Abstract
Multi-walled carbon nanotubes (MWCNTs) were oxidized for removal of indigo carmine (IC) from aqueous solution through batch experiment. The effects of contact time, temperature, pH and dosage of adsorbent on the removal of indigo carmine were investigated. The optimal pH for maximum dye adsorption was found to be 5.0. The adsorption kinetic of IC dye onto oxidized MWCNTs fitted the pseudo-second-order model and the equilibrium experimental results showed good correlation with Freundlich model. The maximum adsorption capacity for indigo carmine was obtained as 71.42 mg g−1.
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Acknowledgements
The authors are grateful to the Hamedan Branch, Islamic Azad University for providing facilities to conduct and complete this study.
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Sobhanardakani, S., Ghoochian, M., Jameh-Bozorghi, S. et al. Assessing of Removal Efficiency of Indigo Carmine from Wastewater Using MWCNTs. Iran J Sci Technol Trans Sci 41, 1047–1053 (2017). https://doi.org/10.1007/s40995-017-0312-z
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DOI: https://doi.org/10.1007/s40995-017-0312-z