Selective Transport of Silver(I) Cation Across a Bulk Liquid Membrane Containing Bis-β-enamino Ester as Ion Carrier

Tarahomi, Somayeh; Rounaghi, Gholam Hossein; Daneshvar, Leili; Chamsaz, Mahmoud

doi:10.5935/0103-5053.20160146

Cited by 5 publications

(5 citation statements)

References 27 publications

(28 reference statements)

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“…The literature review shows several applications of liquid membranes to real waste solutions treatment. According to the literature 23,28,29 concentration of Ag(I) ions in wastewater was between 4.0-8.0 Â 10 À4 M. Tarahomi et al 28 showed composition of silver plating and photographic waste solution in which silver concentration was 5 Â 10 À4 M at pH 3. Amiri et al 23 also showed that the derivatives of the calix [4]pyrroles dissolved in an oil and immobilized to the supported liquid membrane (SLM) based on a polypropylene matrix are effective and selective Ag(I) ion transporters.…”

Section: Modication Of Source Phase Compositionmentioning

confidence: 99%

Selective removal of silver(i) using polymer inclusion membranes containing calixpyrroles

2019

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Section: Modication Of Source Phase Compositionmentioning

confidence: 99%

Selective removal of silver(i) using polymer inclusion membranes containing calixpyrroles

2019

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“…Solute transfer through systems containing liquid membranes can be significantly enhanced by adding different carriers (ligands or extraction reagents) in the liquid membrane. Mass transfer assisted by a carrier takes place as follows: (1) the carrier reacts with the target compound (solute) at the interface between feed phase and membrane phase forming a chemical complex; (2) solute-carrier complex diffuses through liquid membrane and reaches the interface between membrane and stripping phase, where the decomplexation occurs; (3) the solute is released into the stripping phase, whereas the carrier diffuses back through membrane 10 – 12 , 23 , 25 , 26 . A suitable carrier facilitates the solute extraction (from feed phase) and transport (through membrane phase) as well as determines its purification 24 .…”

Section: Introductionmentioning

confidence: 99%

Effects of process factors on performances of liquid membrane-based transfer of indole-3-acetic acid

Diaconu

Pârvulescu

Topală

et al. 2021

Sci Rep

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The paper has aimed at studying the transfer of indole 3-acetic acid (IAA) from a feed aqueous solution to a stripping aqueous solution of NaOH using a chloroform bulk liquid membrane and trioctylamine (TOA) as a ligand (L). Initial molar concentrations of IAA in the feed phase, cIAA,F0 (10–4–10–3 kmol/m3), of TOA in the membrane phase, cL,M0 (10–2 and 10–1 kmol/m3), and of NaOH in the stripping phase, cNaOH,S0 (10–2 and 1 kmol/m3), were selected as process factors. Their effects on the final values of IAA concentration in the feed phase (cIAA,Ff) and stripping solution (cIAA,Sf), extraction efficiency (EF), distribution coefficient (KD), and recovery efficiency (ER) were quantified using multiple regression equations. Regression coefficients were determined from experimental data, i.e., cIAA,Ff,ex = 0.02–1 × 10–4 kmol/m3, cIAA,Sf,ex = 0.22–2.58 × 10–3 kmol/m3, EF,ex = 90.0–97.9%, KD,ex = 9.0–46.6, and ER,ex = 66.5–94.2%. It was found that cIAA,F0 had the most significant positive effect on cIAA,Ff and cIAA,Sf, whereas cNaOH,S0 had a major positive effect on EF, KD, and ER. A deterministic model based on mass transfer of IAA was developed and its parameters, i.e., mass transfer coefficient of IAA-L complex in the liquid membrane (0.82–11.5 × 10–7 m/s) and extraction constant (1033.9–1779.7 m3/kmol), were regressed from experimental data. The effect of cL,M0 on both parameters was significant.

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“…Solute transfer through systems containing liquid membranes can be significantly enhanced by adding different carriers (ligands or extraction reagents) in the liquid membrane. Mass transfer assisted by a carrier takes place as follows: (i) the carrier reacts with the target compound (solute) at the interface between feed phase and membrane phase forming a chemical complex; (ii) solute-carrier complex diffuses through liquid membrane and reaches the interface between membrane and stripping phase, where the decomplexation occurs; (iii) the solute is released into the stripping phase, whereas the carrier diffuses back through membrane [10][11][12]23,25,26 . A suitable carrier facilitates the solute extraction (from feed phase) and transport (through membrane phase) as well as determines its purification 24 .…”

Section: Introductionmentioning

confidence: 99%

Effects of Process Factors on Performances of Liquid Membrane-Based Transfer of Indole-3-Acetic Acid

Diaconu¹,

Pârvulescu²,

Topală³

et al. 2021

Preprint

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The paper has aimed at studying the transfer of indole 3-acetic acid (IAA) from a feed aqueous solution to a stripping aqueous solution of NaOH using a chloroform bulk liquid membrane and trioctylamine (TOA) as a ligand (L). Initial molar concentrations of IAA in the feed phase, cIAA,F0 (10-4-10-3 kmol/m3), of TOA in the membrane phase, cL,M0 (10-2 and 10-1 kmol/m3), and of NaOH in the stripping phase, cNaOH,S0 (10-2 and 1 kmol/m3), were selected as process factors. Their effects on the final values of IAA concentration in the feed phase (cIAA,Ff) and stripping solution (cIAA,Sf), extraction efficiency (EF), distribution coefficient (KD), and recovery efficiency (ER) were quantified using multiple regression equations. Regression coefficients were determined from experimental data, i.e., cIAA,Ff,ex=0.02-1×10-4 kmol/m3, cIAA,Sf,ex=0.22-2.58×10-3 kmol/m3, EF,ex=90.0-97.9%, KD,ex=9.0-46.6, and ER,ex=66.5-94.2%. It was found that cIAA,F0 had the most significant positive effect on cIAA,Ff and cIAA,Sf, whereas cNaOH,S0 had a major positive effect on EF, KD, and ER. A deterministic model based on mass transfer of IAA was developed and its parameters, i.e., mass transfer coefficient of IAA-L complex in the liquid membrane (0.08-1.15×10-6 m/s) and extraction constant (1033.9-1779.7 m3/kmol), were regressed from experimental data. The effect of cL,M0 on both parameters was significant.

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Selective Transport of Silver(I) Cation Across a Bulk Liquid Membrane Containing Bis-β-enamino Ester as Ion Carrier

Cited by 5 publications

References 27 publications

Selective removal of silver(i) using polymer inclusion membranes containing calixpyrroles

Selective removal of silver(i) using polymer inclusion membranes containing calixpyrroles

Effects of process factors on performances of liquid membrane-based transfer of indole-3-acetic acid

Effects of Process Factors on Performances of Liquid Membrane-Based Transfer of Indole-3-Acetic Acid

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