Functionalized magnetite / silica nanocomposite for oily wastewater treatment
作者： Seyfollah Gilak Hakimabadi , Ali Ahmadpour , Mohammad T. Hamed Mosavian , Tahereh Rohani Bastami
DOI: 10.12989/AER.2015.4.2.069
关键词:
摘要: A new magnetite-silica core/shell nanocomposite (Fe3O4@nSiO2@mSiO2) was synthesized and functionalized with trimethylchlorosilane (TMCS). The prepared used for the removal of diesel oil from aqueous media. characterization studied by X-ray diffraction (XRD), Fourier transform infrared (FTIR), transmission electron microscopy (TEM), surface area measurement, vibrating sample magnetization (VSM). Results have shown that desired structure obtained modification successfully carried out. FTIR analysis has confirmed presence TMCS on magnetite silica nanocomposites. lowangle XRD pattern nanocomposites indicated mesoscopic shell. Furthermore, TEM results porous Adsorption kinetic studies able to remove 80% contaminant during 2 h fit well pseudo-second order model. Equilibrium at room temperature showed experimental data fitted Freundlich isotherm. magnetic property facilitated separation solid phase solution.
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