Salt concentration and particle density dependence of electrophoretic mobilities of spherical colloids in aqueous suspension
- Publikationstyp:
- Zeitschriftenaufsatz
- Metadaten:
-
- Autoren
- Thomas Palberg
- Holger Reiber
- T Köller
- F Carrique
- E Ruiz-Reina
- R Piazza
- Sammlungen
- metadata
- ISSN
- 0021-9797
- Ausgabe der Veröffentlichung
- 2
- Zeitschrift
- Journal of colloid and interface science
- Schlüsselwörter
- 530 Physik
- 530 Physics
- Sprache
- eng
- Paginierung
- Seiten: 315 - 322
- Datum der Veröffentlichung
- 2007
- Datum der Datenerfassung
- 2020
- Datum, an dem der Datensatz öffentlich gemacht wurde
- 2020
- Zugang
- Public
- Titel
- Salt concentration and particle density dependence of electrophoretic mobilities of spherical colloids in aqueous suspension
- Ausgabe der Zeitschrift
- 309
Datenquelle: METADATA.UB
- Andere Metadatenquellen:
-
- Autoren
- Holger Reiber
- Tetyana Koeller
- Thomas Palberg
- Felix Carrique
- Emilio Ruiz Reina
- Roberto Piazza
- Autoren-URL
- https://www.webofscience.com/api/gateway?GWVersion=2&SrcApp=fis-test-1&SrcAuth=WosAPI&KeyUT=WOS:000245967700016&DestLinkType=FullRecord&DestApp=WOS_CPL
- DOI
- 10.1016/j.jcis.2007.01.006
- eISSN
- 1095-7103
- Externe Identifier
- Clarivate Analytics Document Solution ID: 160UL
- PubMed Identifier: 17331523
- ISSN
- 0021-9797
- Ausgabe der Veröffentlichung
- 2
- Zeitschrift
- JOURNAL OF COLLOID AND INTERFACE SCIENCE
- Schlüsselwörter
- electrophoresis
- silica particles
- SEM
- superheterodyne laser Doppler velocimetry
- electrophoretic mobility
- zeta potential
- Paginierung
- 315 - 322
- Datum der Veröffentlichung
- 2007
- Status
- Published
- Titel
- Salt concentration and particle density dependence of electrophoretic mobilities of spherical colloids in aqueous suspension
- Sub types
- Article
- Proceedings Paper
- Ausgabe der Zeitschrift
- 309
Datenquelle: Web of Science (Lite)
- Autoren
- Holger Reiber
- Tetyana Köller
- Thomas Palberg
- Felix Carrique
- Emilio Ruiz Reina
- Roberto Piazza
- DOI
- 10.1016/j.jcis.2007.01.006
- ISSN
- 0021-9797
- Ausgabe der Veröffentlichung
- 2
- Zeitschrift
- Journal of Colloid and Interface Science
- Sprache
- en
- Paginierung
- 315 - 322
- Datum der Veröffentlichung
- 2007
- Status
- Published
- Herausgeber
- Elsevier BV
- Herausgeber URL
- http://dx.doi.org/10.1016/j.jcis.2007.01.006
- Datum der Datenerfassung
- 2019
- Titel
- Salt concentration and particle density dependence of electrophoretic mobilities of spherical colloids in aqueous suspension
- Ausgabe der Zeitschrift
- 309
Datenquelle: Crossref
- Abstract
- Using laser Doppler velocimetry in the superheterodyne mode, we conducted a systematic study of the electrophoretic mobility of dispersions of small silica spheres (a=18 nm) suspended in water at different salinities and particle concentrations. The concentration of NaCl was varied from 40 microM up to 16 mM, while the particle concentrations were varied between 4.2x10(18) and 2.1x10(20) m-3. We find a decrease of mobility with increasing salt concentrations and an increase with increased particle number densities. The latter observation is not backed by the standard cell model of electrophoresis with Shilov-Zharkikh boundary conditions. Rather, if the experimental data are interpreted within that model, an unexpected change of the zeta potential at constant added salt concentration results. Interestingly, all experimental data collapse onto a single master curve, if plotted versus the ratio C* of particle counterions to added salt ions. We obtain a logarithmic increase of mobility for C*<1 and a plateau for C*>1. This may indicate a change of the Stern layer structure not yet included in the theoretical model.
- Addresses
- Institut für Physik, Johannes Gutenberg Universität, 55099 Mainz, Germany. hreiber@uni-mainz.de
- Autoren
- Holger Reiber
- Tetyana Köller
- Thomas Palberg
- Felix Carrique
- Emilio Ruiz Reina
- Roberto Piazza
- DOI
- 10.1016/j.jcis.2007.01.006
- eISSN
- 1095-7103
- Externe Identifier
- PubMed Identifier: 17331523
- Open access
- false
- ISSN
- 0021-9797
- Ausgabe der Veröffentlichung
- 2
- Zeitschrift
- