Title

Improving surfactant grafting in magnetic colloids

Authors

Authors

K. Z. Chen; A. F. Bakuzis;W. L. Luo

Comments

Authors: contact us about adding a copy of your work at STARS@ucf.edu

Abbreviated Journal Title

Appl. Surf. Sci.

Keywords

magnetic colloids; grafting number; nanostructures; RAMAN-SPECTROSCOPY; FLUIDS; COBALT; Chemistry, Physical; Materials Science, Coatings & Films; Physics, ; Applied; Physics, Condensed Matter

Abstract

The grafting number of surfactant coating on magnetite nanoparticles in a magnetic colloid (magnetic fluid), defined as the number of surfactant molecules adsorbed per surface area of nanoparticles, was successfully obtained from the atomic absorption spectroscopy and transmission electron microscopy. We found that the increases of grafting number with the molar concentration of surfactant and the adsorption temperature can be quantitatively measured, making it possible to produce well controlled, stable magnetic colloids that are precursors for many magnetic nanostructures. (c) 2006 Elsevier B.V. All rights reserved.

Journal Title

Applied Surface Science

Volume

252

Issue/Number

18

Publication Date

1-1-2006

Document Type

Article

Language

English

First Page

6379

Last Page

6382

WOS Identifier

WOS:000239735100039

ISSN

0169-4332

Share

COinS