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Sulfonyl Hydrazone Cholesterol Conjugate: Gelation, Anion Interaction with Application in Dye Adsorption

Abstract

Cholesterol appended sulfonyl hydrazone derivative 1 has been designed and synthesized as supramolecular gelator for anionic sensing and dye adsorption. Gelator 1 forms a stable gel from DMSO-H2O. Intermolecular H-bonding involving the sulfonamide moieties and hydrophobic interaction between the cholesterol units encourage gelation. SEM images of the xerogels show tiny rod-like fibrous structures. Rheological studies of the gel reveal the viscoelastic nature of the material . The gels of 1 exhibit a sharp and selective response toward CN- and F- ions causing gel-to-sol transformation. The gels of 1 are also potent in adsorption and removal of anionic dyes, such as erythrosine B and uranine, from water. Preparation of a gel column with the gel of 1 shows reasonably high one time erythrosine B removal efficiency and establishes its potential and promising real-life applicability in water purification.

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Publication details

The article was received on 05 Nov 2018, accepted on 03 May 2019 and first published on 03 May 2019


Article type: Paper
DOI: 10.1039/C8NJ05613G
New J. Chem., 2019, Accepted Manuscript

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    Sulfonyl Hydrazone Cholesterol Conjugate: Gelation, Anion Interaction with Application in Dye Adsorption

    A. Panja, S. Ghosh and K. Ghosh, New J. Chem., 2019, Accepted Manuscript , DOI: 10.1039/C8NJ05613G

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