Exfoliation of graphite oxide to GO was achieved by ultrasonication of the dispersion using a Brandson Digital Sonifier (S450D, 500 W, 30% amplitude) for 30 min.
Exfoliationof graphite oxide to GO was achieved by ultrasonication of the dispersion using a Brandson DigitalSonifier (S450D, 500 W, 30% amplitude) for 30 min.