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Functionalization of graphene using deep eutectic solvents.

Maan Hayyan¹, Ali Abo-Hamad, Mohammed AbdulHakim AlSaadi

¹University of Malaya Centre for Ionic Liquids (UMCiL), University of Malaya, Kuala Lumpur, 50603, Malaysia, maan_hayyan@yahoo.com.

Nanoscale Research Letters

|August 13, 2015

Summary

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Deep eutectic solvents (DESs) functionalize graphene, enhancing its properties for diverse applications. This novel approach modifies graphene surfaces, improving its performance in areas like drug delivery and catalysis.

Area of Science:

Materials Science
Nanotechnology
Green Chemistry

Background:

Deep eutectic solvents (DESs) are gaining attention for their unique properties and potential applications.
Graphene, a remarkable material, requires surface modification for optimized performance in various fields.

Purpose of the Study:

To explore the use of DESs as novel functionalizing agents for graphene.
To investigate the surface modification and dispersion behavior of DES-treated graphene.

Main Methods:

Preparation and characterization of eighteen ammonium- and phosphonium-salt-based DESs using FTIR.
Characterization of functionalized graphene using FTIR, STA, Raman spectroscopy, XRD, SEM, and TEM.
Evaluation of dispersion stability via UV-vis spectroscopy and zeta potential measurements.

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Main Results:

DESs demonstrated both reduction and functionalization effects on graphene.
Modified graphene exhibited improved dispersion characteristics in various solvents.
Successful functionalization of graphene using DESs was confirmed through comprehensive characterization.

Conclusions:

This study presents the first investigation into using DESs for graphene functionalization.
DES-modified graphene shows promise for applications in drug delivery, wastewater treatment, catalysis, composite materials, nanofluids, and biosensors.