Kinetic study on removal of toxic metal Cr(VI) through a bulk liquid membrane containing p-tert-butylcalix[4]arene derivative

Alpaydın, Sabri; Saf, Ahmet Özgür; Bozkurt, Selahattin; Sirit, Abdulkadir

doi:10.1016/j.desal.2011.02.048

Cited by 39 publications

(50 citation statements)

References 42 publications

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“…As it is seen, the transport efficiency of Cu(II) ion increases with an increase in LH 2 concentration in the organic phase because the interface between the source and the membrane phase is not saturated by the carrier in lower concentrations, while in higher concentrations, this interface is saturated [32] and hence there are more effective conditions to complex metal ions by carrier. A maximum transport was occurred at a concentration of about 4 × 10 −4 M LH 2 .…”

Section: Effect Of Carrier Concentration In the Organic Phasementioning

confidence: 82%

Selective transport of Cu(II) ions from a mixture of Mn(II), Co(II), Ni(II), Cu(II), Zn(II), and Pb(II) cations through a bulk liquid membrane using benzyl bis(thiosemicarbazone) as carrier

Nezhadali

Mohammadi

Akbarpour

et al. 2015

Desalination and Water Treatment

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Section: Effect Of Carrier Concentration In the Organic Phasementioning

confidence: 82%

Selective transport of Cu(II) ions from a mixture of Mn(II), Co(II), Ni(II), Cu(II), Zn(II), and Pb(II) cations through a bulk liquid membrane using benzyl bis(thiosemicarbazone) as carrier

Nezhadali

Mohammadi

Akbarpour

et al. 2015

Desalination and Water Treatment

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“…Other advantages of this technique included low cost and energy consumption. The carrier plays a crucial role in order to selective extraction of the desired elements at the feed aqueousorganic interface and release them at the organicacceptor phase interface [12].…”

Section: Desalination and Water Treatmentmentioning

confidence: 99%

Selective transport of copper (II) from zinc (II), lead (II), cadmium (II), nickel (II), and cobalt (II) ions mixture through bulk liquid membrane using 5-nitro-8-quinolinol as a carrier

Nezhadali

Es’haghi

Hosseini

2014

Desalination and Water Treatment

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A B S T R A C TThe transport of Cu 2+ ion through a chloroform (CHCl 3 ) bulk liquid membrane containing 5-nitro-8-quinolinol (NQ) as a selective carrier was studied. The NQ is an efficient carrier for the transport of Cu 2+ from aqueous solutions containing equimolar concentration of other cations such as Cd 2+ , Pb 2+ , Zn 2+ , Ni 2+ , and Co 2+ ions. The parameters that have influence on the transport efficiency such as transport time, type, and concentration of stripping agent in acceptor phase, concentration of NQ in membrane phase, pH of donor phase, and stirring rate were examined. Under optimum conditions, the extent of Cu 2+ transports across the liquid membrane was about 33.05% after 24 h and cation fluxes (J M ) were studied for the transport of Cu 2+ in different membranes, and the maximum amount of J M was 9.58 × 10 −9 (mol/m 2 s) in CHCl 3 . The applicability of the method was examined for the separation of copper (II) ions from real liquid samples. Transport efficiency of Cu 2+ for three replicate measurements in river liquid samples RW 1 , RW 2 , and RW 3 obtained 29.9 ± 2.2%, 32.0 ± 1.5%, and 30.3 ± 2.1%, respectively, after 24 h.

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“…The special modified functional group (carboxyl) could enhance water solubility of the calixarene, which showed highly selective recognition function and has been applied in biological molecules analysis [25]. The recognition of Cr based on hostguest chemistry of the derivatives of calix [4]arene has been reported [26,27]. In this paper, a new type of calixarene carboxylic acid derivative was synthesized ( Figure 1).…”

Section: Introductionmentioning

confidence: 98%

Surfactant Sensitized Calix[4]arenes Fluorescence Quenching Method for Speciation of Cr(VI)/Cr(III) in Water Samples

2013

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The surfactant sensitized spectrofluorimetry for speciation of chromium (Cr(VI)/Cr(III)) was developed. The analytical procedure was that the fluorescence intensity of l4,10,16,22-tetramethoxyl resorcinarene carboxylic acid derivatives (TRCA) could be selectively quenched by Cr(VI) and the fluorescence quenching value (ΔF=FTRCA-FCr(VI)-TRCA) was increased in cetyltrimethylammonium bromide (CTAB). The main influence factors on the fluorescence quenching (ΔF) were investigated in detail. Under the optimal conditions, the linear range of calibration curve for the determination of Cr(VI) was 0.10~5.00 μg/mL, and the detection limit was 0.024 μg/mL with RSD=2.10% (c=1.0 μg/mL, n=3). The concentration of Cr(III) was calculated by subtracting Cr(VI) from the total chromium determined after oxidizing Cr(III) to Cr(VI). The preliminary sensitized mechanism was discussed with the inclusion constant (K) of TRCA-Cr(VI), the fluorescence quantum yield of TRCA, and IR spectra characterization. The method has been applied to the speciation analysis of Cr(VI)/Cr(III) in water samples.

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Kinetic study on removal of toxic metal Cr(VI) through a bulk liquid membrane containing p-tert-butylcalix[4]arene derivative

Cited by 39 publications

References 42 publications

Selective transport of Cu(II) ions from a mixture of Mn(II), Co(II), Ni(II), Cu(II), Zn(II), and Pb(II) cations through a bulk liquid membrane using benzyl bis(thiosemicarbazone) as carrier

Selective transport of Cu(II) ions from a mixture of Mn(II), Co(II), Ni(II), Cu(II), Zn(II), and Pb(II) cations through a bulk liquid membrane using benzyl bis(thiosemicarbazone) as carrier

Selective transport of copper (II) from zinc (II), lead (II), cadmium (II), nickel (II), and cobalt (II) ions mixture through bulk liquid membrane using 5-nitro-8-quinolinol as a carrier

Surfactant Sensitized Calix[4]arenes Fluorescence Quenching Method for Speciation of Cr(VI)/Cr(III) in Water Samples

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