▎ 摘　　要

A facile and green method was proposed to fabricate three-dimensional reduced graphene oxide (GRGO) aerogel with the assistance of gelatin. The reduction of graphene oxide to graphene by gelatin was confirmed by Fourier transform infrared (FTIR) spectra and Raman spectroscopy. Microstructure of obtained aerogel was determined by Scanning electron microscopy (SEM). Moreover, the GRGO aerogel demonstrated superior adsorption performances towards rhodamine B (RB), methylene blue (MB) and crystal violet (CV). Meanwhile, the factors influencing the adsorption capacity of GRGO for RB, such as initial concentration, adsorbent dosage, contacting time and temperature were investigated systematically. The adsorption kinetics and adsorption isotherms of RB were studied in details. The adsorption isotherm was found to fit the Langmuir model with a monolayer adsorption capacity of 280.8 mg g(-1). (C) 2017 Elsevier B.V. All rights reserved.