Selective separation of cesium from simulated high level liquid waste solution using 1,3-dioctyloxy calix[4]arene-benzo-crown-6

Kumar, Vikas; Sharma, J. N.; Achuthan, P. V.; Hubli, R.C.

doi:10.1007/s10967-014-2973-9

Cited by 18 publications

(15 citation statements)

References 21 publications

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“…The second stage from 420 to 550˝C was due to the breakage of the SC4A rings. The weight loss curves of irradiated samples were similar to that of sample A with the exception of sample E. It was irradiated at 1.1ˆ10 6 Gy, which probably resulted in structural changes of trace impurities, and thus its residuals were more abundant than those of other samples.…”

Section: Irradiation Stability and Thermal Stability Of Sc4amentioning

confidence: 65%

“…In this stage, the weight loss of the sample was approximately 60%, which was close to the theoretical value of 57% of the molecular The IR spectra of SC4A samples irradiated under different doses are presented in Figure S6 (in Supplementary Materials). It can be seen that the IR spectra of irradiated samples B and C remained the same as that of sample A, while a weaker absorbed peak appeared in that of sample D at 1728.2 cm´1 owing to the appearance of a C=O group, for which the flex vibration zone ranges from 1870 to 1650 cm´1 [44] , and its intensity increased at a higher irradiated dose of 1.1ˆ10 6 Gy as shown in the spectrum of sample E.…”

Section: Irradiation Stability and Thermal Stability Of Sc4amentioning

confidence: 76%

“…The main molecular peaks for samples were at 847.2, 847.3, 847.3, 847.2, and 847.3, respectively, showing that there were no discernible changes in the MS spectra. This indicated that there was no group loss even under an irradiation dose of 1.1ˆ10 6 Gy.…”

Section: Irradiation Stability and Thermal Stability Of Sc4amentioning

confidence: 80%

“…Irradiations of SC4A and SC4A/CHCl 3 were carried out at 25˘0.2˝C in air using a 60 Co radiation source (China institute of atomic energy, Beijing, China) with a total absorbed dose ranging from 1.0ˆ10 4 to 1.1ˆ10 6 Gy.…”

Section: Irradiation Procedures and Thermogravimetric Analysismentioning

confidence: 99%

“…137 Cs is an analog of potassium that is easily incorporated in living organisms [3], and 90 Sr can be introduced into the food chain, which seriously threatens human health [4]. They also have an adverse impact on ecology [5,6]. Thus, removal of radioactive contaminants from contaminated water has become a significant environmental matter in recent years.…”

Section: Introductionmentioning

confidence: 99%

See 4 more Smart Citations

Extraction Property of p-tert-Butylsulfonylcalix[4]arene Possessing Irradiation Stability towards Cesium(I) and Strontium(II)

et al. 2016

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Solvent extraction behavior of p-tert-butylsulfonylcalix [4]arene (SC4A) towards Cs(I) and Sr(II) from aqueous solutions was studied with respect to the effects of contact time, pH value, SC4A concentration, nitrate concentration and temperature. The extraction of Na(I), K(I), Mg(II), Ca(II), Ba(II), Pb(II), Cd(II), Zn(II), Co(II), Ni(II), and Ce(III) was also investigated. It was demonstrated that SC4A can sequester both Cs(I) and Sr(II) efficiently from aqueous solutions. According to extraction experiments, Fourier transform infrared and 1 H nuclear magnetic resonance analysis of the metal-SC4A complex, authors proposed a possible mechanism involving formation of an adjustable cavity from two SC4A molecules for the complexation of one alkaline earth metal ion, and the size of the adjustable cavity changes depending on the ion within an appropriate range. Irradiation stability of the SC4A was tested, the results indicated that the main structure of SC4A remained unchanged when the temperature was below 400˝C, and SC4A maintains excellent extraction ability for Cs(I) and Sr(II) under an irradiation dose of 1.0ˆ10 4~1 .1ˆ10 6 Gy.

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Section: Irradiation Stability and Thermal Stability Of Sc4amentioning

confidence: 65%

Section: Irradiation Stability and Thermal Stability Of Sc4amentioning

confidence: 76%

Section: Irradiation Stability and Thermal Stability Of Sc4amentioning

confidence: 80%

Section: Irradiation Procedures and Thermogravimetric Analysismentioning

confidence: 99%

Section: Introductionmentioning

confidence: 99%

See 3 more Smart Citations

Extraction Property of p-tert-Butylsulfonylcalix[4]arene Possessing Irradiation Stability towards Cesium(I) and Strontium(II)

et al. 2016

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Selective metal ion transport through polymer inclusion membrane containing surfactin as carrier reagents

Sun

Zhou

Zhang

et al. 2020

J Chinese Chemical Soc

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Metal ion selective polymer inclusion membrane (PIM) was prepared by using cellulose triacetate as matrix, surfactin (SF) as ion carrier, and 2-nitrophenyl n-octyl ether as plasticizer. The structure and morphology of the prepared PIM were characterized by means of thermogravimetric analysis, scanning electron microscopy, and Fourier transform infrared spectroscopy. The effects of plasticizer and the amount of SF to ionic membrane flux were investigated, and the optimized component was obtained thereof. The selectivity of the membrane toward metal cation was studied and the order of Ni(II) > Ca(II) > Co(II) > Pb(II) > Cu(II) > Mg(II) was followed. In addition, the durability of the PIM was studied by successive reuse of the membrane, and the ionic flux slightly decreased after five cycles of reuse, indicating the excellent durability of the PIM. K E Y W O R D S metal ion, polymer inclusion membrane, selective transport, surfactin

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Extraction equilibrium and thermodynamics of cesium with a new derivative of calix[4]biscrown

Dai

Zhang

2014

J Radioanal Nucl Chem

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A new supermolecular recognition agent named tetra-tert-butyl-calix[4]-bis[(4-methly-1,2-phenylene-crown-6] (TertButylCalixC) was synthesized. Batchwise experiments of extraction of Na(I), K(I), Rb(I), Cs(I), Sr(II), Ba(II), Ru(III) and Fe(III) from aqueous solution with TertButylCalixC/o-nitroanisole were carried out. Effects of HNO 3 concentration, contact time and temperature on the extraction behavior were examined. The equilibrium established within 30 min implied a fast extraction kinetics. The optimal operation temperature was 298 K. Stoichiometry of TertButylCalixC and Cs(I) by electrospray ionization mass spectrometry characterization revealed 1:1 molar ratio. It was observed that the extraction system of TertButylCalixC/o-nitroanisole was effective for selective removal of Cs(I), showing remarkable separation performance.

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Selective separation of cesium from simulated high level liquid waste solution using 1,3-dioctyloxy calix[4]arene-benzo-crown-6

Cited by 18 publications

References 21 publications

Extraction Property of p-tert-Butylsulfonylcalix[4]arene Possessing Irradiation Stability towards Cesium(I) and Strontium(II)

Extraction Property of p-tert-Butylsulfonylcalix[4]arene Possessing Irradiation Stability towards Cesium(I) and Strontium(II)

Selective metal ion transport through polymer inclusion membrane containing surfactin as carrier reagents

Extraction equilibrium and thermodynamics of cesium with a new derivative of calix[4]biscrown

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