Journal article
Transport of Rhodium(III) from Chloride Media across a Polymer Inclusion Membrane Containing an Ionic Liquid Metal Ion Carrier
Takafumi Hanada, Mochamad Lutfi Firmansyah, Wataru Yoshida, Fukiko Kubota, Spas D Kolev, Masahiro Goto
ACS OMEGA | AMER CHEMICAL SOC | Published : 2020
Open access
Abstract
Efficient and selective transport of rhodium(III) across a polymer inclusion membrane (PIM) from a 0.1 mol dm-3 HCl feed solution, also containing iron(III), to a receiving solution containing 0.1 mol dm-3 HCl and 4.9 mol dm-3 NH4Cl was achieved using a phosphonium-type ionic liquid, trioctyl(dodecyl)phosphonium chloride (P88812Cl), as the metal ion carrier. The optimum PIM composition for the Rh(III) transport was 50 wt % poly(vinylidene-co-hexafluoropropylene) (PVDF-HFP), 30 wt % P88812Cl, and 20 wt % plasticizer 2-nitrophenyl octyl ether (2NPOE). The driving force for the Rh(III) transport was suggested to be the concentration difference of the chloride ion between the feed and the receiv..
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Awarded by Environment Research and Technology Development Fund (ERTDF) from the Ministry of the Environment of Japan
Awarded by JSPS KAKENHI
Funding Acknowledgements
This work was supported by the Environment Research and Technology Development Fund (ERTDF, 3-1710) from the Ministry of the Environment of Japan, and JSPS KAKENHI Grant Number JP19K05126. The authors are grateful to the Center of Advanced Instrumental Analysis, Kyushu University, for help with the SEM measurements.