Lookup NU author(s): Dr Elif Caliskan Salihi,
Professor Lidija Siller
This work is licensed under a Creative Commons Attribution 4.0 International License (CC BY 4.0).
In this paper a one pot and easy-to-handle method at room temperature without additional chemicals for the modification of graphene oxide with surfactant is found. Removal of Nickel (II) ions from aqueous solutions by graphene oxide (GO) and surfactant (sodium dodecyl sulfate) 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 mg/g to 55.16 mg/g found by Langmuir model) due to the functionalization of the surface by sodium dodecyl sulphate. 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.
Author(s): Caliskan Salihi E, Wang J, Coleman DJL, Siller L
Publication type: Article
Publication status: Published
Journal: Separation Science and Technology
Online publication date: 22/03/2016
Acceptance date: 01/03/2016
Date deposited: 29/02/2016
ISSN (print): 0149-6395
ISSN (electronic): 1520-5754
Publisher: Taylor & Francis
Data Source Location: http://dx.doi.org/10.17634/135315-3
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