Kinetic Study of the Adsorption of Synthetic Dyes on Graphene Surfaces
Vol. 9 No. 4 (2014), Articles
Vol. 9 No. 4 (2014)

Kinetic Study of the Adsorption of Synthetic Dyes on Graphene Surfaces

Articles
  • Ramin Shahryari-ghoshekandi and Hamidreza Sadegh*
Ramin Shahryari-ghoshekandi and Hamidreza Sadegh*

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Keywords

Toxic dyes; Adsorption; Graphene oxide; Graphene; Synthetic dye.

How to Cite

Sadegh, H. (2021). Kinetic Study of the Adsorption of Synthetic Dyes on Graphene Surfaces. Jordan Journal of Chemistry (JJC), 9(4), 267-278. Retrieved from https://jjc.yu.edu.jo/index.php/jjc/article/view/141 (Original work published November 6, 2014)
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Abstract

Graphene (G) and Graphene oxide (GO) were employed in the present study in the
removal of two toxic cationic dyes, Basic Red 12 (BR 12) and Basic Red 46 (BR 46), from
aqueous solutions. Graphene oxide was synthesized according to the modified Hummers’
method, and characterized by XRD and FTIR. The effect of various parameters such as contact
time, solution pH, dye concentration and temperature, were studied. The kinetics and
thermodynamics of the process of dye removal were investigated. The results indicate that the
kinetics of the removal of BR 12 and BR 46 using G and GO as adsorbents follows a pseudosecond order model. G and GO exhibited high adsorption capacity for BR 12 and BR 46. The
dye removal depends thereby on the initial pH of the solution with maximum uptake occurring at
about pH=9.

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