Transport of Indole 3-acetic Acid through Bulk Liquid Membrane Influence of Carrier in the Diffusion Process

Diaconu, Ioana; Serban, Ecaterina Anca; Badea, Georgiana Ileana; Ruse, Elena

doi:10.37358/rc.19.8.7414

Cited by 4 publications

(6 citation statements)

References 17 publications

(25 reference statements)

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“…1 . The tube in tube setup consists of an outer glass tube, containing the feed solution (at the upper part) and membrane phase (at the bottom part), and an inner glass tube, containing the stripping solution 32 – 34 . The internal diameter of outer tube was D in = 0.042 m, whereas the external and internal diameters of inner tube were d = 0.021 m and d in = 0.019 m, respectively.…”

Section: Methodsmentioning

confidence: 99%

“…Some characteristic parameters of mass transfer process in the three-phase system, i.e., association constants in membrane phase ( K as,M ) and feed solution ( K as,F ), repartition constants of species IAA and L ( TOA ) between membrane and feed solution ( R IAA,M/F and R L,M/F ), repartition constant of species L between membrane and stripping solution ( R L,M/S ), and extraction constant ( K ext ), are defined by Eqs. ( 8 )–( 11 ), where c s,p (kmol/m 3 ) represents the molar concentration of s ( IAA , L , IAA-L ) species in the p ( F , M , S ) phase 32 . …”

Section: Methodsmentioning

confidence: 99%

“…Statistical models based on a 2 3 factorial plan and a deterministic model based on mass transfer of IAA were used to predict the process performances under different operation conditions. Chloroform is widely used as BLM 21 , 23 , 24 , 32 . It has a lower viscosity ( η = 0.58 cP) than other solvents, e.g .…”

Section: Introductionmentioning

confidence: 99%

“…TOA carrier can heavily improve the separation efficiency. TBP , TOPO , and TOA carriers and chloroform BLM were used in a previous study to separate IAA from dilute aqueous solutions 32 . Separation efficiency was higher for TOA carrier, due to stronger donor–acceptor interactions between IAA and TOA , as opposed to weaker hydrogen bonds between IAA and the other two carriers.…”

Section: Introductionmentioning

confidence: 99%

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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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Section: Methodsmentioning

confidence: 99%

Section: Methodsmentioning

confidence: 99%

Section: Introductionmentioning

confidence: 99%

Section: Introductionmentioning

confidence: 99%

See 2 more Smart Citations

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

Diaconu

Pârvulescu

Topală

et al. 2021

Sci Rep

Self Cite

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show abstract

“…Some characteristic parameters of mass transfer process in the three-phase system, i.e., association constants in membrane phase (K as,M ) and feed solution (K as,F ), repartition constants of species IAA and L (TOA) between membrane and feed solution (R IAA,M/F and R L,M/F ), repartition constant of species L between membrane and stripping solution (R L,M/S ), and extraction constant (K ext ), are defined by Eqs. ( 8)-( 13), where c s,p (kmol/m 3 ) represents the molar concentration of s (IAA, L, IAA-L) species in the p (F, M, S) phase 36 . Taking into account Eqs.…”

Section: Mass Transfer-based Modelmentioning

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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Use of cyclopentyl methyl ether (CPME) as green membrane for acetic acid removal by facilitated bulk liquid membrane: A transport and kinetic study

2022

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In current investigation, cyclopentyl methyl ether (CMPE) was tested as a novel membrane solvent for acetic acid removal from an aqueous medium in the facilitated bulk liquid membrane (BLM). Tributyl phosphate (TBP) has been utilized as a carrier in CMPE to facilitate acetic acid transport. The influences of various operating factors like carrier concentration in the membrane solvent, receiving phase type, and receiving phase concentration on removal, were analyzed. The uptake was evaluated by means of feed (extraction) and receiving yields. Following this, a mass transfer modelling was established and the mass transfer coefficients were determined. The maximum yields were recorded as 95.4% for extraction and 78.01% for receiving yields at 2 mol · L−1 carrier concentration in membrane solvent, and 4 mol · L−1 NaOH of receiving phase concentration.

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Transport of Indole 3-acetic Acid through Bulk Liquid Membrane Influence of Carrier in the Diffusion Process

Cited by 4 publications

References 17 publications

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

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

Use of cyclopentyl methyl ether (CPME) as green membrane for acetic acid removal by facilitated bulk liquid membrane: A transport and kinetic study

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