Please use this identifier to cite or link to this item:
|Title:||Proton interaction in phosphate adsorption onto goethite|
OH- release stoichiometry
|Citation:||Zhong, B., Stanforth, R., Wu, S., Chen, J.P. (2007-04-01). Proton interaction in phosphate adsorption onto goethite. Journal of Colloid and Interface Science 308 (1) : 40-48. ScholarBank@NUS Repository. https://doi.org/10.1016/j.jcis.2006.12.055|
|Abstract:||The adsorption of phosphate on goethite is generally modeled by assuming a simple ligand exchange reaction with surface hydroxyl groups. This study investigates the binding forms of phosphate on goethite by evaluating the proton interaction and surface charge change during phosphate adsorption. It is found that OH- release stoichiometry increases with phosphate coverage, which suggests that different mechanisms predominate at different phosphate loadings. It demonstrates that surface binding changes from monodentate complexation to bidentate complexation with increasing surface phosphate coverage. The net OH- release accompanying this transformation is best interpreted with a 2 p Ka multisite model. © 2007 Elsevier Inc. All rights reserved.|
|Source Title:||Journal of Colloid and Interface Science|
|Appears in Collections:||Staff Publications|
Show full item record
Files in This Item:
There are no files associated with this item.
checked on Aug 15, 2018
WEB OF SCIENCETM
checked on Jul 23, 2018
checked on Jun 22, 2018
Items in DSpace are protected by copyright, with all rights reserved, unless otherwise indicated.