Inducing dye-selectivity in graphene oxide for cationic dye separation applications

被引：28

作者：

Ranjan, Pranay ^{[1
]}

Verma, Priyanshu ^{[2
]}

Agrawal, Shweta ^{[3
]}

Rao, T. Rajagopala ^{[3
]}

Samanta, Sujoy Kumar ^{[2
]}

Thakur, Ajay D. ^{[1
]}

机构：

[1] Indian Inst Technol Patna, Dept Phys, Bihta 801106, India

[2] Indian Inst Technol Patna, Dept Chem & Biochem Engn, Bihta 801106, India

[3] Indian Inst Technol Patna, Dept Chem, Bihta 801106, India

来源：

MATERIALS CHEMISTRY AND PHYSICS | 2019年 / 226卷

关键词：

Graphene oxide (GO); Cationic dye adsorption; Selectivity; DFT; Adsorption isotherm; DENSITY FUNCTIONALS; METHYLENE-BLUE; ADSORPTION; CARBON; REMOVAL; NANOCOMPOSITE; DEGRADATION; REDUCTION; M06;

D O I：

10.1016/j.matchemphys.2019.01.047

中图分类号：

T [工业技术];

学科分类号：

08 ;

摘要：

Adsorption property of graphene oxide (GO) towards cationic dyes such as methylene blue (MB) and rhodamine B (RhB) has been investigated experimentally. GO structure used in our study is decorated with experimentally observed oxygen functional groups (OFGs). Fast and effective adsorption of MB with GO in single and binary solute solution has been observed experimentally. In support of our experimental data and to understand the interaction of adsorbent (GO) and dye, density functional theory (DFT) calculation has been used for calculating individual binding energy of GO, GO/dye in aqueous medium. Further, study on dye interaction with GO reveals that adsorption was facilitated by presence of oxygen functional group through electrostatic interactions.

引用

页码：350 / 355

页数：6

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