A method for controlling an amount of epoxy groups introduced into a graphene oxide of the present invention comprises following steps of: a) mixing graphene with peracetic acid to prepare a mixture; and b) introducing an epoxy group into the graphene by irradiating microwave to the mixture. ...
Graphene oxide is highly desired for printing electronics, catalysis, energy storage, separation membranes, biomedicine, and composites. However, the present synthesis methods depend on the reactions of graphite with mixed strong oxidants, which suffer from explosion risk, serious environmental pollution, ...
Synthesis of Graphene Oxide using Modified Hummers Method: Solvent Influence The aim of this study is to study the influence of different solvents on the structure and electrical properties of graphene oxide. GO was obtained from gr... NI Zaaba,KL Foo,U Hashim,... - 《Procedia Engineering》...
While the production of graphene oxide (GO) and reduced graphene oxide (rGO) have been typically created from synthetic and flake graphite, high purity natural vein graphite has yet to be utilized fully. Therefore, the objective of the present study was to synthesize GO and rGO from high purit...
Propertiesofgrapheneandgrapheneoxide Applications ABSTRACT Thankstotheirremarkablemechanical,electrical,thermal,andbarrierproperties,graphene-basednano- compositeshavebeenahotareaofresearchinthepastdecade.Becauseoftheirsimpletop-downsynthesis, grapheneoxide(GO)andreducedgrapheneoxide(rGO)haveopenednewpossibilitiesforgasbar...
Functionalized graphene oxide (GO)/SiO2nanocomposites (FGS) was successfully fabricated by two steps; the first one was the combustion of RHP in covered crucible inside stainless steel autoclave at three different temperature, 400, 500, and 600 °C at 1 h for obtaining ash RHA1, RHA2, and ...
2.3Graphene oxide Because synthetizing graphene is expensive and rather intricate, many efforts have been made to reach appropriate cost-effective methods to develop and utilize graphene derivatives and other associated materials. Grapheneoxide, which is a single-atomic layered carbon-based material and ...
Using GQDs as a fluorescent component in metal oxide has proven to be an effective strategy for constructing integrated quenchers on fluorescence “turn off–on” systems to enhance the selectivity and sensitivity of fluorescent sensors (Wolfbeis2015). For instance, introducing GQDs on 2D materials ...
Methods Graphene oxide synthesis GO was prepared by the modified Hummers’ method as reported elsewhere. Briefly, 2 g graphite powders were added to a mixture of 1 g NaNO3and 46 ml H2SO4and the mixture was cooled to 10 °C using an ice bath. In the next step, 6 g KMnO4was gradually...
As a reliable and scalable precursor of graphene, graphene oxide (GO) is of great importance. However, the environmentally hazardous heavy metals and poisonous gases, explosion risk and long reaction times involved in the current synthesis methods of GO increase the production costs and hinder its ...