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A thixotropic supramolecular metallogel with a 2D sheet morphology: iodine sequestration and column based dye separation

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Abstract

Sequestration of hazardous radioactive iodine and dye separation to reduce industrial waste through reutilization is pivotal for environmental safety. In this regard, herein, the synthesis of a new waterborne ultrasensitive supramolecular metallogel (Mg@DEOA) with a 2D sheet morphology is accomplished through direct mixing of a low molecular weight gelator diethanolamine and magnesium nitrate hexahydrate. This porous metallogel (180 m2 g−1) exhibits thixotropic properties and is injectable. The material was found to be an effective (587 mg g−1) host matrix for iodine sequestration from solution. Moreover, the Mg@DEOA xerogel was used to efficiently remove rhodamine B from a mixture of dyes with high separation factors through a xerogel packed column and as an adsorbent material for water-soluble dyes and CO. This column based application demonstrated by the metallogel could be useful for practical industrial dye-separation.

Graphical abstract: A thixotropic supramolecular metallogel with a 2D sheet morphology: iodine sequestration and column based dye separation

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Supplementary files

Article information


Submitted
23 May 2020
Accepted
28 Sep 2020
First published
29 Sep 2020

Soft Matter, 2020, Advance Article
Article type
Paper

A thixotropic supramolecular metallogel with a 2D sheet morphology: iodine sequestration and column based dye separation

N. Alam and D. Sarma, Soft Matter, 2020, Advance Article , DOI: 10.1039/D0SM00959H

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