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 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.
Universidad Nacional Autónoma de México, México. norma.sanchez@ccadet.unam.mx
N A
NA
Sánchez-Flores
M
M
Solache
M T
MT
Olguín
J
J
Legaspe
G
G
Pacheco-Malagón
J M
JM
Saniger
E
E
Martinez
S
S
Bulbulian
J J
JJ
Fripiat
D000327:Adsorption; D002733:Chlorophenols / Q000737:chemistry*; D017640:Silicates / Q000737:chemistry*
D002733:Chlorophenols; D017640:Silicates