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Molecules 2018, 23(3), 562;

Modification and Characterization of Fe3O4 Nanoparticles for Use in Adsorption of Alkaloids

College of Animal Science and Veterinary Medicine, Tianjin Agricultural University, Tianjin 300384, China
Guangxi Key Laboratory for the Chemistry and Molecular Engineering of Medicinal Resources, Chemical and Pharmaceutical College of Guangxi Normal University, Guilin 541004, China
Authors to whom correspondence should be addressed.
Received: 27 January 2018 / Revised: 23 February 2018 / Accepted: 27 February 2018 / Published: 2 March 2018
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Magnetite (Fe3O4) is a ferromagnetic iron oxide of both Fe(II) and Fe(III), prepared by FeCl2 and FeCl3. XRD was used for the confirmation of Fe3O4. Via the modification of Tetraethyl orthosilicate (TEOS), (3-Aminopropyl)trimethoxysilane (APTMS), and Alginate (AA), Fe3O4@SiO2, Fe3O4@SiO2-NH2, and Fe3O4@SiO2-NH2-AA nanoparticles could be obtained, and IR and SEM were used for the characterizations. Alkaloid adsorption experiments exhibited that, as for Palmatine and Berberine, the most adsorption could be obtained at pH 8 when the adsorption time was 6 min. The adsorption percentage of Palmatine was 22.2%, and the adsorption percentage of Berberine was 23.6% at pH 8. Considering the effect of adsorption time on liquid phase system, the adsorption conditions of 8 min has been chosen when pH 7 was used. The adsorption percentage of Palmatine was 8.67%, and the adsorption percentage of Berberine was 7.25%. Considering the above conditions, pH 8 and the adsorption time of 8min could be chosen for further uses. View Full-Text
Keywords: Fe3O4; modification; alginate; alkaloid Fe3O4; modification; alginate; alkaloid

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This is an open access article distributed under the Creative Commons Attribution License which permits unrestricted use, distribution, and reproduction in any medium, provided the original work is properly cited (CC BY 4.0).

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Yang, L.; Tian, J.; Meng, J.; Zhao, R.; Li, C.; Ma, J.; Jin, T. Modification and Characterization of Fe3O4 Nanoparticles for Use in Adsorption of Alkaloids. Molecules 2018, 23, 562.

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