Electrosorption behavior of graphene in NaCl solutions

被引：357

作者：

Li, Haibo ^{[1
]}

Lu, Ting ^{[1
]}

Pan, Likun ^{[1
]}

Zhang, Yanping ^{[1
]}

Sun, Zhuo ^{[1
]}

机构：

[1] E China Normal Univ, Dept Phys, Engn Res Ctr Nanophoton & Adv Instrument, Minist Educ, Shanghai 200062, Peoples R China

来源：

JOURNAL OF MATERIALS CHEMISTRY | 2009年 / 19卷 / 37期

关键词：

ACTIVATED CARBON; GRAPHITE OXIDE; CAPACITIVE DEIONIZATION; AQUEOUS-SOLUTIONS; ELECTRODES; ADSORPTION; SHEETS; DESALINATION; DISPERSIONS; NANOTUBES;

D O I：

10.1039/b907703k

中图分类号：

O64 [物理化学（理论化学）、化学物理学];

学科分类号：

070304 ; 081704 ;

摘要：

Graphene has been synthesized by the modified Hummers method and used as electrosorptive electrodes for capacitive deionization. Batch-mode experiments in NaCl solutions at low voltage (<= 2 V) are conducted in a continuously recycling system to investigate the electrosorption performance of graphene. The results show that the graphene exhibits a high electrosorption capacity of 1.85 mg/g. The ion sorption follows a Freundlich isotherm, indicating monolayer adsorption. And the electrosorption of NaCl onto graphene electrodes is driven by a physisorption process by taking into account the thermodynamic parameters.

引用

页码：6773 / 6779

页数：7

共 32 条

[11] PREPARATION OF GRAPHITIC OXIDE [J].