TY - JOUR
T1 - Selective Separation of Platinum Group Metals via Sequential Transport through Polymer Inclusion Membranes Containing an Ionic Liquid Carrier
AU - Fajar, Adroit T.N.
AU - Hanada, Takafumi
AU - Firmansyah, Mochamad L.
AU - Kubota, Fukiko
AU - Goto, Masahiro
N1 - Funding Information:
This work was supported by the Environment Research and Technology Development Fund (ERTDF, 3-1710 and 3-2004) from the Ministry of the Environment of Japan. A.T.N.F. is grateful to the Ministry of Education, Culture, Sports, Science and Technology (MEXT) of Japan for the scholarship (MEXT ID: 183385). We thank Sarah Dodds, Ph.D., from Edanz Group ( https://en-author-services.edanzgroup.com/ ) for editing a draft of this manuscript.
Publisher Copyright:
Copyright © 2020 American Chemical Society.
PY - 2020/8/3
Y1 - 2020/8/3
N2 - Mutual separation of platinum group metals (PGMs) is a particularly challenging issue in metal recovery technology. In this study, we report the successful separation of Pt(IV), Pd(II), and Rh(III) by sequential transport through polymer inclusion membranes (PIMs) containing the ionic liquid trioctyl(dodecyl) phosphonium chloride (P88812Cl) as a metal carrier. This study describes the screening of suitable receiving solutions, optimization of the operating conditions, establishing a possible transport mechanism, and evaluation of the membrane stability. In the first transport sequence, Pt(IV) was selectively transported into the receiving solution with a recovery of >95%, while Pd(II) and Rh(III) remained in the feed solution. In the second transport sequence, high-purity Pd(II) was transported into the receiving solution with a recovery of >95%, while Rh(III) remained completely in the feed solution. Furthermore, the PIM exhibited a stable performance with multiple uses over a 4-week period during which four Pt(IV) and Pd(II) sequential transport cycles were continuously carried out.
AB - Mutual separation of platinum group metals (PGMs) is a particularly challenging issue in metal recovery technology. In this study, we report the successful separation of Pt(IV), Pd(II), and Rh(III) by sequential transport through polymer inclusion membranes (PIMs) containing the ionic liquid trioctyl(dodecyl) phosphonium chloride (P88812Cl) as a metal carrier. This study describes the screening of suitable receiving solutions, optimization of the operating conditions, establishing a possible transport mechanism, and evaluation of the membrane stability. In the first transport sequence, Pt(IV) was selectively transported into the receiving solution with a recovery of >95%, while Pd(II) and Rh(III) remained in the feed solution. In the second transport sequence, high-purity Pd(II) was transported into the receiving solution with a recovery of >95%, while Rh(III) remained completely in the feed solution. Furthermore, the PIM exhibited a stable performance with multiple uses over a 4-week period during which four Pt(IV) and Pd(II) sequential transport cycles were continuously carried out.
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U2 - 10.1021/acssuschemeng.0c03205
DO - 10.1021/acssuschemeng.0c03205
M3 - Article
AN - SCOPUS:85090291500
SN - 2168-0485
VL - 8
SP - 11283
EP - 11291
JO - ACS Sustainable Chemistry and Engineering
JF - ACS Sustainable Chemistry and Engineering
IS - 30
ER -
