Fabrication of Surface-Modified One-Dimensional Titania Nanostructures in the Presence of Chitosan

被引：2

作者：

Zima, Tatyana ^{[1
,2
]}

Bataev, Ivan ^{[2
]}

Smirnov, Alexander ^{[2
]}

机构：

[1] Inst Solid State Chem & Mechanochem SB RAS, Novosibirsk 630128, Russia

[2] Novosibirsk State Tech Univ, Novosibirsk, Russia

来源：

MATERIALS AND MANUFACTURING PROCESSES | 2015年 / 30卷 / 05期

关键词：

Titania; Nanofiber; Ferromagnetism; Biofunctionality; Fabrication; Surface; Modification; Chitosan; Multilayered; COBALT;

D O I：

10.1080/10426914.2015.1004693

中图分类号：

T [工业技术];

学科分类号：

08 ;

摘要：

One-dimensional TiO2-based nanostructures with modified surface have been produced by alkaline hydrothermal treatment of TiO2 and CoTiO3 powders in the presence of bioactive natural polymer-chitosan-as the organic reagent. Nanostructures are characterized by multilayer morphology. However, characteristic interlayer distances are significantly higher than in those produced without chitosan. Moreover, thin bioorganic layers are observed on the surface of elongated structures produced by processing of TiO2 powder. Quite different surfaces with numerous Co-containing agglomerates of chitosan derivatives are detected when CoTiO3 powder is processed. After vacuum treatment at 600 degrees C and higher, Co-containing elongated nanostructures demonstrate the abnormal high ferromagnetic properties.

引用

页码：611 / 615

页数：5

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