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Investigation of different kinetic models in adsorption process of benzene and toluene by CuO nanoadsorbent

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Abstract

Various studies have been defined on contaminants removal from soil, recently. This reflects the attention of researchers to environmental problems. The CuO nanoadsorbent has been used in this research. In this work, the effect of effective variables such as pollutants initial concentration, contact time and pH on adsorption is investigated, experimentally. Results show that removal of benzene and toluene is maximum at concentrations 6.3 and 6.9, respectively. Results show that maximum adsorption of benzene and toluene which occurs at pH is 9.7 and 5.6, respectively. This research shows the optimum contact time is 90 min. Results show that adsorption is a reversible process and follows ion exchange mechanism. In addition, this study show that adsorption equilibrium data of benzene and toluene follow quadratic kinetic model and intra-particle diffusion model, respectively.

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Authors and Affiliations

  1. Department of Chemical Engineering, Firoozabad Branch, Islamic Azad University, Firoozabad, Iran

    Farshad Farahbod

  2. Department of Environmental Engineering, University of Tehran, Tehran, Iran

    Hadi Tarighat

  3. Department of Petroleum Engineering, Omidieh Branch, Islamic Azad University, Omidieh, Iran

    Peyman Boustani

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  1. Farshad Farahbod
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  2. Hadi Tarighat
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  3. Peyman Boustani
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Correspondence to Farshad Farahbod.

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Farahbod, F., Tarighat, H. & Boustani, P. Investigation of different kinetic models in adsorption process of benzene and toluene by CuO nanoadsorbent. Nanotechnol. Environ. Eng. 8, 753–761 (2023). https://doi.org/10.1007/s41204-023-00326-9

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  • DOI: https://doi.org/10.1007/s41204-023-00326-9

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