Novel function for anionic clays: Selective transition metal cation uptake by diadochy

Sridhar Komarneni; Naofumi Kozai; Rustum Roy

doi:10.1039/a801631c

Novel function for anionic clays: Selective transition metal cation uptake by diadochy

Sridhar Komarneni, Naofumi Kozai, Rustum Roy

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

120 Scopus citations

Abstract

Here we report for the first time, the extremely high and selective uptake of transition metal cations such as Cu²⁺, Ni²⁺, Co²⁺ and Zn²⁺ by two anionic clays of nominal composition, [Mg₆Al₂(OH)₁₆]²⁺[CO ₃·4H₂O]^2- and [Mg₂Al(OH)₆]⁺[NO₃·2H ₂O]^-. We postulate that the principal mechanism of this selective cation uptake is by substitution in the anionic clay structure for mainly Mg through a process known as diadochy. This newly discovered function for anionic clays is useful for the decontamination and immobilization of the above transition metals at room temperature and may find applications in the remediation of metal contaminated soils, filtration of drinking water as well as decontamination of waste waters.

Original language	English (US)
Pages (from-to)	1329-1331
Number of pages	3
Journal	Journal of Materials Chemistry
Volume	8
Issue number	6
DOIs	https://doi.org/10.1039/a801631c
State	Published - Jun 1998

All Science Journal Classification (ASJC) codes

Chemistry(all)
Materials Chemistry

Access to Document

10.1039/a801631c

Cite this

@article{1f34a663f12e4df6a4a37686d95e9672,

title = "Novel function for anionic clays: Selective transition metal cation uptake by diadochy",

abstract = "Here we report for the first time, the extremely high and selective uptake of transition metal cations such as Cu2+, Ni2+, Co2+ and Zn2+ by two anionic clays of nominal composition, [Mg6Al2(OH)16]2+[CO 3·4H2O]2- and [Mg2Al(OH)6]+[NO3·2H 2O]-. We postulate that the principal mechanism of this selective cation uptake is by substitution in the anionic clay structure for mainly Mg through a process known as diadochy. This newly discovered function for anionic clays is useful for the decontamination and immobilization of the above transition metals at room temperature and may find applications in the remediation of metal contaminated soils, filtration of drinking water as well as decontamination of waste waters.",

author = "Sridhar Komarneni and Naofumi Kozai and Rustum Roy",

year = "1998",

month = jun,

doi = "10.1039/a801631c",

language = "English (US)",

volume = "8",

pages = "1329--1331",

journal = "Journal of Materials Chemistry",

issn = "0959-9428",

publisher = "Royal Society of Chemistry",

number = "6",

}

TY - JOUR

T1 - Novel function for anionic clays

T2 - Selective transition metal cation uptake by diadochy

AU - Komarneni, Sridhar

AU - Kozai, Naofumi

AU - Roy, Rustum

PY - 1998/6

Y1 - 1998/6

N2 - Here we report for the first time, the extremely high and selective uptake of transition metal cations such as Cu2+, Ni2+, Co2+ and Zn2+ by two anionic clays of nominal composition, [Mg6Al2(OH)16]2+[CO 3·4H2O]2- and [Mg2Al(OH)6]+[NO3·2H 2O]-. We postulate that the principal mechanism of this selective cation uptake is by substitution in the anionic clay structure for mainly Mg through a process known as diadochy. This newly discovered function for anionic clays is useful for the decontamination and immobilization of the above transition metals at room temperature and may find applications in the remediation of metal contaminated soils, filtration of drinking water as well as decontamination of waste waters.

AB - Here we report for the first time, the extremely high and selective uptake of transition metal cations such as Cu2+, Ni2+, Co2+ and Zn2+ by two anionic clays of nominal composition, [Mg6Al2(OH)16]2+[CO 3·4H2O]2- and [Mg2Al(OH)6]+[NO3·2H 2O]-. We postulate that the principal mechanism of this selective cation uptake is by substitution in the anionic clay structure for mainly Mg through a process known as diadochy. This newly discovered function for anionic clays is useful for the decontamination and immobilization of the above transition metals at room temperature and may find applications in the remediation of metal contaminated soils, filtration of drinking water as well as decontamination of waste waters.

UR - http://www.scopus.com/inward/record.url?scp=0000426978&partnerID=8YFLogxK

UR - http://www.scopus.com/inward/citedby.url?scp=0000426978&partnerID=8YFLogxK

U2 - 10.1039/a801631c

DO - 10.1039/a801631c

M3 - Article

AN - SCOPUS:0000426978

SN - 0959-9428

VL - 8

SP - 1329

EP - 1331

JO - Journal of Materials Chemistry

JF - Journal of Materials Chemistry

IS - 6

ER -

Novel function for anionic clays: Selective transition metal cation uptake by diadochy

Abstract

All Science Journal Classification (ASJC) codes

Access to Document

Other files and links

Fingerprint

Cite this