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Journal of Applied Chemical Research
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Anbia, M., Mehrizi, R. (2016). Separation and Recovery of Platinum by Magnetic Coreshell Nanostructures Modified with N-(2-aminoethyl)-3- aminopropyltrimethoxysilane. Journal of Applied Chemical Research, 10(2), 39-49.
Mansoor Anbia; Ruholla Mehrizi. "Separation and Recovery of Platinum by Magnetic Coreshell Nanostructures Modified with N-(2-aminoethyl)-3- aminopropyltrimethoxysilane". Journal of Applied Chemical Research, 10, 2, 2016, 39-49.
Anbia, M., Mehrizi, R. (2016). 'Separation and Recovery of Platinum by Magnetic Coreshell Nanostructures Modified with N-(2-aminoethyl)-3- aminopropyltrimethoxysilane', Journal of Applied Chemical Research, 10(2), pp. 39-49.
Anbia, M., Mehrizi, R. Separation and Recovery of Platinum by Magnetic Coreshell Nanostructures Modified with N-(2-aminoethyl)-3- aminopropyltrimethoxysilane. Journal of Applied Chemical Research, 2016; 10(2): 39-49.

Separation and Recovery of Platinum by Magnetic Coreshell Nanostructures Modified with N-(2-aminoethyl)-3- aminopropyltrimethoxysilane

Article 4, Volume 10, Issue 2, Spring 2016, Page 39-49  XML PDF (832.33 K)
Document Type: Research Paper
Authors
Mansoor Anbia* ; Ruholla Mehrizi
Abstract
In this paper, Fe3 O4 @SiO2 core/shell magnetic nanostructure has been synthesized and modified by N-(2-aminoethyl)-3-aminopropyltrimethoxysilane (AEAPTMS). Fe3 O4 @SiO2 was used as a novel adsorbent for separation of hexachloroplatinic acid. X-ray diffraction (XRD), scanning electron microscopy (SEM), and FT-IR technique were used to characterize morphologies and surface texturing of these adsorbents. The effective factors on adsorption, such as pH, contact time; salt effect and temperature were studied systematically. The optimal conditions of Platinum adsorption were obtained at temperature of about 25o C, pH about 2.5 and the equilibrium time of 30-40 minutes. The maximum adsorption capacity (qmax) in the optimal conditions was equal to 74 mg/g. The magnetic separation of the absorbent was achieved by a magnet and finally the absorbent was compared with other absorbents. Inductive coupled plasma optical emission spectrometer (ICP-OES) was used for determination of metal ion concentrations in the aqueous solution.
Keywords
Platinum; Adsorption; Magnetic core-shell; Nanostructure; Magnetic separation
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