Selective membrane transport of Pb2+ ion by a cooperative carrier composed of 18-crown-6, tetrabutylammonium iodide and palmitic acid

Parham, Hooshang; Shamsipur, Mojtaba

doi:10.1016/0376-7388(94)85025-9

Cited by 27 publications

(8 citation statements)

References 15 publications

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“…This is mainly due to the considerable solubilities of the free and complexed A18C6 in the aqueous phases (7,9,10,12). However, a given mixture of PA and A18C6 (at a ratio of about 1/10) was found to mediate the Pb2+ transport with surprisingly high efficiency (Tables 1 and 2).…”

Section: Resultsmentioning

confidence: 79%

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Highly Efficient Cooperative Membrane Transport of Lead(II) Ions by Aza-18-crown-6 and Palmitic Acid

Akhond

Shamsipur

1997

Separation Science and Technology

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A chloroform membrane system containing a given mixture of aza-18-crown-6 and palmitic acid was applied for the uphill transport of Pb2+ ions. In the presence of PzOj-ion as a suitable metal ion acceptor in the receiving phase, the amount of lead ion transported across the liquid membrane after 100 minutes is 89.1 2 1.3%. The selectivity and efficiency of lead transport from aqueous solutions containing other cations such as ZnZ+, C u z + , Ni2+, C o 2 + , Fez+, Pd2+ , and Ag+ ions were investigated. In the presence of &Of-ion as a proper masking agent in the source phase, the interfering effects of Cuz+ ion were diminished drastically.

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Section: Resultsmentioning

confidence: 79%

“…In marked contrast, little attention has been directed toward the transport of transition and heavy metal ions by macrocyclic ligands (5)(6)(7)(8). Thus, in recent years we have worked on the development of new membrane systems for the selective and efficient transport of such cations by crown ethers (9)(10)(11)(12)(13).…”

mentioning

confidence: 95%

Highly Efficient Cooperative Membrane Transport of Lead(II) Ions by Aza-18-crown-6 and Palmitic Acid

Akhond

Shamsipur

1997

Separation Science and Technology

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“…Membran ini mampu untuk memberikan seluruh fasilitias antarmukanya untuk tempat terjadinya proses`transpor pada sistem pemisahan [1] . Bermacam senyawa pembawa (carrier) yang ditambahkan ke dalam membran cair sebagai mediator untuk memacu proses transpor ion logam tersebut dalam pemisahan telah banyak diuji keakuratannya.Disini transport terjadi berdasarkan perbedaan difusi, karena adanya perbedaan kelarutan komplek ( ion-carrier ) pada antarmuka, kompleknya reversible antara senyawa pembawa dengan ion logam yang akan ditranspor [2] .…”

Section: Pendahuluanunclassified

Penentuan Kondisi Optimasi Transpor Ion Cu (Ii) Melalui Teknik Membran Cair Fasa Ruah Secara Simultan Dengan Oksin Sebagai Pembawa

Refinel¹,

Alif²,

Octarini³

2015

J.Ris.Kim.

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Determination of optimum condition and kinetic analysis Cu (II) iontransport by simultaneous bulk liquid membrane has been studied. Optimum condition for resource phase with Cu (II) ion concentration as 3,147 x 10 -4 M obtained at pH 3 receiving phase with H 2 SO 4 concentration 0,15 M and transport time as long as 3 hours through chloroform membrane using oxine 17,5 x 10 -4 M as carrier. Transportation rate of Cu (II) ion decided by comparasion changer-over rest concentration in resource phase Rs and transpoted to receiving phase Rp and then monitored by Atomic Adsorbtion Spectrophotometre (AAS). Kinetic of transport Cu (II) ion process by simultaneous bulk liquid membrane technique fulfil irreversible consecutive first order reaction with transport Cu (II) ion gave (k 1 ) value as 0,0442 minute -1 and ( k 1 ) 0,0372 minute -1 . Simultaneous bulk liquid membrane method can be the alternative method in the determination of optimum condition and kinetic analysis of metal ions transport.

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“…These are very exciting and useful methods for assessing the partitioning of metal ions into and out of the organic phase and are of special importance in separation science, medicine, water purification, and metallurgy (19,20). In recent years, we have introduced a variety of bulk liquid membrane systems for the selective and efficient transport of different transition and heavy metal ions including Cu 2ϩ (21,22), Zn 2ϩ (23,24), Hg 2ϩ (25), Pb 2ϩ (26,27), Cd 2ϩ (28), and Ag ϩ (29). In this article we report a new highly efficient and selective liquid membrane system containing potassium-dicyclohexyl-18-crown-6 for the uphill transport of palladium ion, as PdCl 4 2Ϫ counterion.…”

Section: Introductionmentioning

confidence: 99%

Selective Liquid Membrane Transport of Pd(II) as PdCl2−4 Ion Using Potassium–Dicyclohexyl-18-crown-6 as Carrier

Jabbari

Mohammadi

Shamsipur

1999

Microchemical Journal

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Selective membrane transport of Pb2+ ion by a cooperative carrier composed of 18-crown-6, tetrabutylammonium iodide and palmitic acid

Cited by 27 publications

References 15 publications

Highly Efficient Cooperative Membrane Transport of Lead(II) Ions by Aza-18-crown-6 and Palmitic Acid

Highly Efficient Cooperative Membrane Transport of Lead(II) Ions by Aza-18-crown-6 and Palmitic Acid

Penentuan Kondisi Optimasi Transpor Ion Cu (Ii) Melalui Teknik Membran Cair Fasa Ruah Secara Simultan Dengan Oksin Sebagai Pembawa

Selective Liquid Membrane Transport of Pd(II) as PdCl2−4 Ion Using Potassium–Dicyclohexyl-18-crown-6 as Carrier

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