Preparation and long-term antibacterial activity of TiO2 nanotubes loaded with Ag nanoparticles and Ag ions

CORC > 青岛生物能源与过程研究所 > 中国科学院青岛生物能源与过程研究所 > 热化学转化事业部

	Preparation and long-term antibacterial activity of TiO2 nanotubes loaded with Ag nanoparticles and Ag ions
	Wei, Luyao 1; Wang, Hongfen 1; Wang, Zhiqi 2; Yu, Meiyan 1; Chen, Shougang 1
刊名	RSC ADVANCES
	2015
卷号	5 期号:91 页码:74347-74352
英文摘要	In this work anatase TiO2 nanotubes were prepared by hydrothermally treating a suspension of anatase TiO2 particles in alkaline solutions without the following calcination process. Ag nanoparticles and Ag ions were both loaded on TiO2 nanotubes by immersion in AgNO3 solutions followed by ultraviolet light radiation. The chemical and morphological features of the products, and the Ag release properties were investigated. The results demonstrated that the "open-ended" anatase TiO2 nanotubes with diameters of about 10 nm and lengths of over 100 nm were successfully prepared; 15.3 wt% of AgNO3 was loaded into the hollow tubular nanostructures and 9.2 wt% of Ag nanoparticles adhered uniformly to the walls of the nanotubes. The "open-ended" hollow tubular nanostructure of TiO2 nanotubes could act as a controller for the Ag release, and this endowed the Ag-TiO2 nanotubes with an extended antibacterial period. The long-term antibacterial activities of the resultant Ag-TiO2 nanotubes were examined against both Gram-negative bacteria and Gram-positive bacteria. It was confirmed that the "open-ended" hollow tubular nanostructure of TiO2 nanotubes and the dual action of Ag nanoparticles and Ag ions allowed the Ag-TiO2 nanotubes to attain long-term antibacterial activity, which enhanced the antibacterial performance of Ag-based antibacterial agents.
WOS标题词	Science & Technology ; Physical Sciences
类目[WOS]	Chemistry, Multidisciplinary
研究领域[WOS]	Chemistry
关键词[WOS]	SILVER NANOPARTICLES ; TITANIA NANOTUBES ; ESCHERICHIA-COLI ; BACTERIA
收录类别	SCI
语种	英语
WOS记录号	WOS:000361116500026
公开日期	2015-12-24
内容类型	期刊论文
源URL	[http://ir.qibebt.ac.cn/handle/337004/6492]
专题	青岛生物能源与过程研究所_热化学转化事业部
作者单位	1.Ocean Univ China, Inst Mat Sci & Engn, Qingdao 266100, Peoples R China 2.Chinese Acad Sci, Qingdao Inst Bioenergy & Bioproc Technol, Qingdao 266101, Peoples R China
推荐引用方式 GB/T 7714	Wei, Luyao,Wang, Hongfen,Wang, Zhiqi,et al. Preparation and long-term antibacterial activity of TiO2 nanotubes loaded with Ag nanoparticles and Ag ions[J]. RSC ADVANCES,2015,5(91):74347-74352.
APA	Wei, Luyao,Wang, Hongfen,Wang, Zhiqi,Yu, Meiyan,&Chen, Shougang.(2015).Preparation and long-term antibacterial activity of TiO2 nanotubes loaded with Ag nanoparticles and Ag ions.RSC ADVANCES,5(91),74347-74352.
MLA	Wei, Luyao,et al."Preparation and long-term antibacterial activity of TiO2 nanotubes loaded with Ag nanoparticles and Ag ions".RSC ADVANCES 5.91(2015):74347-74352.