CaltechAUTHORS
  A Caltech Library Service

Contrasting Sorption Behavior of Arsenic (III) and Arsenic(V) in Suspensions of Iron and Aluminum Oxyhydroxides

Hering, Janet G. and Dixit, Suvasis (2005) Contrasting Sorption Behavior of Arsenic (III) and Arsenic(V) in Suspensions of Iron and Aluminum Oxyhydroxides. In: Advances in Arsenic Research. ACS Symposium Series. No.915. American Chemical Society , Washington, DC, pp. 8-24. ISBN 9780841239135. https://resolver.caltech.edu/CaltechAUTHORS:20170206-073342321

Full text is not posted in this repository. Consult Related URLs below.

Use this Persistent URL to link to this item: https://resolver.caltech.edu/CaltechAUTHORS:20170206-073342321

Abstract

United Kingdom It has been widely observed that the sorption of arsenic (As) as As(III) and As(V) on iron (Fe) oxyhydroxides is comparable as is the sorption of As(V) on Fe and aluminum (Al) oxyhydroxides. However, quite different sorption behavior has been observed for As(III) on Fe and Al oxyhydroxides. Here, surface complexation modeling is used to show that recent reports of As(III) sorption onto Al oxyhydroxides are consistent with previous observations of negligible sorption under conditions relevant to water treatment. This modeling exercise also demonstrates that the level of protonation of surface species is not well constrained by commonly-reported pH edges and that the possibility of distinguishing between mononuclear and binuclear surface complexes depends on the level of surface coverage. These issues complicate the integration of macroscopic sorption studies with spectroscopic studies and molecular modeling.


Item Type:Book Section
Related URLs:
URLURL TypeDescription
http://dx.doi.org/10.1021/bk-2005-0915.ch002DOIArticle
http://pubs.acs.org/doi/abs/10.1021/bk-2005-0915.ch002PublisherArticle
Additional Information:© 2005 American Chemical Society. Published in print 3 October 2005. The authors are indebted to Dr. Sabine Goldberg (U.S. Salinity Laboratory) for providing sorption data. This work was supported in part by the National Science Foundation (BES-0201888) and by the generous support of William Davidow.
Funders:
Funding AgencyGrant Number
NSFBES-0201888
William Davidow and familyUNSPECIFIED
Series Name:ACS Symposium Series
Issue or Number:915
DOI:10.1021/bk-2005-0915.ch002
Record Number:CaltechAUTHORS:20170206-073342321
Persistent URL:https://resolver.caltech.edu/CaltechAUTHORS:20170206-073342321
Official Citation:Contrasting Sorption Behavior of Arsenic (III) and Arsenic(V) in Suspensions of Iron and Aluminum Oxyhydroxides Janet G. Hering and Suvasis Dixit Advances in Arsenic Research. October 3, 2005 , 8-24 DOI:10.1021/bk-2005-0915.ch002
Usage Policy:No commercial reproduction, distribution, display or performance rights in this work are provided.
ID Code:74055
Collection:CaltechAUTHORS
Deposited By: Ruth Sustaita
Deposited On:06 Feb 2017 15:58
Last Modified:11 Nov 2021 05:24

Repository Staff Only: item control page