Adsorptive removal of Sb(V) from water using a mesoporous Zr-based metal–organic framework

Sean Rangwani; Ashlee Howarth; Matthew R. DeStefano; Christos D. Malliakas; Ana E. Platero-Prats; Karena W. Chapman; Omar K. Farha

doi:10.1016/j.poly.2018.05.021

Adsorptive removal of Sb(V) from water using a mesoporous Zr-based metal–organic framework

Sean Rangwani, Ashlee Howarth, Matthew R. DeStefano, Christos D. Malliakas, Ana E. Platero-Prats, Karena W. Chapman, Omar K. Farha^*

^*Corresponding author for this work

Chemistry

Research output: Contribution to journal › Article › peer-review

45 Scopus citations

Abstract

The adsorption and removal of Sb(OH)₆⁻ from water using the water stable Zr₆-based MOF, NU-1000, is explored. The adsorption capacity and uptake time of Sb(OH)₆⁻ in NU-1000 is measured at varying concentrations to determine an overall maximum adsorption capacity of 260 mg of Sb(OH)₆⁻ per g of MOF, corresponding to 2.5 Sb(OH)₆⁻ per node of NU-1000 and exhibiting the highest adsorption capacity of any material reported to date for Sb(V) removal. Differential pair distribution function (dPDF) analysis of total X-ray scattering data reveals that Sb(OH)₆⁻ interacts in an η₂μ₂ fashion with the Zr₆-node of NU-1000, and that as the amount of Sb(OH)₆⁻ adsorbed increases, the interaction between the analyte and the node becomes stronger. Post-adsorption characterization shows that NU-1000 remains stable throughout the adsorption process.

Original language	English (US)
Pages (from-to)	338-343
Number of pages	6
Journal	Polyhedron
Volume	151
DOIs	https://doi.org/10.1016/j.poly.2018.05.021
State	Published - Sep 1 2018

Keywords

Adsorbent
Antimony
Metal–organic framework
Nuclear
Wastewater

ASJC Scopus subject areas

Physical and Theoretical Chemistry
Inorganic Chemistry
Materials Chemistry

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10.1016/j.poly.2018.05.021

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@article{e21c78afa11f4d1fb70ebb99ca5032be,

title = "Adsorptive removal of Sb(V) from water using a mesoporous Zr-based metal–organic framework",

abstract = "The adsorption and removal of Sb(OH)6− from water using the water stable Zr6-based MOF, NU-1000, is explored. The adsorption capacity and uptake time of Sb(OH)6− in NU-1000 is measured at varying concentrations to determine an overall maximum adsorption capacity of 260 mg of Sb(OH)6− per g of MOF, corresponding to 2.5 Sb(OH)6− per node of NU-1000 and exhibiting the highest adsorption capacity of any material reported to date for Sb(V) removal. Differential pair distribution function (dPDF) analysis of total X-ray scattering data reveals that Sb(OH)6− interacts in an η2μ2 fashion with the Zr6-node of NU-1000, and that as the amount of Sb(OH)6− adsorbed increases, the interaction between the analyte and the node becomes stronger. Post-adsorption characterization shows that NU-1000 remains stable throughout the adsorption process.",

keywords = "Adsorbent, Antimony, Metal–organic framework, Nuclear, Wastewater",

author = "Sean Rangwani and Ashlee Howarth and DeStefano, {Matthew R.} and Malliakas, {Christos D.} and Platero-Prats, {Ana E.} and Chapman, {Karena W.} and Farha, {Omar K.}",

note = "Publisher Copyright: {\textcopyright} 2018 Elsevier Ltd",

year = "2018",

month = sep,

day = "1",

doi = "10.1016/j.poly.2018.05.021",

language = "English (US)",

volume = "151",

pages = "338--343",

journal = "Polyhedron",

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TY - JOUR

T1 - Adsorptive removal of Sb(V) from water using a mesoporous Zr-based metal–organic framework

AU - Rangwani, Sean

AU - Howarth, Ashlee

AU - DeStefano, Matthew R.

AU - Malliakas, Christos D.

AU - Platero-Prats, Ana E.

AU - Chapman, Karena W.

AU - Farha, Omar K.

PY - 2018/9/1

Y1 - 2018/9/1

N2 - The adsorption and removal of Sb(OH)6− from water using the water stable Zr6-based MOF, NU-1000, is explored. The adsorption capacity and uptake time of Sb(OH)6− in NU-1000 is measured at varying concentrations to determine an overall maximum adsorption capacity of 260 mg of Sb(OH)6− per g of MOF, corresponding to 2.5 Sb(OH)6− per node of NU-1000 and exhibiting the highest adsorption capacity of any material reported to date for Sb(V) removal. Differential pair distribution function (dPDF) analysis of total X-ray scattering data reveals that Sb(OH)6− interacts in an η2μ2 fashion with the Zr6-node of NU-1000, and that as the amount of Sb(OH)6− adsorbed increases, the interaction between the analyte and the node becomes stronger. Post-adsorption characterization shows that NU-1000 remains stable throughout the adsorption process.

AB - The adsorption and removal of Sb(OH)6− from water using the water stable Zr6-based MOF, NU-1000, is explored. The adsorption capacity and uptake time of Sb(OH)6− in NU-1000 is measured at varying concentrations to determine an overall maximum adsorption capacity of 260 mg of Sb(OH)6− per g of MOF, corresponding to 2.5 Sb(OH)6− per node of NU-1000 and exhibiting the highest adsorption capacity of any material reported to date for Sb(V) removal. Differential pair distribution function (dPDF) analysis of total X-ray scattering data reveals that Sb(OH)6− interacts in an η2μ2 fashion with the Zr6-node of NU-1000, and that as the amount of Sb(OH)6− adsorbed increases, the interaction between the analyte and the node becomes stronger. Post-adsorption characterization shows that NU-1000 remains stable throughout the adsorption process.

KW - Adsorbent

KW - Antimony

KW - Metal–organic framework

KW - Nuclear

KW - Wastewater

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DO - 10.1016/j.poly.2018.05.021

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JO - Polyhedron

JF - Polyhedron

ER -

Adsorptive removal of Sb(V) from water using a mesoporous Zr-based metal–organic framework

Abstract

Keywords

ASJC Scopus subject areas

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