•  
  •  
 

Turkish Journal of Chemistry

Abstract

This study investigates the extraction behavior of Y³⁺ ions using a Multi-Dropped Liquid Membrane (MDLM) system that employs di(2-ethylhexyl) phosphoric acid (D₂EHPA) as the carrier ligand. The focus is on the system’s ability to transport ions between aqueous phases selectively. The extracted complex was analyzed spectrophotometrically via ultraviolet–visible (UV–Vis) measurements after complexation with 0.05% Arsenazo III. The aim of this study was to determine the influence of the optimum D₂EHPA carrier concentration, together with the pH and temperature conditions of the donor and acceptor phases, on the system’s extraction performance. Accordingly, a series of extraction experiments was performed at different D₂EHPA concentrations, pH values, and temperatures to assess their combined effects on transport kinetics. The MDLM system achieved a maximum transport efficiency of 99.90% for Y³⁺ ions at a D₂EHPA concentration of 0.0045 mol/L, with a corresponding extraction time of 160 min. The shortest transport time of 120 min was observed at a carrier concentration of 0.0075 mol/L, confirming the strong influence of carrier concentration on extraction kinetics. The calculated low activation energy of 31.446 kJ/mol suggests that the transport of Y³⁺ ions through the MDLM system into the organic phase containing D₂EHPA is diffusion-controlled.

Author ORCID Identifier

VOLKAN DEMİREL: 0000-0002-4998-1087

RAMAZAN DONAT: 0000-0002-5701-5030

HACER ŞENSÖZ: 0000-0002-2173-8974

DOI

10.55730/1300-0527.3771

Keywords

Yttrium, D₂EHPA, MDLM system transport, membrane

First Page

793

Last Page

808

Publisher

The Scientific and Technological Research Council of Türkiye (TÜBİTAK)

Creative Commons License

Creative Commons Attribution 4.0 International License
This work is licensed under a Creative Commons Attribution 4.0 International License.

Download

Included in

Chemistry Commons

Share

COinS