Effect of Acid Activation on the Sorption Properties of Synthetic Montmorillonite

The sorption capacity and porous-textural characteristics of synthetic montmorillonite subjected to acid activation in a 3M HCl solution in various modes are studied. Single-phase montmorillonite, corresponding to the chemical formula Na 1.0 Al 1.0 Mg 1.0 Si 4 O 10 (OH) 2 . H 2 O, is obtained under...

Full description

Saved in:
Bibliographic Details
Published in:Glass physics and chemistry 2022-12, Vol.48 (6), p.673-675
Main Authors: Golubeva, O. Yu, Brazovskaya, E. Yu, Alikina, Yu. A.
Format: Article
Language:English
Subjects:
Aqueous solutions
Brief Message
Ceramics
Characterization and Evaluation of Materials
Chemistry and Materials Science
Composites
Glass
Materials Science
Methylene blue
Montmorillonite
Natural Materials
Physical Chemistry
Sorption
Citations: Items that this one cites
Items that cite this one
Online Access:Get full text
Tags: Add Tag
No Tags, Be the first to tag this record!
Description
Summary:The sorption capacity and porous-textural characteristics of synthetic montmorillonite subjected to acid activation in a 3M HCl solution in various modes are studied. Single-phase montmorillonite, corresponding to the chemical formula Na 1.0 Al 1.0 Mg 1.0 Si 4 O 10 (OH) 2 . H 2 O, is obtained under hydrothermal conditions. It is established that acid treatment of synthetic montmorillonite leads to an increase in its specific surface area (from 170 to 356 m 2 /g), which is accompanied by a significant decrease in the degree of adsorption of the organic dye methylene blue (from 60 to 25–30% depending on the processing mode) and lead ions (from 35 to 27%) from aqueous solutions.
ISSN:1087-6596
1608-313X
DOI:10.1134/S1087659622600466