Equilibrium and Kinetic Modelling of Phenol Adsorption onto Mixtures of Tar Sands and Titania

The isotherms and kinetics of adsorption of phenol onto mixtures of physically-activated tar sands and titania were studied at 298 K. Three kinetic models, i.e., pseudo-first order, pseudo-second order and intraparticle diffusion, were applied to fit the experimental data. The best fit was obtained...

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Main Author: Lua'y Zeatoun
Format: Article
Language:English
Published: SAGE Publishing 2006-12-01
Series:Adsorption Science & Technology
Online Access:https://doi.org/10.1260/026361707781421988
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author Lua'y Zeatoun
author_facet Lua'y Zeatoun
author_sort Lua'y Zeatoun
collection DOAJ
description The isotherms and kinetics of adsorption of phenol onto mixtures of physically-activated tar sands and titania were studied at 298 K. Three kinetic models, i.e., pseudo-first order, pseudo-second order and intraparticle diffusion, were applied to fit the experimental data. The best fit was obtained with the pseudo-second-order model. The kinetic parameters were determined to allow the calculation of phenol uptake as function of time. The Langmuir and Freundlich isotherms were employed to determine the adsorption capacities for different initial pH values of the solution. The effects of the particle size of the adsorbent and the initial pH of the solution on the removal of phenol were investigated.
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institution Kabale University
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spelling doaj-art-355f5b3e8d16447d8843891d9af9ba592025-01-03T01:23:10ZengSAGE PublishingAdsorption Science & Technology0263-61742048-40382006-12-012410.1260/026361707781421988Equilibrium and Kinetic Modelling of Phenol Adsorption onto Mixtures of Tar Sands and TitaniaLua'y ZeatounThe isotherms and kinetics of adsorption of phenol onto mixtures of physically-activated tar sands and titania were studied at 298 K. Three kinetic models, i.e., pseudo-first order, pseudo-second order and intraparticle diffusion, were applied to fit the experimental data. The best fit was obtained with the pseudo-second-order model. The kinetic parameters were determined to allow the calculation of phenol uptake as function of time. The Langmuir and Freundlich isotherms were employed to determine the adsorption capacities for different initial pH values of the solution. The effects of the particle size of the adsorbent and the initial pH of the solution on the removal of phenol were investigated.https://doi.org/10.1260/026361707781421988
spellingShingle Lua'y Zeatoun
Equilibrium and Kinetic Modelling of Phenol Adsorption onto Mixtures of Tar Sands and Titania
Adsorption Science & Technology
title Equilibrium and Kinetic Modelling of Phenol Adsorption onto Mixtures of Tar Sands and Titania
title_full Equilibrium and Kinetic Modelling of Phenol Adsorption onto Mixtures of Tar Sands and Titania
title_fullStr Equilibrium and Kinetic Modelling of Phenol Adsorption onto Mixtures of Tar Sands and Titania
title_full_unstemmed Equilibrium and Kinetic Modelling of Phenol Adsorption onto Mixtures of Tar Sands and Titania
title_short Equilibrium and Kinetic Modelling of Phenol Adsorption onto Mixtures of Tar Sands and Titania
title_sort equilibrium and kinetic modelling of phenol adsorption onto mixtures of tar sands and titania
url https://doi.org/10.1260/026361707781421988
work_keys_str_mv AT luayzeatoun equilibriumandkineticmodellingofphenoladsorptionontomixturesoftarsandsandtitania