Change search
ReferencesLink to record
Permanent link

Direct link
Benzenecarboxylate surface complexation at the goethite (α-FEOOH)/water interface. III. The influence of particle surface area and the significance of modeling parameters
Umeå University, Faculty of Science and Technology, Chemistry.
Umeå University, Faculty of Science and Technology, Chemistry.
Umeå University, Faculty of Science and Technology, Chemistry.
2000 (English)In: Journal of colloid and interface science, Vol. 227, no 1, 132-40 p.Article in journal (Refereed) Published
Abstract [en]

A surface complexation model describing the adsorption of three benzenecarboxylates (phthalate, trimellitate, and pyromellitate) on goethite (α-FeOOH) was calibrated on data using goethite particles of 37 and 43 m[2]/g surface area. The models predict potentiometric titration and batch adsorption data with the multisite complexation model coupled with the three-plane model to account for surface electrostatics. The modeling parameters were found to be similar to those calibrated on benzenecarboxylate adsorption data on goethite particles of 90 m[2]/g (Boily et al. Geochim. Cosmochim. Acta, in press). The significance of the benzenecarboxylate-dependent values of the modeling parameters is also discussed. The values of the capacitances of the inner- and outer-Helmholtz planes were shown to be important modeling parameters to model the benzenecarboxylate-dependent slopes of the adsorption edges. It was shown that the larger the charge of the ligand, the larger the capacitance of the outer-Helmholtz plane.

Place, publisher, year, edition, pages
2000. Vol. 227, no 1, 132-40 p.
Keyword [en]
Experimental study, Liquid solid adsorption, Surface complex, Goethite, Benzene derivatives, Modeling, Surface area, Structure effect, Carboxylate
URN: urn:nbn:se:umu:diva-8970OAI: diva2:148641
Available from: 2008-02-25 Created: 2008-02-25 Last updated: 2009-11-24Bibliographically approved

Open Access in DiVA

No full text

Other links

Search in DiVA

By author/editor
Boily, Jean-FrancoisPersson, PerSjöberg, Staffan
By organisation

Search outside of DiVA

GoogleGoogle Scholar
The number of downloads is the sum of all downloads of full texts. It may include eg previous versions that are now no longer available

Total: 236 hits
ReferencesLink to record
Permanent link

Direct link