| Article ID | Journal | Published Year | Pages | File Type |
|---|---|---|---|---|
| 1642569 | Materials Letters | 2015 | 4 Pages |
•One-step synthesis of multihydroxy Fe3O4/HPG nanoparticle is reported.•The Fe3O4/HPG shows uniform size, excellent water-dispersibility and magnetic property.•The surface property of Fe3O4/HPG nanoparticle can be readily tailored.•Tailoring the surface of Fe3O4/HPG to afford multicarboxylic Fe3O4/HPG-COOH is reported.•The Fe3O4/HPG-COOH can work as a high-performance magnetic adsorbent toward cationic dyes.
A straightforward approach for fabricating multihydroxy hyperbranched polyglycerol (HPG) capped Fe3O4 (Fe3O4/HPG) nanoparticles is reported. The obtained Fe3O4/HPG nanoparticles with numerous surface hydroxyl groups show uniform size and shape, excellent water-dispersibility, and strong magnetic property. The surface property of Fe3O4/HPG nanoparticles can be readily tailored as confirmed by preparing multicarboxylic Fe3O4/HPG-COOH nanoparticles in this paper. On the basis of their excellent magnetic performance and multiple negatively charged carboxylic groups, the Fe3O4/HPG-COOH nanoparticles can be utilized as an efficient adsorbent to remove cationic dyes from water. Moreover, they can be regenerated and reused for several times without compromise of adsorption efficiency.
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