TY  - JOUR
T1  - Selective Transport of Bismuth from Heavy Metal Solution by Ionic Liquid-Based Polymer Inclusion Membrane IL-PIM
AU  - Malki, Mohamed
AU  - Meziani, Rabea
AU  - Mitiche, Lynda
AU  - Sahmoune, Amar
AU  - Fontas, Claudia
PY  - 2025
DA  - August
Y2  - 2025
DO  - 10.55549/epstem.1755297
JF  - The Eurasia Proceedings of Science Technology Engineering and Mathematics
JO  - EPSTEM
PB  - ISRES Publishing
WT  - DergiPark
SN  - 2602-3199
SP  - 333
EP  - 338
VL  - 34
LA  - en
AB  - Bismuth is an important critical metal which is under risk of supply. It is mainly found andextracted at trace amounts in copper, lead, tin and gold mining by-product. In this work, we present the resultsof the selective transport of trace bismuth Bi(III) from a solution of heavy metals by an Ionic liquids-basedPolymer Inclusion Membranes (PIM), using the task-specific ionic liquid: trihexyl(tetradecyl) phosphoniumsalicylate (THTDPS), as extractant and ion carrier. The TS-IL was first synthesized by exchanging the inorganicanion of trihexyl(tetradecyl) phosphonium chloride Cyphos IL 101 with the organic anion of sodium salycilate.Important parameters influencing extraction and transport have been examined and optimized. The studied PIMis composed of 50% CTA, and 50% THTDPS without any additional chemical (modifier or plasticizer).The performance and stability of the PIM was carried out in depth. The selective transport of Bi(III) froma solution containing the heavy metals: Pb(II), Cu(II), Cd(III), Ni(II) was carried out. The feed phase iscomposed of trace concentration of the metal ions (10 mg.L-1) in 1M HCl. The optimal receiving phaseconditions were studied and the best composition is EDTA 0.05M at pH 5. The PIM exhibits a good selectivitytowards Bi(III), and the transport rates are reported to be 74.8 ± 9% for Bi(III), against 62.23%, 14.8 ± 9%, 3.15± 3.15%, and 2.5 ± 2.5% for Cd(II), Pb(II), Cu(II), and Ni(II), respectively. The study of the stability shows thatthe PIM can be used up to 5 cycles of extraction-back extraction without significant decrease in the efficiency.
KW  - Ionic liquids
KW  - Polymer inclusion membranes
KW  - Metal separation
CR  - Malki, M., Meziani R., Mitiche, L., Sahmoune, A., & Fontas C. (2025). Selective transport of bismuth from heavy metal solution by ionic liquid-based polymer inclusion membrane IL-PIM. The Eurasia Proceedings of Science, Technology, Engineering and Mathematics (EPSTEM), 34, 333-338.
UR  - https://doi.org/10.55549/epstem.1755297
L1  - https://dergipark.org.tr/en/download/article-file/5109630
ER  -