Tungstate sorption mechanisms on boehmite: Systematic uptake studies and X-ray absorption spectroscopy analysis

Tungstate sorption mechanisms on boehmite: Systematic uptake studies and X-ray absorption... Journal of Colloid and Interface Science 461 (2016) 249–260 Contents lists available at ScienceDirect Journal of Colloid and Interface Science journal homepage: www.elsevier.com/locate/jcis Tungstate sorption mechanisms on boehmite: Systematic uptake studies and X-ray absorption spectroscopy analysis a,1 b,⇑ Hyuck Hur , Richard J. Reeder Department of Chemistry, Stony Brook University, Stony Brook, NY 11794, USA Department of Geosciences, Stony Brook University, Stony Brook, NY 11794, USA graphical a bstract article i nfo abstract Article history: Mechanisms of tungstate sorption on the mineral boehmite (c-AlOOH) were studied using batch uptake Received 20 March 2015 experiments and X-ray absorption spectroscopy. Batch uptake experiments over the pH range 4–8 and Revised 1 September 2015 [W] = 50–2000 lM show typical oxyanion behavior, and isotherm experiments reveal continued uptake Accepted 2 September 2015 with increasing tungstate concentration without any clear uptake maximum. Desorption experiments Available online 5 September 2015 showed that sorption is irreversible at pH 4 and partly reversible at pH 8. Tungsten L - and L -edge 1 3 XANES spectroscopy indicates that all sorbed tungstates are octahedrally coordinated, even though the Keywords: dominant solution species at pH 8 is a tetrahedral monotungstate. Tungsten L -edge EXAFS analysis Tungstate shows that http://www.deepdyve.com/assets/images/DeepDyve-Logo-lg.png Journal of Colloid and Interface Science Elsevier

Tungstate sorption mechanisms on boehmite: Systematic uptake studies and X-ray absorption spectroscopy analysis

Loading next page...
 
/lp/elsevier/tungstate-sorption-mechanisms-on-boehmite-systematic-uptake-studies-iT6xcx00nc
Publisher
Elsevier
Copyright
Copyright © 2015 Elsevier Inc.
ISSN
0021-9797
eISSN
1095-7103
D.O.I.
10.1016/j.jcis.2015.09.011
Publisher site
See Article on Publisher Site

Abstract

Journal of Colloid and Interface Science 461 (2016) 249–260 Contents lists available at ScienceDirect Journal of Colloid and Interface Science journal homepage: www.elsevier.com/locate/jcis Tungstate sorption mechanisms on boehmite: Systematic uptake studies and X-ray absorption spectroscopy analysis a,1 b,⇑ Hyuck Hur , Richard J. Reeder Department of Chemistry, Stony Brook University, Stony Brook, NY 11794, USA Department of Geosciences, Stony Brook University, Stony Brook, NY 11794, USA graphical a bstract article i nfo abstract Article history: Mechanisms of tungstate sorption on the mineral boehmite (c-AlOOH) were studied using batch uptake Received 20 March 2015 experiments and X-ray absorption spectroscopy. Batch uptake experiments over the pH range 4–8 and Revised 1 September 2015 [W] = 50–2000 lM show typical oxyanion behavior, and isotherm experiments reveal continued uptake Accepted 2 September 2015 with increasing tungstate concentration without any clear uptake maximum. Desorption experiments Available online 5 September 2015 showed that sorption is irreversible at pH 4 and partly reversible at pH 8. Tungsten L - and L -edge 1 3 XANES spectroscopy indicates that all sorbed tungstates are octahedrally coordinated, even though the Keywords: dominant solution species at pH 8 is a tetrahedral monotungstate. Tungsten L -edge EXAFS analysis Tungstate shows that

Journal

Journal of Colloid and Interface ScienceElsevier

Published: Jan 1, 2016

References

You’re reading a free preview. Subscribe to read the entire article.


DeepDyve is your
personal research library

It’s your single place to instantly
discover and read the research
that matters to you.

Enjoy affordable access to
over 12 million articles from more than
10,000 peer-reviewed journals.

All for just $49/month

Explore the DeepDyve Library

Unlimited reading

Read as many articles as you need. Full articles with original layout, charts and figures. Read online, from anywhere.

Stay up to date

Keep up with your field with Personalized Recommendations and Follow Journals to get automatic updates.

Organize your research

It’s easy to organize your research with our built-in tools.

Your journals are on DeepDyve

Read from thousands of the leading scholarly journals from SpringerNature, Elsevier, Wiley-Blackwell, Oxford University Press and more.

All the latest content is available, no embargo periods.

See the journals in your area

DeepDyve Freelancer

DeepDyve Pro

Price
FREE
$49/month

$360/year
Save searches from Google Scholar, PubMed
Create lists to organize your research
Export lists, citations
Read DeepDyve articles
Abstract access only
Unlimited access to over
18 million full-text articles
Print
20 pages/month
PDF Discount
20% off