Getting graphite nano-sheets with different sizes by choosing parent graphite: Ultrasonication assisted preparation

In this work, a simple and effective method for preparing graphite nano-sheet (GNS) was investigated. The size choosing of the parent graphite is important to obtain smaller size of GNSs diameter or thickness with the ultrasonication treatment. The ultrasonication treating parameter was confirmed under the optimal preparing condition,. The microstructure was characterized with scanning electron microscopy (SEM), high resolution transmission electron microscopy (HTEM). It is The experimental results show that the GNS size decreases decreased sharply at the high power factor stage of ultrasonication and then the decrement trend was slow down with the decreasing power factor of ultrasonication treatment. It is employed that choosing smaller size of parent graphite (>200-mesh) can obtain smaller size GNSs with the diameter value of (<10μm) and thickness value of (∼4nm).