scholarly journals TRANSPORT OF Cr3+, Cd2+, Pb2+, AND Ag+ IONS THROUGH BULK LIQUID MEMBRANE CONTAINING p-tert-BUTYLCALIX[4]ARENE –TETRACARBOXYLIC ACID AS ION CARRIER

2010 ◽  
Vol 7 (2) ◽  
pp. 172-179 ◽  
Author(s):  
Maming Maming ◽  
Jumina Jumina ◽  
Dwi Siswanta ◽  
Hardjono Sastrohamidjojo

The research on transport of Cr3+, Cd2+, Pb2+, and Ag+ through bulk liquid membrane using p-tert-butylcalix[4]arene-tetracarboxylic acid as ions carrier has been conducted. The aims of this research were to determine optimum condition, efficiency, and selectivity of transport of the ions carriers to those ions. Both optimum condition and efficiency of transport were obtained by determination of transported ions concentration with pH variation of source phase, ionic carrier concentration, nature of stripping agent in target phase, and transport time. The transport selectivity of ions carrier was obtained from experiments of equimolar mixture ions transport competition. Amount of Cr3+, Pb2+, Cd2+, and Ag+  transported across liquid membrane were about 6, 80, 84  and 87 % respectively after being transported for 48 h. The ion carrier  was selective for both Pb2+ ion  (separation factors are 9.6 for Ag+ ion, 1.9 for  Cd2+ ion and infinite for Cr3+ ion) and Ag+ ion (separation factors are 1.8 for Cd2+ and infinite for both Pb2+ and Cr3+ ions). This system represents a proton-coupled transport with flow of protons in the opposite direction.   Keywords: transport,  p-tert-butylcalix[4]arene-tetracarboxylic acid, efficiency, selectivity,  bulk liquid membrane, heavy metals,

2010 ◽  
Vol 8 (3) ◽  
pp. 300-306 ◽  
Author(s):  
Maming Maming ◽  
Jumina Jumina ◽  
Dwi Siswanta ◽  
Hardjono Sastrohamidjojo ◽  
Keisuke Ohto

The study on the transport behavior of Cr(III), Cd(II), Pb(II), and Ag(I) through bulk liquid membrane using p-tert-butylcalix[4]arene-tetradiethylacetamide as ions carrier has been conducted. The aims of this work are to determine the optimum condition, efficiency, and transport selectivity of the carriers for those ions. Both optimum condition and transport efficiency were obtained by determination of the concentration of transported ions with variation of the source phase pH, ion carrier concentration, the nature of decomplexant agent in the receiving phase, and transport time. The transport selectivity of the ion carrier was obtained from the ions competition transport experiments. The amount of Cr(III), Pb(II), Cd(II), and Ag(I) transported across liquid membrane were 11.6, 25.5, 39.5, and 42.1% respectively. The ion carrier is selective for Cd(II), Pb(II), Ag(I), and strongly depends on the nature of decomplexant agent as well as transport mechanism. The remarkable selectivity was shown by the ion carrier to Ag(I) when the transport process was carry out under high concentration of acid in the source phase.   Keywords: transport, p-tert-butylcalix[4]arene-tetradiethylacetamide, efficiency, selectivity, bulk liquid membrane, heavy metals


2010 ◽  
Vol 8 (1) ◽  
pp. 72-77 ◽  
Author(s):  
Maming Maming ◽  
Jumina Jumina ◽  
Dwi Siswanta ◽  
Firdaus Firdaus ◽  
Hardjono Sastrohamidjojo

