Selective separation and recovery of Pt(IV) from Pd(II) through an imidazolium-ionic-liquid-based supported liquid membrane

Wataru Yoshida, Fukiko Kubota, Riho Kono, Masahiro Goto

    Research output: Contribution to journalArticlepeer-review

    10 Citations (Scopus)

    Abstract

    A supported liquid membrane (SLM) system for the selective separation of platinum(IV) from palladium(II) has been developed. The SLM was prepared using imidazolium-based IL 1-octy-3-methylimidazolium bis(trifluoromethanesulfonyl)- imide. The initial flux and separation factor of Pt(IV) from Pd(II) were found to significantly depend on the composition of the receiving solution. Based on the performance, a 0.1 mol dm-3 NaClO4 solution was selected as a suitable receiving solution. Membrane transport experiments showed that 93% of Pt(IV) can be selectively transported into the receiving solution, whereas most Pd(II) remains in the feed solution.

    Original languageEnglish
    Pages (from-to)343-346
    Number of pages4
    Journalanalytical sciences
    Volume35
    Issue number3
    DOIs
    Publication statusPublished - 2019

    All Science Journal Classification (ASJC) codes

    • Analytical Chemistry

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