▎ 摘 要
Graphene oxide (GO)/silicalite-1 composites (GS) with hierarchical porous structure were fabricated by grafting GO onto acid-treated silicalite-1 zeolite. The structure and physical properties of the GS composites were determined by using a series of characterization techniques. The removal of rhodamine B (RB) from aqueous solution was conducted on the GS composites. Effects of experimental conditions on the adsorption were studied. The adsorption behaviors of the GS composites were well described by Langmuir isotherm and shown to follow a pseudo-second-order reaction model. The maximum adsorption capacity of the GS composites for RB was shown to 56.55 mg/g. (C) 2017 The Korean Society of Industrial and Engineering Chemistry. Published by Elsevier B.V. All rights reserved.