Preparation and performance of graphene by liquid phase method
In this paper,graphene is ultrasonically obtained by liquid phase stripping with pure water as solvent,hexadecyl trimethyl ammonium bromide(CTAB)as assistant.The detachment of graphene under three different ultrasound time is investigated.The mor-phology and structure of graphene dispersions are analyzed by X-ray(XRD)and Raman,and the strength ratios and layers are calcu-lated by using characteristic Raman spectra.The caculated tests show that ID/ID′is less than 3.5,indicating that the defect is small,and I2D/IG is less than 0.55,meaning that the layer number is less than 7.With the increase of ultrasonic time,the number of stripped gra-phene layers decreases.This study provides a reference for the green preparation of graphene.
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