期刊
APPLIED SURFACE SCIENCE
卷 318, 期 -, 页码 297-304出版社
ELSEVIER SCIENCE BV
DOI: 10.1016/j.apsusc.2014.06.069
关键词
Fe3O4 nanoparticles; Silane compounds; Surface modification
类别
资金
- Ankara University Research Fund (Turkey) [1204343003, 1384343006]
Magnetic Fe3O4 nanoparticles were synthesized by the co-precipitation method and modified with three different silane compounds (3-(trimethoxysilyl)propyl methacrylate, MPTMS; 3-(triethoxysilyl)propyl methacrylate, MPTES and triethoxyvinylsilane, VS). The nanoparticles were analyzed by FTIR, TEM, XRD, SEM-EDS, TGA and VSM. In addition, contact angle measurements were performed to determine the modification efficiency of silanes. The average particle size of Fe3O4 nanoparticles was found as 8.8 +/- 1.8 nm. The results showed that the structure of Fe3O4 nanoparticles were not affected by the surface modification. The most effective modification was obtained by VS with 7.8 +/- 1.0 nm average particle size and 83% (<= 10 nm) particle size distribution. VSM curves showed that Fe3O4 and also surface modified nanoparticles exhibited superparamagnetic behaviour. (C) 2014 Elsevier B.V. All rights reserved.
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