Baczynska, M.; Regel, M.; Coll, M.T.; Fortuny, A.; Sastre, A.; Wisniewski, M. Separation science and technology Vol. 51, p. 2639-2648 DOI: 10.1080/01496395.2016.1174265 Data de publicació: 2016-04 Article en revista
In this work transport of Zn(II), Fe(II) and Fe(III) ions from chloride aqueous solutions across polymer inclusion membranes (PIMs) and supported liquid membranes (SLMs) containing one of three phosphonium ionic liquids: trihexyl(tetradecyl)phosphonium chloride (Cyphos IL 101), trihexyl(tetradecyl)phosphonium bis(2,4,4-trimethylpentyl)phosphinate (Cyphos IL 104) and tributyl(tetradecyl)phosphonium chloride (Cyphos IL 167) as an ion carrier was reported. The results show that Zn(II) and Fe(III) are effectively transported through PIMs and SLMs, while Fe(II) transport is not effective. The highest values of initial flux and permeability coefficient of Zn(II) were noticed for SLM containing Cyphos IL 167. Cyphos IL 101-containing SLM is more stable than PIM.
This is an Accepted Manuscript of an article published by Taylor & Francis Group in Separation Science and Technology on 18/04/2016, available online: http://www.tandfonline.com/doi/full/10.1080/01496395.2016.1174265
Guibal, E.; Figuerola , A.; Ruiz, M.; Vincent, T.; Sastre, A.; Jouannin, C. Separation science and technology Vol. 45, num. 12-13, p. 1935-1949 DOI: 10.1080/01496395.2010.493113 Data de publicació: 2010-01 Article en revista
Four phosphonium ionic liquids (Cyphos IL-101, IL-105, IL-109,
and IL-111) have been immobilized in composite biopolymer capsules
(alginate/gelatin). The resins were tested for Cd(II) sorption
in HCl solutions. Cyphos IL-111 being solid at room temperature,
the phase change contributes to the formation of large vesicles in
the resin particle. Sorption isotherms were not affected by the
anionic counterpart (chloride, dicyanamide, or tetrafluoroborate),
except with bistriflamide (Cd(II) was not sorbed). HCl concentration
(0.1–4.6 M) did not influence the Cd(II) uptake (60 mg
Cd g 1). Kinetic profiles were modeled using the intraparticle
diffusion equation. Highly porous foams have been developed as an
alternative to resin beads in order to improve diffusion characteristics.