Removal of Chromium(VI) from Aqueous Solution Using a Novel Green Magnetic Nanoparticle – Chitosan Adsorbent
作者： Ecaterina Matei , Andra Mihaela Predescu , Maria Râpă , Claudia Tarcea , Cristian Mircea Pantilimon
DOI: 10.1080/00032719.2019.1601734
关键词: Desorption 、 Nuclear chemistry 、 Freundlich equation 、 Adsorption 、 Fourier transform infrared spectroscopy 、 Chromium 、 Magnetite 、 Hexavalent chromium 、 Sorption 、 Chemistry
摘要: AbstractA nanocomposite (ION-CS) consisting of magnetite nanoparticles (ION) physically mixed with chitosan (CS) was synthesized by a green protocol in order to investigate the adsorption hexavalent chromium Cr(VI) from synthetic aqueous solutions. X-ray diffraction (XRD), scanning electron microscopy (SEM), and atomic force (AFM) were used characterize ION-CS nanomaterial comparison magnetite. Fourier transform infrared spectroscopy (FTIR), ultraviolet-visible spectroscopy, absorption equilibrium sorption on CS described Langmuir Freundlich isotherm models investigated. Finally, reusability investigated successive three sorption/desorption cycles. The results revealed that entrapped into matrix, having an average particle size range 10 15 nm. removal explored; significant enhancement t...
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