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Adsorption of Phenol

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Grażyna Gryglewicz – One of the best experts on this subject based on the ideXlab platform.

  • Influence of pore size distribution on the Adsorption of Phenol on PET-based activated carbons.
    Journal of colloid and interface science, 2016
    Co-Authors: Ewa Lorenc-grabowska, Maria A. Diez, Grażyna Gryglewicz

    Abstract:

    The role of pore size distribution in the Adsorption of Phenol in aqueous solutions on polyethylene terephthalate (PET)-based activated carbons (ACs) has been analyzed. The ACs were prepared from PET and mixtures of PET with coal-tar pitch (CTP) by means of carbonization and subsequent steam and carbon dioxide activation at 850 and 950 °C, respectively. The resultant ACs were characterized on the basis of similarities in their surface chemical features and differences in their micropore size distributions. The Adsorption of Phenol was carried out in static conditions at ambient temperature. The pseudo-second order kinetic model and Langmuir model were found to fit the experimental data very well. The different Adsorption capacities of the ACs towards Phenol were attributed to differences in their micropore size distributions. Adsorption capacity was favoured by the volume of pores with a size smaller than 1.4 nm; but restricted by pores smaller than 0.8 nm.

J Przepiórski – One of the best experts on this subject based on the ideXlab platform.

  • Enhanced Adsorption of Phenol from water by ammonia-treated activated carbon.
    Journal of hazardous materials, 2006
    Co-Authors: J Przepiórski

    Abstract:

    Influence of treatment with gaseous ammonia on Adsorption properties toward Phenol from water was examined for commercially available CWZ-series activated carbons. The treatment was carried out at elevated temperatures ranged from 400 degrees C to 800 degrees C for 2 h. In comparison with untreated material, activated carbons modified with ammonia demonstrated enhanced Adsorption of Phenol from water. The enhancement depended on the treatment temperature and porous structure of studied activated carbons. Fourier transform infrared spectroscopy (FTIR) measurements confirmed presence of N-containing species in ammonia-treated activated carbons. Optimal conditions of the modification with ammonia were determined. Influence of the N-containing groups and porous structure of activated carbons on Adsorption of Phenol is discussed.

  • Enhanced Adsorption of Phenol from water by ammonia-treated activated carbon
    Journal of Hazardous Materials, 2006
    Co-Authors: J Przepiórski

    Abstract:

    Abstract Influence of treatment with gaseous ammonia on Adsorption properties toward Phenol from water was examined for commercially available CWZ-series activated carbons. The treatment was carried out at elevated temperatures ranged from 400 °C to 800 °C for 2 h. In comparison with untreated material, activated carbons modified with ammonia demonstrated enhanced Adsorption of Phenol from water. The enhancement depended on the treatment temperature and porous structure of studied activated carbons. Fourier transform infrared spectroscopy (FTIR) measurements confirmed presence of N-containing species in ammonia-treated activated carbons. Optimal conditions of the modification with ammonia were determined. Influence of the N-containing groups and porous structure of activated carbons on Adsorption of Phenol is discussed.

Ewa Lorenc-grabowska – One of the best experts on this subject based on the ideXlab platform.

  • Influence of pore size distribution on the Adsorption of Phenol on PET-based activated carbons.
    Journal of colloid and interface science, 2016
    Co-Authors: Ewa Lorenc-grabowska, Maria A. Diez, Grażyna Gryglewicz

    Abstract:

    The role of pore size distribution in the Adsorption of Phenol in aqueous solutions on polyethylene terephthalate (PET)-based activated carbons (ACs) has been analyzed. The ACs were prepared from PET and mixtures of PET with coal-tar pitch (CTP) by means of carbonization and subsequent steam and carbon dioxide activation at 850 and 950 °C, respectively. The resultant ACs were characterized on the basis of similarities in their surface chemical features and differences in their micropore size distributions. The Adsorption of Phenol was carried out in static conditions at ambient temperature. The pseudo-second order kinetic model and Langmuir model were found to fit the experimental data very well. The different Adsorption capacities of the ACs towards Phenol were attributed to differences in their micropore size distributions. Adsorption capacity was favoured by the volume of pores with a size smaller than 1.4 nm; but restricted by pores smaller than 0.8 nm.