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A Facile Preparation Method for New Two-component Supramolecular Hydrogels and Their Performances in Adsorption, Catalysis, and Stimuli-response

Overview
Journal RSC Adv
Specialty Chemistry
Date 2022 May 6
PMID 35519444
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Abstract

In this study, we prepared a novel multifunctional two-component supramolecular hydrogel (T-G hydrogel) two organic molecules in ethanol/water mixed solvents. In addition, we prepared gold nanoparticle/T-G (AuNPs/T-G) composite hydrogels using T-G hydrogel as a template for stabilizing AuNPs by adding HAuCl and NaBH during the heating and cooling process of T-G hydrogels. The morphology and microstructure of the as-prepared hydrogels were characterized using SEM, TEM, XRD, and FT-IR. The hydrogels prepared by solutions that contained different ethanol/water volume ratios exhibited different microstructures, such as sheets, strips, and rods. The obtained T-G hydrogels exhibited a sensitive response to pH changes in the process of sol-gel transformation and showed good adsorption properties for model organic dyes. In the presence of NaBH, the obtained AuNP/T-G composite hydrogels exhibited the excellent catalytic performance for 4-nitrophenol (4-NP) degradation. Thus, the current research provides new clues in developing new multifunctional two-component supramolecular gel materials and exhibits potential applications for wastewater treatment.

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