Silicalite-1, an adsorbent for 2-, 3-, and 4-chlorophenols

The adsorption of the three chlorophenol isomers, ortho, meta and para, by silicalite-1 has been studied at 30 °C, below the solubility (at the same temperature) in water. Large differences, up to 30 times, have been observed between the adsorption of the para- vs. the ortho-isomer. The difference o...

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Bibliographic Details
Published in:Water science and technology 2012-01, Vol.66 (2), p.247-253
Main Authors: Sánchez-Flores, N A, Solache, M, Olguín, M T, Legaspe, J, Pacheco-Malagón, G, Saniger, J M, Martinez, E, Bulbulian, S, Fripiat, J J
Format: Article
Language:English
Subjects:
Adsorbents
Adsorption
Chlorophenol
Chlorophenols - chemistry
Isomers
Organizations
p-Chlorophenol
Silicalite
Silicates - chemistry
Water temperature
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Summary:The adsorption of the three chlorophenol isomers, ortho, meta and para, by silicalite-1 has been studied at 30 °C, below the solubility (at the same temperature) in water. Large differences, up to 30 times, have been observed between the adsorption of the para- vs. the ortho-isomer. The difference of behavior observed between the isomers is assigned to the tendency to self-organization of the para-isomer. It seems probable that the adsorption sites are at the intersection channels. From a technical point of view, silicalite-1 seems a competitive adsorbent for p-chlorophenol.
ISSN:0273-1223
1996-9732
DOI:10.2166/wst.2012.073