Squaramide-based supramolecular gels for the removal of organic dyes from water matrices

Abstract

A novel family of symmetric squaramide-based LMWGs has been synthesised, functionalized with both dansyl moieties and alkyl chain spacers of different lengths (n = 3 and n = 4 named L1 and L2, respectively). L1 and L2 are able to form hydrogels in the DMSO : H2O mixture in different ratios and concentrations. The gels obtained were characterized by means of rheology, TEM and small angle X-ray scattering (SAXS). Afterwards, the adsorption properties of these materials were studied and the gels were used for the removal of dyes, in particular Nile Blue A, Rose Bengal and Naphthol Yellow S from water samples. The reported results demonstrated the potential use of these materials for the removal of dyes in real polluted water matrices.

Graphical abstract: Squaramide-based supramolecular gels for the removal of organic dyes from water matrices

Supplementary files

Article information

Article type
Paper
Submitted
28 Dec 2024
Accepted
27 Feb 2025
First published
07 Mar 2025
This article is Open Access
Creative Commons BY-NC license

Soft Matter, 2025, Advance Article

Squaramide-based supramolecular gels for the removal of organic dyes from water matrices

J. Milia, S. Bianco, T. S. Plivelic, E. R. Draper, G. Picci and C. Caltagirone, Soft Matter, 2025, Advance Article , DOI: 10.1039/D4SM01538J

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