umu.sePublications
Change search
CiteExportLink to record
Permanent link

Direct link
Cite
Citation style
  • apa
  • ieee
  • modern-language-association-8th-edition
  • vancouver
  • Other style
More styles
Language
  • de-DE
  • en-GB
  • en-US
  • fi-FI
  • nn-NO
  • nn-NB
  • sv-SE
  • Other locale
More languages
Output format
  • html
  • text
  • asciidoc
  • rtf
Surface charge of silica determined using X-ray photoelectron spectroscopy
Umeå University, Faculty of Science and Technology, Chemistry.
2005 (English)In: Colloids and Surfaces A: Physicochemical and Engineering Aspects, Vol. 252, no 2-3, 213-219 p.Article in journal (Refereed) Published
Abstract [en]

Here an approach to determine absolute surface charge densities of powder solid samples in an inert electrolyte solution using X-ray photoelectron spectroscopy (XPS) is presented. The surface charge due to the potential determining ions was obtained by determining the surface densities, using XPS, of the counterions and co-ions that were taken up by the solid from an electrolyte solution.

The approach is demonstrated using results for dispersions consisted of SiO2 colloids in 20 mM NaCl and 100 mM KCl electrolyte solutions with a pH between 9 and 2. The work has shown that the surface charge density determined by XPS is in good agreement with potentiometric titration experiments in the pH interval investigated, where the former technique may provide constraints for determining unambiguously the absolute surface charge density.

Place, publisher, year, edition, pages
2005. Vol. 252, no 2-3, 213-219 p.
Keyword [en]
Surface charge, Silica, Electrolyte, XPS, Titration
Identifiers
URN: urn:nbn:se:umu:diva-14844DOI: doi:10.1016/j.colsurfa.2004.10.085OAI: oai:DiVA.org:umu-14844DiVA: diva2:154516
Available from: 2007-06-19 Created: 2007-06-19 Last updated: 2011-01-12Bibliographically approved

Open Access in DiVA

No full text

Other links

Publisher's full text
By organisation
Chemistry

Search outside of DiVA

GoogleGoogle Scholar

doi
urn-nbn

Altmetric score

doi
urn-nbn
Total: 35 hits
CiteExportLink to record
Permanent link

Direct link
Cite
Citation style
  • apa
  • ieee
  • modern-language-association-8th-edition
  • vancouver
  • Other style
More styles
Language
  • de-DE
  • en-GB
  • en-US
  • fi-FI
  • nn-NO
  • nn-NB
  • sv-SE
  • Other locale
More languages
Output format
  • html
  • text
  • asciidoc
  • rtf