▎ 摘　　要

In this work, active carbon nanofibers (ACFs) and reduced graphite oxidate (RGO) nanocomposites were facilely synthesized and proposed as capacitive deionization (CDI) electrodes for removal of different salty ions. According to this study, the dosage of ACFs has a great effect on the CDI performance of these electrode materials. Cyclic voltammetry results illustrated that sample RGO-ACF(20) (RGO with 20 wt% ACFs) showed the best CDI performance among the all RGO-ACFx samples. The electro-adsorptive capacity of RGO-ACF(20) electrode was 2.99 mg/g with electrical voltage of 2.0 V in about 20 min. Furthermore, the electrosorption of salty ions onto RGO-ACFx follows the Langmuir isotherm, implying the monolayer adsorption. (C) 2017 Taiwan Institute of Chemical Engineers. Published by Elsevier B.V. All rights reserved.