▎ 摘　　要

The paper presents a simple, efficient and high-quality method for preparing few-layer graphene during the hydrothermal synthesis of magnesium silicate hydroxide (MSH) using bulk graphite as initial material. This type of graphene was characterized by high-resolution transmission electron microscope (HRTEM), X-ray diffraction (XRD), Raman spectroscopy, and X-ray photoelectron spectroscopy (XPS). Results show that the graphene obtained using this method is coated on the outer surface of MSH nanoparticles and stacked by 8-12 single graphene sheets with an approximate interlayer spacing of 0.34 nm. The graphene-MSH interface connects via chemical bonds of C-OH, C=O and C-H that formed between carbon atoms in graphene and active oxygen atoms and/or hydroxyl groups in MSH. This simple solution-phase approach offers a greater possibility in the large-yield, environmental and lattice-perfect produce of graphene using only bulk graphite as the raw material.