Jump to main content
Jump to site search

Issue 11, 2020
Previous Article Next Article

Efficient dye removal and separation based on graphene oxide nanomaterials

Author affiliations

Abstract

In the present study, graphene oxide (GO), fluorinated graphene oxide (F-GO) and interconnected reduced graphene oxide (IC-rGO) were synthesized and systemically investigated for the removal of two cationic dyes, methylene blue (MB) and rhodamine B (RhB), from aqueous solution. The surface morphology of the adsorbents was characterized by scanning electron microscopy (SEM) and transmission electron microscopy (TEM). The effect of the initial concentrations of MB and RhB was examined, and the experimental data was fitted using the Langmuir and Freundlich isotherm models. The Langmuir model was shown to be the better model; and the adsorption of MB and RhB was found to be most favorable on GO with a maximum adsorption capacity of 403.3 mg g−1 and 686.6 mg g−1. The adsorption kinetics study was also conducted and the resulting data fitted well with a pseudo-second-order kinetic model. The chemical compositions of the adsorbents before and after adsorption were analyzed using FT-IR and Raman spectroscopy to further understand the interaction between the dye molecules and adsorbents. Our study has demonstrated that GO is a very promising adsorbent for wastewater treatment and that GO can effectively separate cationic species from anionic compounds.

Graphical abstract: Efficient dye removal and separation based on graphene oxide nanomaterials

Back to tab navigation

Supplementary files

Article information


Submitted
27 Nov 2019
Accepted
15 Feb 2020
First published
24 Feb 2020

New J. Chem., 2020,44, 4519-4528
Article type
Paper

Efficient dye removal and separation based on graphene oxide nanomaterials

B. Mao, B. Sidhureddy, A. R. Thiruppathi, P. C. Wood and A. Chen, New J. Chem., 2020, 44, 4519 DOI: 10.1039/C9NJ05895H

To request permission to reproduce material from this article, please go to the Copyright Clearance Center request page.

If you are an author contributing to an RSC publication, you do not need to request permission provided correct acknowledgement is given.

If you are the author of this article, you do not need to request permission to reproduce figures and diagrams provided correct acknowledgement is given. If you want to reproduce the whole article in a third-party publication (excluding your thesis/dissertation for which permission is not required) please go to the Copyright Clearance Center request page.

Read more about how to correctly acknowledge RSC content.


Social activity

Search articles by author

Spotlight

Advertisements