Selective capture of hexavalent chromium from an anion-exchange column of metal organic resin-alginic acid composite

Sofia Rapti; Anastasia Pournara; Debajit Sarma; Ioannis T. Papadas; Gerasimos S. Armatas; Athanassios C. Tsipis; Theodore Lazarides; Mercouri G. Kanatzidis; Manolis J. Manos

doi:10.1039/c5sc03732h

Selective capture of hexavalent chromium from an anion-exchange column of metal organic resin-alginic acid composite

Sofia Rapti, Anastasia Pournara, Debajit Sarma, Ioannis T. Papadas, Gerasimos S. Armatas, Athanassios C. Tsipis, Theodore Lazarides, Mercouri G. Kanatzidis, Manolis J. Manos^*

^*Corresponding author for this work

Chemistry

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

100 Scopus citations

Abstract

We report an anion exchange composite material based on a protonated amine-functionalized metal-organic framework, denoted Metal Organic Resin-1 (MOR-1), and alginic acid (HA). MOR-1-HA material shows an exceptional capability to rapidly and selectively sorb Cr(vi) under a variety of conditions and in the presence of several competitive ions. The selectivity of MOR-1-HA for Cr(vi) is shown to be the result of strong O₃Cr^VI⋯NH₂ interactions. The composite sorbent can be successfully utilized in an ion-exchange column, in contrast to pristine MOR-1 which forms fine suspensions in water passing through the column. Remarkably, an ion exchange column with only 1% wt MOR-1-HA and 99% wt sand (an inert and inexpensive material) is capable of reducing moderate and trace Cr(vi) concentrations to well below the acceptable safety limits for water. The relatively low cost of MOR-1-HA/sand column and its high regeneration capability and reusability make it particularly attractive for application in the remediation of Cr(vi)-bearing industrial waste.

Original language	English (US)
Pages (from-to)	2427-2436
Number of pages	10
Journal	Chemical Science
Volume	7
Issue number	3
DOIs	https://doi.org/10.1039/c5sc03732h
State	Published - Mar 1 2016

ASJC Scopus subject areas

Chemistry(all)

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Rapti, Sofia ; Pournara, Anastasia ; Sarma, Debajit ; Papadas, Ioannis T. ; Armatas, Gerasimos S. ; Tsipis, Athanassios C. ; Lazarides, Theodore ; Kanatzidis, Mercouri G. ; Manos, Manolis J. / Selective capture of hexavalent chromium from an anion-exchange column of metal organic resin-alginic acid composite. In: Chemical Science. 2016 ; Vol. 7, No. 3. pp. 2427-2436.

@article{4c35ab8c927845fbb0e1ff40f906ecc6,

title = "Selective capture of hexavalent chromium from an anion-exchange column of metal organic resin-alginic acid composite",

abstract = "We report an anion exchange composite material based on a protonated amine-functionalized metal-organic framework, denoted Metal Organic Resin-1 (MOR-1), and alginic acid (HA). MOR-1-HA material shows an exceptional capability to rapidly and selectively sorb Cr(vi) under a variety of conditions and in the presence of several competitive ions. The selectivity of MOR-1-HA for Cr(vi) is shown to be the result of strong O3CrVI⋯NH2 interactions. The composite sorbent can be successfully utilized in an ion-exchange column, in contrast to pristine MOR-1 which forms fine suspensions in water passing through the column. Remarkably, an ion exchange column with only 1% wt MOR-1-HA and 99% wt sand (an inert and inexpensive material) is capable of reducing moderate and trace Cr(vi) concentrations to well below the acceptable safety limits for water. The relatively low cost of MOR-1-HA/sand column and its high regeneration capability and reusability make it particularly attractive for application in the remediation of Cr(vi)-bearing industrial waste.",

author = "Sofia Rapti and Anastasia Pournara and Debajit Sarma and Papadas, {Ioannis T.} and Armatas, {Gerasimos S.} and Tsipis, {Athanassios C.} and Theodore Lazarides and Kanatzidis, {Mercouri G.} and Manos, {Manolis J.}",

note = "Funding Information: The powder X-ray diffraction unit of the Network of Research Supporting Laboratories at the University of Ioannina is acknowledged. The work performed at Northwestern University was supported by National Science Foundation grant DMR-1410169.",

year = "2016",

month = mar,

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doi = "10.1039/c5sc03732h",

language = "English (US)",

volume = "7",

pages = "2427--2436",

journal = "Chemical Science",

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publisher = "Royal Society of Chemistry",

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Selective capture of hexavalent chromium from an anion-exchange column of metal organic resin-alginic acid composite. / Rapti, Sofia; Pournara, Anastasia; Sarma, Debajit; Papadas, Ioannis T.; Armatas, Gerasimos S.; Tsipis, Athanassios C.; Lazarides, Theodore; Kanatzidis, Mercouri G.; Manos, Manolis J.

In: Chemical Science, Vol. 7, No. 3, 01.03.2016, p. 2427-2436.

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

TY - JOUR

T1 - Selective capture of hexavalent chromium from an anion-exchange column of metal organic resin-alginic acid composite

AU - Rapti, Sofia

AU - Pournara, Anastasia

AU - Sarma, Debajit

AU - Papadas, Ioannis T.

AU - Armatas, Gerasimos S.

AU - Tsipis, Athanassios C.

AU - Lazarides, Theodore

AU - Kanatzidis, Mercouri G.

AU - Manos, Manolis J.

N1 - Funding Information: The powder X-ray diffraction unit of the Network of Research Supporting Laboratories at the University of Ioannina is acknowledged. The work performed at Northwestern University was supported by National Science Foundation grant DMR-1410169.

PY - 2016/3/1

Y1 - 2016/3/1

N2 - We report an anion exchange composite material based on a protonated amine-functionalized metal-organic framework, denoted Metal Organic Resin-1 (MOR-1), and alginic acid (HA). MOR-1-HA material shows an exceptional capability to rapidly and selectively sorb Cr(vi) under a variety of conditions and in the presence of several competitive ions. The selectivity of MOR-1-HA for Cr(vi) is shown to be the result of strong O3CrVI⋯NH2 interactions. The composite sorbent can be successfully utilized in an ion-exchange column, in contrast to pristine MOR-1 which forms fine suspensions in water passing through the column. Remarkably, an ion exchange column with only 1% wt MOR-1-HA and 99% wt sand (an inert and inexpensive material) is capable of reducing moderate and trace Cr(vi) concentrations to well below the acceptable safety limits for water. The relatively low cost of MOR-1-HA/sand column and its high regeneration capability and reusability make it particularly attractive for application in the remediation of Cr(vi)-bearing industrial waste.

AB - We report an anion exchange composite material based on a protonated amine-functionalized metal-organic framework, denoted Metal Organic Resin-1 (MOR-1), and alginic acid (HA). MOR-1-HA material shows an exceptional capability to rapidly and selectively sorb Cr(vi) under a variety of conditions and in the presence of several competitive ions. The selectivity of MOR-1-HA for Cr(vi) is shown to be the result of strong O3CrVI⋯NH2 interactions. The composite sorbent can be successfully utilized in an ion-exchange column, in contrast to pristine MOR-1 which forms fine suspensions in water passing through the column. Remarkably, an ion exchange column with only 1% wt MOR-1-HA and 99% wt sand (an inert and inexpensive material) is capable of reducing moderate and trace Cr(vi) concentrations to well below the acceptable safety limits for water. The relatively low cost of MOR-1-HA/sand column and its high regeneration capability and reusability make it particularly attractive for application in the remediation of Cr(vi)-bearing industrial waste.

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