2014-Sustainable Industrial Processing Summit
SIPS 2014 Volume 5: Composite, Ceramic, Quasi-crystals, Nanomaterials & Coatings
| Editors: | Kongoli F |
| Publisher: | Flogen Star OUTREACH |
| Publication Year: | 2014 |
| Pages: | 578 pages |
| ISBN: | 978-1-987820-07-2 |
| ISSN: | 2291-1227 (Metals and Materials Processing in a Clean Environment Series) |
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Synthesis of magnetic Nano - Fe3 O4 with tunable size
Weijia Wang1; Xueyi Guo1; Qinghua Tian1; Wenbo Ning1; Fangfang Mao1;1CENTRAL SOUTH UNIVERSITY, Changsha, China;
Type of Paper: Regular
Id Paper: 113
Topic: 16
Abstract:
Super paramagnetic iron oxide nanoparticles (SPIONs) have shown great promise in biomedical applications. Here, we report a systematic study of functionalization of tunable size Fe3O4 nanoparticles. Novel nano-Fe3O4 based composites with functional groups have been prepared by solvent-thermal method. By adjusting the molar ratios of Fe3+ and carboxylate, nano-Fe3O4 particles with various size distributions from 800 nm to 1210 nm can be obtained. By adding NaOH content, the morphology of Fe3O4 nanoparticle can be controlled from sphere to regular octahedron. When protecting from silica coat, which forms core-shell structures, several functional groups (-COOH, -NH2, and -SH nanoparticle) are grafted on the surface of Fe3O4 as the activating group to absorb heavy metal ions (e.g, Pb+, Cd2+). The absorption results show that nano-Fe3O4 based composite maintains an effective performance of removing heavy metal ions, suggesting that the nano-Fe3O4 based composite could become a potential medicine for heavy metal poisoning therapy.