photocatalytic efficiency of TiO2 nanoparticles from periodic illumination experiments in the stochastic regime [J].

Cornu, CJG ;

Colussi, AJ ;

Hoffmann, MR .

JOURNAL OF PHYSICAL CHEMISTRY B, 2003, 107 (14) :3156-3160

[2] Microstructure and antibacterial properties of AISI 420 stainless steel implanted by copper ions [J].

Dan, ZG ;

Ni, HW ;

Xu, BF ;

Xiong, J ;

Xiong, PY .

THIN SOLID FILMS, 2005, 492 (1-2) :93-100

[3] Silver-coated megaendoprostheses in a rabbit model - an analysis of the infection rate and toxicological side effects [J].

Gosheger, G ;

Hardes, J ;

Ahrens, H ;

Streitburger, A ;

Buerger, H ;

Erren, M ;

Gunsel, A ;

Kemper, FH ;

Winkelmann, W ;

von Eiff, C .

BIOMATERIALS, 2004, 25 (24) :5547-5556

[4] A novel antibacterial titania coating:: Metal ion toxicity and in vitro surface colonization [J].

Heidenau, F ;

Mittelmeier, W ;

Detsch, R ;

Haenle, M ;

Stenzel, F ;

Ziegler, G ;

Gollwitzer, H .

JOURNAL OF MATERIALS SCIENCE-MATERIALS IN MEDICINE, 2005, 16 (10) :883-888

[5] Photoinduced Agn0 cluster deposition -: Photoreduction of Ag+ ions on a TiO2-coated quartz crystal microbalance monitored in real time [J].

Hidaka, Hisao ;

Honjo, Haruo ;

Horikoshi, Satoshi ;

Serpone, Nick .

SENSORS AND ACTUATORS B-CHEMICAL, 2007, 123 (02) :822-828

[6] ENVIRONMENTAL APPLICATIONS OF SEMICONDUCTOR PHOTOCATALYSIS [J].

HOFFMANN, MR ;

MARTIN, ST ;

CHOI, WY ;

BAHNEMANN, DW .

CHEMICAL REVIEWS, 1995, 95 (01) :69-96

[7]

Huang Z, 2000, J PHOTOCH PHOTOBIO A, V130, P163, DOI DOI 10.1016/S1010-6030(99)00205-1

[8] Mineralization of bacterial cell mass on a photocatalytic surface in air [J].

Jacoby, WA ;

Maness, PC ;

Wolfrum, EJ ;

Blake, DM ;

Fennell, JA .

ENVIRONMENTAL SCIENCE & TECHNOLOGY, 1998, 32 (17) :2650-2653

[9] Photocatalytic inhibition of algae growth using TiO2, WO3, and cocatalyst modifications [J].

Linkous, CA ;

Carter, GJ ;

Locuson, DB ;

Ouellette, AJ ;

Slattery, DK ;

Smitha, LA .

ENVIRONMENTAL SCIENCE & TECHNOLOGY, 2000, 34 (22) :4754-4758

[10]

Maness PC, 1999, APPL ENVIRON MICROB, V65, P4094

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