Article ID | Journal | Published Year | Pages | File Type |
---|---|---|---|---|
598512 | Colloids and Surfaces A: Physicochemical and Engineering Aspects | 2006 | 4 Pages |
Abstract
Different amounts of tetramethylammonium hydroxide (TMA) were employed to peptize the Fe3O4 magnetic nanoparticles. Electrophoresis measurements show that the stability of the magnetic nanoparticles is dependent on the amount of TMA used. After growth of the silica protection layer on the nanoparticle surface, Fe3O4/SiO2 composite core/shell particles with different number of cores were synthesized. Under the optimal amount of TMA used, uniform Fe3O4/SiO2 composite core/shell nanoparticles with a poly-dispersivity of 10.8% were prepared.
Related Topics
Physical Sciences and Engineering
Chemical Engineering
Colloid and Surface Chemistry
Authors
Ziyang Lu, Gang Wang, Jiaqi Zhuang, Wensheng Yang,