In vitro apatite formation and visible-light photocatalytic activity of Ti metal subjected to chemical and thermal treatments

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	In vitro apatite formation and visible-light photocatalytic activity of Ti metal subjected to chemical and thermal treatments
	M. Kawashita; Y. Yokohama; X. Y. Cui; T. Miyazaki; H. Kanetaka
	2014
发表期刊	Ceramics International
ISSN	0272-8842
卷号	40 期号:8 页码:12629-12636
摘要	In this study, we investigated the surface structure, apatite formation in simulated body fluid (SBF), and visible-light photocatalytic activity of Ti metal subjected to chemical and thermal treatments. Ti metal samples treated with NaOH, a nitrogen-containing solution (0.1 M HNO3, 0.1-1.0 M (H2N)(2)C = O, or 0.1-1.0 M NH4Cl), and heat showed apatite formation on their surfaces in SBF, whereas those treated with NaOH, 0.5 or 1.0 M HNO3, and heat did not. In the former case, apatite formation may be attributable to the fine network structure of anatase-type TiO2 doped with a small amount of nitrogen on the surface of the Ti metal. The Ti metal treated with the latter treatment showed higher methylene blue decomposition than the untreated sample and the one treated with the former treatment. This preliminary result suggests that Ti metal treated with NaOH, 0.1 M HNO3, and heat can potentially show visible-light-induced antibacterial property as well as bone-bonding ability. (C) 2014 Elsevier Ltd and Techna Group S.r.l. All rights reserved.
部门归属	[kawashita, masakazu ; yokohama, yuto ; cui, xinyu] tohoku univ, grad sch biomed engn, sendai, miyagi 9808579, japan. [cui, xinyu] chinese acad sci, inst met res, shenyang 110016, peoples r china. [miyazaki, toshiki] kyushu inst technol, grad sch life sci & syst engn, kitakyushu, fukuoka 8080196, japan. [kanetaka, hiroyasu] tohoku univ, grad sch dent, liaison ctr innovat dent, sendai, miyagi 9808575, japan. ; kawashita, m (reprint author), tohoku univ, grad sch biomed engn, sendai, miyagi 9808579, japan. ; m-kawa@ecei.tohoku.ac.jp
关键词	Apatite Titanium Metal Visible-light Photocatalytic Activity Simulated Body Fluid Titanium Metal Bioactive Titanium Surface-structure Forming Ability Heat-treatment Naoh Antibacterial Oxide Acid
URL	查看原文
语种	英语
文献类型	期刊论文
条目标识符	http://ir.imr.ac.cn/handle/321006/73256
专题	中国科学院金属研究所
推荐引用方式 GB/T 7714	M. Kawashita,Y. Yokohama,X. Y. Cui,et al. In vitro apatite formation and visible-light photocatalytic activity of Ti metal subjected to chemical and thermal treatments[J]. Ceramics International,2014,40(8):12629-12636.
APA	M. Kawashita,Y. Yokohama,X. Y. Cui,T. Miyazaki,&H. Kanetaka.(2014).In vitro apatite formation and visible-light photocatalytic activity of Ti metal subjected to chemical and thermal treatments.Ceramics International,40(8),12629-12636.
MLA	M. Kawashita,et al."In vitro apatite formation and visible-light photocatalytic activity of Ti metal subjected to chemical and thermal treatments".Ceramics International 40.8(2014):12629-12636.