Abstract
ABSTRACTIn this paper, new two-component supramolecular gels via 2,2-bis(4-carboxyphenyl)hexafluoropropane and N-(4-Aminobenzoyl)-L-glutamic acid diethyl ester have been prepared and tested in ethanol/water mixed solvents. Scanning electron microscope (SEM), Transmission electron microscope (TEM), powder X-ray diffraction (XRD), and Fourier Transform Infrared Spectroscopy (FT-IR) were measured to characterize the morphology and nanostructure of the prepared supramolecular gels. The obtained experimental data reveal that different mixed solvents ratios play an important role in regulating formation of nanostructures and the gelation behaviors. Favorable volume ratios in ethanol/water mixed solvents seemed suitable for the formation of supramolecular gels due to cooperation of multi-intermolecular weak forces. SEM and TEM observations indicate that the gelator molecules self-assemble into different aggregate nanostructures including sheets, rods, bar shape, and belt in different solvents ratios. The adsorption capacities of the as-obtained supramolecular gels on model dyes demonstrate good removal rates with the adsorption process according to rather pseudo-first-order model than pseudo-second-order model. The present research work show it potential to prepare new gel soft materials and promising candidates for wastewater treatment.
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