Abstract
In the present study, a novel silica-graphene nanohybrid was synthesized through a facile and single step chemical vapor deposition of acetylene on silica aerogel in the presence of hydrogen as a reducing agent at atmospheric pressure and 600°C. The physiochemical properties of the nanohybrid were thoroughly characterized by XRD, TGA, Raman, BET, DLS, FT-IR, SEM, and TEM. The amount of graphene in the silica-graphene nanohybrid was found to be 16wt% while a remarkable specific surface area about 843.64m2/g has been accomplished. The as-prepared nanohybrid was employed for stabilization of decalin/water emulsion. In addition, the effective factors on the droplets size and condition of stabilization for emulsion preparation were investigated through Taguchi L16 statistical design. Ultimately, the Wilhemy plate method shows that by dispersion of nanohybrid in water/decalin emulsion the interfacial tension (IFT) can be considerably declined from 55 to 30.12mN/m.
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