Journal
INDUSTRIAL & ENGINEERING CHEMISTRY RESEARCH
Volume 53, Issue 33, Pages 13205-13209Publisher
AMER CHEMICAL SOC
DOI: 10.1021/ie501448p
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Funding
- National Natural Science Funds for Excellent Young Scholars [21222608]
- National Natural Science Foundation of China [21106099]
- Foundation for the Author of National Excellent Doctoral Dissertation of China [201251]
- Tianjin Natural Science Foundation [11JCYBJC01700]
- Programme of Introducing Talents of Discipline to Universities [B06006]
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In this study, reduced graphene oxide was functionalized with ethylenediamine (EDA) by a simple one-pot process, using a lithium ethylenediamine derivative as a nucleophilic reagent at 50 degrees C for 10 h. The presence of EDA chains in graphene was identified by Fourier transform infrared spectroscopy (FTIR), electronic energy loss spectroscopy (EELS), X-ray photoelectron spectroscopy (XPS), and zeta potential. By using the simple amidation reaction of EDA modified graphene and subsequent host guest interactions between beta-cyclodextrins (beta-CDs) and polymers carrying guest moieties, we also synthesized a new type of graphene-based beta-CD supramolecular hydrogels. The obtained hydrogels exhibited the gel-to-sol transition by adding a competitive guest sodium adamantine carboxylate (AdCNa) or competitive host alpha-CD.
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