Affiliation:
1. National Research Centre, Cellulose and Paper Department, 33 El-Bohouth Str., Dokki, P.O. 12622, Giza, Egypt
Abstract
"Graphene oxide (GO) from sugar cane bagasse (SCB/F) was treated with EDTA to produce modified GO (EGO) by a
hydrothermal preparation reaction. Raman spectra showed an intensity ratio of ID/IG for SCB/F and EGO8:1
(EDTA:GO 8:1) of 0.598 and 0.391, respectively. FTIR spectra confirmed the introduction of nitrogen-containing
groups into the SCB/F backbone. SEM analysis demonstrated the porosity character for the sample. The TGA/DTA
results implied the EGO8:1 sample was less thermally stable than SCB/F. The Ni2+ adsorption study revealed a steadily
increasing adsorption of Ni2+ until 45 min, with no noticeable increase in adsorption after that. The results of kinetic
modeling, adsorption isotherms, and thermodynamic parameters showed that the pseudo-second-order models gave a
better fit to the adsorption data of the SCB/F and EGO samples. Also, the adsorption data fitted the Langmuir model
best, and the negative values of G indicated that the sorption process was spontaneous."
Publisher
Institutul de Chimie Macromoleculara Petru Poni
Subject
Materials Chemistry,Organic Chemistry
Cited by
10 articles.
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