▎ 摘　　要

Transparent hydrophobic coatings were prepared with graphene fluoride (GF), which was fabricated by a mild and controllable approach of liquid-phase ultrasonic exfoliation of graphite fluoride (GiF) with a selected solvent of ethanol. The structure of the resulting GF sheets with nanoscale thickness was confirmed by transmission electron microscope (TEM), atomic force microscopy (AFM), X-ray diffraction and Raman spectroscopy. Fourier transform infrared spectroscopy and energy dispersive analysis show that C-F bonds from GiF are well preserved in the resulting GF by the method of liquid-phase ultrasonic exfoliation, which are responsible for its excellent hydrophobicity and light transmission. The obtained GF coating has a contact angle of 123 and light transmittance of up to 92% when GF mass density is 0.6 mg cm(-2). Water erosion experiments and ultraviolet aging tests suggest these coatings may possess extended service life outdoors. (C) 2013 Elsevier Ltd. All rights reserved.