期刊
NANOSCALE RESEARCH LETTERS
卷 10, 期 -, 页码 -出版社
SPRINGER
DOI: 10.1186/s11671-015-1004-2
关键词
Deep eutectic solvents; Ionic liquids; Functionalization; Graphene; Dispersion stability; Nanotechnology
资金
- University of Malaya HIR-MOHE [D000003-16001]
- University of Malaya Centre for Ionic Liquids (UMCiL)
Deep eutectic solvents (DESs) have received attention in various applications because of their distinctive properties. In this work, DESs were used as functionalizing agents for graphene due to their potential to introduce new functional groups and cause other surface modifications. Eighteen different types of ammonium-and phosphonium-salt-based DESs were prepared and characterized by FTIR. The graphene was characterized by FTIR, STA, Raman spectroscopy, XRD, SEM, and TEM. Additional experiments were performed to study the dispersion behavior of the functionalized graphene in different solvents. The DESs exhibited both reduction and functionalization effects on DES-treated graphene. Dispersion stability was investigated and then characterized by UV-vis spectroscopy and zeta potential. DES-modified graphene can be used in many applications, such as drug delivery, wastewater treatment, catalysts, composite materials, nanofluids, and biosensors. To the best of our knowledge, this is the first investigation on the use of DESs for graphene functionalization.
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