TY - JOUR
T1 - Transport of Rhodium(III) from Chloride Media across a Polymer Inclusion Membrane Containing an Ionic Liquid Metal Ion Carrier
AU - Hanada, Takafumi
AU - Firmansyah, Mochamad Lutfi
AU - Yoshida, Wataru
AU - Kubota, Fukiko
AU - Kolev, Spas D.
AU - Goto, Masahiro
AU - Goto, Masahiro
N1 - Funding Information:
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.
Funding Information:
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.
Publisher Copyright:
Copyright © 2020 American Chemical Society.
PY - 2020/6/9
Y1 - 2020/6/9
N2 - 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 receiving solutions. More than 70% rhodium(III) could be recovered from the receiving solution, and no transport of iron(III) was observed; however, the two metal ions cannot be separated by liquid-liquid extraction. This is the first report of selective transport of rhodium(III) across a polymer inclusion membrane.
AB - 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 receiving solutions. More than 70% rhodium(III) could be recovered from the receiving solution, and no transport of iron(III) was observed; however, the two metal ions cannot be separated by liquid-liquid extraction. This is the first report of selective transport of rhodium(III) across a polymer inclusion membrane.
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U2 - 10.1021/acsomega.0c00867
DO - 10.1021/acsomega.0c00867
M3 - Article
AN - SCOPUS:85085882491
SN - 2470-1343
VL - 5
SP - 12989
EP - 12995
JO - ACS Omega
JF - ACS Omega
IS - 22
ER -