Fabrication of carbon nanotubes/hydroxyapatite nanocomposites via an in situ process

被引：9

作者：

Lu, X. Y. ^{[1
]}

Zhang, N. Y. ^{[1
]}

Wei, L. ^{[1
]}

Wei, J. W. ^{[1
]}

Deng, Q. Y. ^{[1
]}

Lu, X. ^{[1
]}

Duan, K. ^{[1
]}

Weng, J. ^{[1
]}

机构：

[1] SW Jiaotong Univ, Sch Mat Sci & Engn, Minist Educ China, Key Lab Adv Technol Mat, Chengdu 610031, Peoples R China

来源：

APPLIED SURFACE SCIENCE | 2012年 / 262卷

关键词：

Nanocomposite; Hydroxyapatie; Carbon nanotube; In situ preparation; POLYMER NANOCOMPOSITES; NANOTUBES; COMPOSITES;

D O I：

10.1016/j.apsusc.2012.02.139

中图分类号：

O64 [物理化学（理论化学）、化学物理学];

学科分类号：

070304 ; 081704 ;

摘要：

Carbon nanotubes (CNTs)/hydroxyapatite (HA) nanocomposites with ferromagnetic properties have been fabricated via an in situ process in which a HA-based matrix was used as the catalyst for the growth of CNTs in a chemical vapor deposition system. The results showed that approximately 20 wt% of multi-walled CNTs with a mean diameter of 40-60 nm have been produced in the nanocomposites. The CNTs in the nanocomposites were observed to have an undamaged structure, with ordered graphitic layers and non-defective lattice structure on their walls. The growth of CNTs are shown to be in situ from the nano-HA crystallites. The compress mechanical properties of these CNTs/HA composites prepared by this method were significantly better than that of the composites prepared by physical mixing CNTs with HA particles. Magnetic measurement showed that the nanocomposites exhibit a ferromagnetic behavior with a saturation magnetization of 0.126 emu g(-1) at a room temperature. These magnetic nanocomposites could have a potential application in the drug delivery system as well as other biomedical fields. (c) 2012 Elsevier B.V. All rights reserved.

引用

页码：110 / 113

页数：4

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