Adsorption Behavior of Sr(II) from High-level Liquid Waste using Crown Ether with Ionic Liquid Impregnated Silica Adsorbent

Tatsuya Kudo; Tatsuya Ito; Seong Yun Kim

doi:10.1016/j.egypro.2017.09.426

Adsorption Behavior of Sr(II) from High-level Liquid Waste using Crown Ether with Ionic Liquid Impregnated Silica Adsorbent

Tatsuya Kudo, Tatsuya Ito, Seong Yun Kim

ENG - Quantum Science and Energy Engineering

Research output: Contribution to journal › Conference article › peer-review

4 Citations (Scopus)

Abstract

4'4'(5')-di(tert-butylcyclohexano)-18-crown-6 (DtBuCH18C6) modified with 1-ethyl-3-methylimidazolium bis (trifluoro methylsulfonyl) imide ([C₂mim][NTf₂]) was loaded onto porous silica/polymer composite support (SiO₂-P) particles with a mean diameter of 50 μm and used to extract Sr(II) from HNO₃ solutions. The effect of HNO₃ concentration on the equilibrium kinetics and thermodynamic properties of Sr(II) uptake were investigated by batch methods. The adsorbent exhibited excellent adsorption selectively for Sr(II) over a wide range of HNO₃ concentrations. The adsorption of Sr(II) in the presence of 3 M HNO₃ on (DtBuCH18C6+[C₂mim][NTf₂])/SiO₂-P attained equilibrium within 1 h, and a relatively large distribution coefficient (K_d) of ca. 30 cm³·g^-1 was obtained. Kinetic data were successfully modeled using pseudo-second-order kinetics. The adsorption of Sr(II) was a spontaneous and exothermic process. The uptake isotherm of Sr(II) for (DtBuCH18C6+[C₂mim][NTf₂])/SiO₂-P followed a Langmuir-type adsorption equation.

Original language	English
Pages (from-to)	189-194
Number of pages	6
Journal	Energy Procedia
Volume	131
DOIs	https://doi.org/10.1016/j.egypro.2017.09.426
Publication status	Published - 2017
Event	5th International Symposium on Innovative Nuclear Energy Systems, INES-5 2016 - Tokyo, Japan Duration: 2017 Oct 31 → 2017 Nov 2

Keywords

Adsorption
High-level Liquid Water
Impregnated Silica Adsorbent
Ionic Liquid
Strontium

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10.1016/j.egypro.2017.09.426

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@article{478e4c4e457e4ac88bd5fe7a57f891e3,

title = "Adsorption Behavior of Sr(II) from High-level Liquid Waste using Crown Ether with Ionic Liquid Impregnated Silica Adsorbent",

abstract = "4'4'(5')-di(tert-butylcyclohexano)-18-crown-6 (DtBuCH18C6) modified with 1-ethyl-3-methylimidazolium bis (trifluoro methylsulfonyl) imide ([C2mim][NTf2]) was loaded onto porous silica/polymer composite support (SiO2-P) particles with a mean diameter of 50 μm and used to extract Sr(II) from HNO3 solutions. The effect of HNO3 concentration on the equilibrium kinetics and thermodynamic properties of Sr(II) uptake were investigated by batch methods. The adsorbent exhibited excellent adsorption selectively for Sr(II) over a wide range of HNO3 concentrations. The adsorption of Sr(II) in the presence of 3 M HNO3 on (DtBuCH18C6+[C2mim][NTf2])/SiO2-P attained equilibrium within 1 h, and a relatively large distribution coefficient (Kd) of ca. 30 cm3·g-1 was obtained. Kinetic data were successfully modeled using pseudo-second-order kinetics. The adsorption of Sr(II) was a spontaneous and exothermic process. The uptake isotherm of Sr(II) for (DtBuCH18C6+[C2mim][NTf2])/SiO2-P followed a Langmuir-type adsorption equation.",

keywords = "Adsorption, High-level Liquid Water, Impregnated Silica Adsorbent, Ionic Liquid, Strontium",