The study on transport of Cr(III), Cd(II), Pb(II), and Ag(I) through bulk liquid membrane using p-tert-butylcalix[4]arene-tetraethylester as ions carrier has been conducted. The aims of this work are to determine the optimum condition, efficiency, and selectivity of transport of the carriers for those ions. Both optimum condition and efficiency of transport were obtained by determination of the concentration of transported ions with variation of source phase pH, ion carrier concentration, the nature of stripping agent in the target phase, and transport time. The ion transport selectivity of ion carrier was obtained from the ions transport competition experiments using equimolar mixtures. The amount of Cr(III), Pb(II), Cd(II), and Ag(I  that was transported across liquid membrane was about 0, 10, 10 and 50 % respectively after 24 hours, except for Pb(II) (32 hours). The ion carrier is selective for Ag(I) where separation factor to Cd(II) was 16.0, that to Pb(II) was 42.8, and that to Cr(III) was infinite.   Keywords: transport,  calix[4]arene, efficiency, selectivity, bulk liquid membrane, heavy metals


2018 ◽  
Vol 316 (1) ◽  
pp. 9-16 ◽  
Author(s):  
M. Soltani Behrooz ◽  
J. Fasihi ◽  
M. Samadfam ◽  
H. Sepehrian ◽  
P. Ashtari ◽  
...  

2012 ◽  
Vol 5 (2) ◽  
pp. 125
Author(s):  
Imelda ◽  
Zaharasmi Kahar ◽  
Maria Simarmata ◽  
Djufri Mustafa

The transport of Cu(II) with Ammonium Pyrrolidine Dithiocarbamate(APDC) as carrier through bulk liquid membrane had been researched. The measurement was performed to source phase and feed phase by using Atomic Absorption Spectrophotometer toward λmaks 324.7 nm. The result of the research showed the optimum condition to separate 20 ppm of Cu(II) was at pH 4 of source phase, concentration of APDC was 1 : 30, stirring time was 2 hours, and the stirring velocity was 300 rpm with the percentage of Cu(II) transport to feed phase was 97,06% and percentage of remains Cu(II) was 0%.


2010 ◽  
Vol 10 (1) ◽  
pp. 69-74 ◽  
Author(s):  
La Harimu ◽  
Sabirin Matsjeh ◽  
Dwi Siswanta ◽  
Sri Juari Santosa

Fe (III), Cr(III), Cu(II), Ni(II), Co(II), and Pb(II)  metal ions had been separated using poly(eugenyl oxyacetic acid) as an ion carrier by bulk liquid membrane transport method. The effect of pH, polyeugenyl oxyacetic acid ion carrier concentration, nitric acid concentration in the stripping solution, transport time, and metal concentration were optimized. The result showed that the optimum condition for transport of metal ions was at pH 4 for ion Fe(III) and at pH 5 for Cr(III), Cu(II), Ni(II), Co(II), and Pb(II) ions. The carrier volumes were optimum with concentration of 1 x 10-3 M at 7.5 mL for Cr(III), Cu (II),  Ni(II), Co(II) ions and at 8.5 mL for Fe(III) and Pb(II) ions. The concentration of HNO3 in stripping phase was optimum at 2 M for Fe(III) and Cu(II) ions, 1 M for Cr(III), Ni(II) and Co(II) ions, and 0.5 M for Pb(II) ion. The optimum transport times were 36 h for Fe(III) and Co(II) ions, and 48 h for Cr(III), Cu (II), Ni(II), and Pb(II) ions. The concentration of metal ions accurately transported were 2.5 x 10-4 M for Fe(III) and Cr(III) ions, and 1 M for Cu (II), Ni(II), Co(II), and Pb(II) ions. Compared to other metal ions the transport of Fe(III) was the highest with selectivity order of Fe(III) > Cr(III) > Pb(II) > Cu(II) > Ni(II) > Co(II). At optimum condition, Fe(III) ion was transported through the membrane at 46.46%.   Keywords: poly(eugenyl oxyacetic acid), transport, liquid membrane, Fe (III), Cr(III), Cu(II), Ni(II), Co(II), and Pb(II) ions


2015 ◽  
Vol 4 (2) ◽  
pp. 48
Author(s):  
Refinel ◽  
Admin Alif ◽  
Rizki Octarini

 ABSTRACT 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 H2SO4 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 (k1) value as 0,0442 minute-1 and ( k1 ) 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. Key words: Cu (II) ion, kinetic, optimum, transport, liquid membrane, simultaneous    


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