Activated carbon prepared from yerba mate used as a novel adsorbent for removal of tannery dye from aqueous solution

Environmental Technology
Bruno LinharesGabriela Carvalho Collazzo

Abstract

Activated carbon prepared from yerba mate (Ilex paraguariensis) was used as adsorbent for the removal of tannery dye from aqueous solution. The activated carbon was characterized, and it showed a mesoporous texture, with surface area of 537.4 m2 g(-1). The initial dye concentration, contact time and pH influenced the adsorption capacity. The equilibrium data were in good agreement with both Langmuir and Freundlich isotherms. The adsorption kinetics of the tannery dye on activated carbon prepared from yerba mate followed a pseudo-second-order model. The adsorption process was found to be controlled by both external mass-transfer and intraparticle diffusion, but the external diffusion was the dominating process. This work highlights the potential application of activated carbon produced from yerba mate in the field of adsorption.

References

Mar 7, 2009·Journal of Environmental Management·V K Gupta, Suhas
Jan 12, 2010·Journal of Environmental Management·Rais Ahmad, Rajeev Kumar
Nov 7, 2012·Water Science and Technology : a Journal of the International Association on Water Pollution Research·Edson Luiz FolettoGabriela Carvalho Collazzo

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Citations

Mar 11, 2017·Environmental Science and Pollution Research International·Vitória Segabinazzi FolettoGuilherme Luiz Dotto
Jan 7, 2021·Environmental Science and Pollution Research International·Jordana GeorginGuilherme L Dotto

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Methods Mentioned

BETA
equilibrium studies
scanning electron microscopy

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