Issue 54, 2019

Converting Mn/Al layered double hydroxide anion exchangers into cation exchangers by topotactic reactions using alkali metal sulfate solutions

Abstract

Layered double hydroxides (LDHs), traditional anion exchangers, can be converted into cation exchangers by topotactic reactions using aqueous solutions of alkali metal sulfates. LDHs with the composition [Mn2Al(OH)6](An)1/n·yH2O (An = Cl or NO3, CO32−) were reacted with aqueous solutions of Na2SO4. The anion carbonate could only be partially replaced by sulfate.

Graphical abstract: Converting Mn/Al layered double hydroxide anion exchangers into cation exchangers by topotactic reactions using alkali metal sulfate solutions

Supplementary files

Article information

Article type
Communication
Submitted
06 May 2019
Accepted
12 Jun 2019
First published
13 Jun 2019

Chem. Commun., 2019,55, 7824-7827

Converting Mn/Al layered double hydroxide anion exchangers into cation exchangers by topotactic reactions using alkali metal sulfate solutions

A. R. Sotiles and F. Wypych, Chem. Commun., 2019, 55, 7824 DOI: 10.1039/C9CC03491A

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