Enhanced removal of nickel(II) ions from aqueous solutions by SDS-functionalized graphene oxide

被引：55

作者：

Salihi, Elif Caliskan ^{[1
,2
]}

Wang, Jiabin ^{[1
]}

Coleman, Daniel J. L. ^{[3
]}

Siller, Lidija ^{[1
]}

机构：

[1] Newcastle Univ, Sch Chem Engn & Adv Mat, Newcastle Upon Tyne NE1 7RU, Tyne & Wear, England

[2] Marmara Univ, Dept Basic Pharmaceut Sci, Fac Pharm, Istanbul, Turkey

[3] Newcastle Univ, Northern Inst Canc Res, Sch Med, Newcastle Upon Tyne NE1 7RU, Tyne & Wear, England

来源：

SEPARATION SCIENCE AND TECHNOLOGY | 2016年 / 51卷 / 08期

基金：

英国工程与自然科学研究理事会;

关键词：

Adsorption; graphene; nanomaterials; CATALYZE REVERSIBLE HYDRATION; MINERALIZATION CARBON CAPTURE; HEAVY-METAL IONS; WASTE-WATER; ACTIVATED CARBONS; ADSORPTION; NANOTUBES; EQUILIBRIUM; SURFACES; NANOPARTICLES;

D O I：

10.1080/01496395.2016.1162172

中图分类号：

O6 [化学];

学科分类号：

0703 ;

摘要：

In this paper, a one-pot and easy-to-handle method at room temperature without additional chemicals for the modification of graphene oxide (GO) with surfactant is found. Removal of nickel (II) ions from aqueous solutions by GO and surfactant (sodium dodecyl sulphate) modified graphene oxide (SDS-GO) was studied spectrophotometrically at room temperature as a function of time, initial concentration and pH. Adsorption capacity of the adsorbent was increased dramatically (from 20.19 to 55.16 mg/g found by Langmuir model) due to the functionalization of the surface by SDS. The driving force of the adsorption of Ni(II) ions is electrostatic attraction and Ni(II) ions adsorbed on the GO surface chemically besides ion exchange.

引用

页码：1317 / 1327

页数：11

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