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Adsorption of Cu(II), Zn(II), Ni(II), Pb(II), and Cd(II) from aqueous solution on Amberlite IR-120 synthetic resin
Scopus
Toplam 344 atıf DOI
The adsorption of copper(II), zinc(II), nickel(II), lead(II), and cadmium(II) on Amberlite IR-120 synthetic sulfonated resin has been studied at different pH and temperatures by batch process. The effects of parameters such as amount of resin, resin contact time, pH, and temperature on the ion exchange separation have been investigated. For the determination of the adsorption behavior of the resin, the adsorption isotherms of metal ions have also been studied. The concentrations of metal ions have been measured by batch techniques and with AAS analysis. Adsorption analysis results obtained at various concentrations showed that the adsorption pattern on the resin followed Freundlich isotherms. Here we report the method that is applied for the sorption/separation of some toxic metals from their solutions. © 2004 Elsevier Inc. All rights reserved.
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Preparation of polymer inclusion membrane with sodium diethyldithiocarbamate as a carrier reagent for selective transport of zinc ions
Scopus
Havuzumuzda Open Access 11 atıf almış
This study reports the design of a new type of polymer inclusion membrane (PIM) for selective transport of zinc ion. Sodium diethyldithiocarbamate (NaDDTC) was incorporated in the cellulose acetate-based membrane as a carrier for Zn(II) ion. The PIMs were characterized using Fourier transform infrared spectroscopy, scanning electron microscopy, atomic force microscopy and contact angle measurements. The effects of parameters, including concentration of Zn(II) in the feed phase, HCl in the stripping phase and amount of NaDDTC incorporated in the membrane, on the transport of Zn(II) ion were studied. For 1 × 10-4 M of Zn(II) ion in the feed phase at pH 5.04, 96% of Zn(II) ion was transported through the PIMs prepared with 1.0 (wt%) diethyldithiocarbamate via 0.5 M HCl as a stripping phase. The diffusion of Zn(II) ions through the membrane was governed by complex formation between Zn(II) ion and NaDDTC in the membrane. Moreover, selective transport of Zn(II) ion was achieved in the presence of divalent metal ions involving Cu(II), Pb(II) and Ni(II). The prepared PIM provided reproducible transport efficiency, and it can be efficiently used in separation processes.
Atıf Yapan Makale Bilgileri
Kurumlar (2)
Necmettin Erbakan Üniversitesi
Meram, Turkey
Selçuk Üniversitesi
Selçuklu, Turkey