Title

Tailoring Microstructure And Properties Of Hierarchical Aluminum Metal Matrix Composites Through Friction Stir Processing

Keywords

Adsorption; Filtrasorb 400 activated carbon; Imazamox herbicide; Langmuir-Freundlich equation

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. © Springer Science+Business Media, LLC 2011.

Publication Date

2-1-2012

Publication Title

JOM

Volume

64

Issue

1

Number of Pages

234-238

Document Type

Article

Personal Identifier

scopus

DOI Link

https://doi.org/10.1007/s11837-012-0249-9

Socpus ID

84862147680 (Scopus)

Source API URL

https://api.elsevier.com/content/abstract/scopus_id/84862147680

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