author = "Tatsuya Kudo and Tatsuya Ito and Kim, {Seong Yun}",

note = "Funding Information: This work was supported by JSPS KAKENHI Grant Number 16H02444. Publisher Copyright: {\textcopyright} 2017 The Authors. Published by Elsevier Ltd.; 5th International Symposium on Innovative Nuclear Energy Systems, INES-5 2016 ; Conference date: 31-10-2017 Through 02-11-2017",

year = "2017",

doi = "10.1016/j.egypro.2017.09.426",

language = "English",

volume = "131",

pages = "189--194",

journal = "Energy Procedia",

issn = "1876-6102",

publisher = "Elsevier BV",

}

TY - JOUR

T1 - Adsorption Behavior of Sr(II) from High-level Liquid Waste using Crown Ether with Ionic Liquid Impregnated Silica Adsorbent

AU - Kudo, Tatsuya

AU - Ito, Tatsuya

AU - Kim, Seong Yun

PY - 2017

Y1 - 2017

N2 - 4'4'(5')-di(tert-butylcyclohexano)-18-crown-6 (DtBuCH18C6) modified with 1-ethyl-3-methylimidazolium bis (trifluoro methylsulfonyl) imide ([C2mim][NTf2]) was loaded onto porous silica/polymer composite support (SiO2-P) particles with a mean diameter of 50 μm and used to extract Sr(II) from HNO3 solutions. The effect of HNO3 concentration on the equilibrium kinetics and thermodynamic properties of Sr(II) uptake were investigated by batch methods. The adsorbent exhibited excellent adsorption selectively for Sr(II) over a wide range of HNO3 concentrations. The adsorption of Sr(II) in the presence of 3 M HNO3 on (DtBuCH18C6+[C2mim][NTf2])/SiO2-P attained equilibrium within 1 h, and a relatively large distribution coefficient (Kd) of ca. 30 cm3·g-1 was obtained. Kinetic data were successfully modeled using pseudo-second-order kinetics. The adsorption of Sr(II) was a spontaneous and exothermic process. The uptake isotherm of Sr(II) for (DtBuCH18C6+[C2mim][NTf2])/SiO2-P followed a Langmuir-type adsorption equation.

AB - 4'4'(5')-di(tert-butylcyclohexano)-18-crown-6 (DtBuCH18C6) modified with 1-ethyl-3-methylimidazolium bis (trifluoro methylsulfonyl) imide ([C2mim][NTf2]) was loaded onto porous silica/polymer composite support (SiO2-P) particles with a mean diameter of 50 μm and used to extract Sr(II) from HNO3 solutions. The effect of HNO3 concentration on the equilibrium kinetics and thermodynamic properties of Sr(II) uptake were investigated by batch methods. The adsorbent exhibited excellent adsorption selectively for Sr(II) over a wide range of HNO3 concentrations. The adsorption of Sr(II) in the presence of 3 M HNO3 on (DtBuCH18C6+[C2mim][NTf2])/SiO2-P attained equilibrium within 1 h, and a relatively large distribution coefficient (Kd) of ca. 30 cm3·g-1 was obtained. Kinetic data were successfully modeled using pseudo-second-order kinetics. The adsorption of Sr(II) was a spontaneous and exothermic process. The uptake isotherm of Sr(II) for (DtBuCH18C6+[C2mim][NTf2])/SiO2-P followed a Langmuir-type adsorption equation.

KW - Adsorption

KW - High-level Liquid Water

KW - Impregnated Silica Adsorbent

KW - Ionic Liquid

KW - Strontium

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U2 - 10.1016/j.egypro.2017.09.426

DO - 10.1016/j.egypro.2017.09.426

M3 - Conference article

AN - SCOPUS:85042026578

SN - 1876-6102

VL - 131

SP - 189

EP - 194

JO - Energy Procedia

JF - Energy Procedia

T2 - 5th International Symposium on Innovative Nuclear Energy Systems, INES-5 2016

Y2 - 31 October 2017 through 2 November 2017

ER -

Adsorption Behavior of Sr(II) from High-level Liquid Waste using Crown Ether with Ionic Liquid Impregnated Silica Adsorbent

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Keywords

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