Umbite type zirconium germanates for Cs removal

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Umbite type zirconium germanates for Cs removal. / George, Ryan; Hriljac, Joseph A.

In: MRS Advances, Vol. 2, No. 13, 2017, p. 729-734.

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George, Ryan ; Hriljac, Joseph A. / Umbite type zirconium germanates for Cs removal. In: MRS Advances. 2017 ; Vol. 2, No. 13. pp. 729-734.

Bibtex

@article{cf6e470752be4857b3370eae3ce431d8,
title = "Umbite type zirconium germanates for Cs removal",
abstract = "Pure and Nb-doped zirconium germanate materials of composition K2-xZr1-xNbxGe3O9.H2O where x = 0, 0.1, 0.2 and 0.3 with the structure of the natural mineral umbite have been prepared in high yield using hydrothermal synthesis methods. The parent material displays virtually no ion exchange of the K+ for Cs+ but the doped materials show rapidly enhanced exchange with replacement of ca. 70% of the K+ by Cs+ for the 30% doped material. Rietveld analysis of the powder X-ray diffraction data is consistent with no change in the unit cell parameters or K+ bonding prior to the exchange, hence we propose the improved property is due to the creation of cation defect sites within the pores of the material that facilities greater cation mobility and leads to exchange.",
keywords = "ion-exchange material, Cs, waste management",
author = "Ryan George and Hriljac, {Joseph A.}",
year = "2017",
doi = "10.1557/adv.2017.173",
language = "English",
volume = "2",
pages = "729--734",
journal = "MRS Advances",
issn = "2059-8521",
publisher = "Cambridge University Press",
number = "13",

}

RIS

TY - JOUR

T1 - Umbite type zirconium germanates for Cs removal

AU - George, Ryan

AU - Hriljac, Joseph A.

PY - 2017

Y1 - 2017

N2 - Pure and Nb-doped zirconium germanate materials of composition K2-xZr1-xNbxGe3O9.H2O where x = 0, 0.1, 0.2 and 0.3 with the structure of the natural mineral umbite have been prepared in high yield using hydrothermal synthesis methods. The parent material displays virtually no ion exchange of the K+ for Cs+ but the doped materials show rapidly enhanced exchange with replacement of ca. 70% of the K+ by Cs+ for the 30% doped material. Rietveld analysis of the powder X-ray diffraction data is consistent with no change in the unit cell parameters or K+ bonding prior to the exchange, hence we propose the improved property is due to the creation of cation defect sites within the pores of the material that facilities greater cation mobility and leads to exchange.

AB - Pure and Nb-doped zirconium germanate materials of composition K2-xZr1-xNbxGe3O9.H2O where x = 0, 0.1, 0.2 and 0.3 with the structure of the natural mineral umbite have been prepared in high yield using hydrothermal synthesis methods. The parent material displays virtually no ion exchange of the K+ for Cs+ but the doped materials show rapidly enhanced exchange with replacement of ca. 70% of the K+ by Cs+ for the 30% doped material. Rietveld analysis of the powder X-ray diffraction data is consistent with no change in the unit cell parameters or K+ bonding prior to the exchange, hence we propose the improved property is due to the creation of cation defect sites within the pores of the material that facilities greater cation mobility and leads to exchange.

KW - ion-exchange material

KW - Cs

KW - waste management

UR - http://www.scopus.com/inward/record.url?scp=85041296042&partnerID=8YFLogxK

U2 - 10.1557/adv.2017.173

DO - 10.1557/adv.2017.173

M3 - Article

AN - SCOPUS:85041296042

VL - 2

SP - 729

EP - 734

JO - MRS Advances

JF - MRS Advances

SN - 2059-8521

IS - 13

ER -