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PublicationAdsorption
Year2011
Volume17
Pages483-488
International

Phenol adsorption from water solutions over microporous and mesoporous carbon surfaces: a real time kinetic study

Authors:Eva Castillejos López, Inmaculada Rodríguez Ramos, Maria Soria Sanchez , Vicenta Muñoz , Antonio Guerrero Ruiz
Groups of research:Group for Molecular Design of Heterogeneous Catalysts
This study illustrates the effect of the adsorbent porosity (activated carbon and high surface area graphite) on the phenol adsorption kinetics. We have developed an experimental system where on line analysis of the solution is carried out by an optic fiber probe introduced in the water solution and directly connected with the UV spectrometer. This experimental setup permits to be more precise in determining kinetic parameters, considering that measurements are taken each 20 seconds. Our results show that the choice of the particle diameter of the adsorbent is critical in the control of the adsorption process kinetic, while the porosity of the carbon materials appears to be less relevant.
Keywords:ADSORPTION, Activated carbon, Graphite, Kinetic, Phenol
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