Title
Adsorption of Imazamox herbicide onto Filtrasorb 400 activated carbon
Abbreviated Journal Title
J. Porous Mat.
Keywords
Filtrasorb 400 activated carbon; Imazamox herbicide; Adsorption; Langmuir-Freundlich equation; IONIZATION MASS-SPECTROMETRY; Chemistry, Applied; Chemistry, Physical; Materials Science, ; Multidisciplinary
Abstract
Imazamox is an imidazolinone herbicide, a new class of pesticides, which can exist as cationic, anionic or neutral species in water. The adsorption isotherms of Imazamox onto Filtrasorb 400 (F400) activated carbon were determined varying the pH and the ionic strength of the aqueous medium. The results show that ionic strength has no significant effect on Imazamox uptake, contrary to pH, and that F400 has a high affinity for Imazamox. Moreover, it is found that Imazamox adsorbs onto F400 as its neutral form. The best fit of the experimental points is obtained with the Langmuir-Freundlich model, consistent with surface site heterogeneity. Finally, calculating Langmuir-Freundlich isotherms for various constant pH values, it is shown that the two plateaus observed in the experimental isotherms obtained at free pH are due to the variation of the pH along the isotherms.
Journal Title
Journal of Porous Materials
Volume
19
Issue/Number
1
Publication Date
1-1-2012
Document Type
Article
Language
English
First Page
79
Last Page
86
WOS Identifier
ISSN
1380-2224
Recommended Citation
"Adsorption of Imazamox herbicide onto Filtrasorb 400 activated carbon" (2012). Faculty Bibliography 2010s. 3048.
https://stars.library.ucf.edu/facultybib2010/3048
Comments
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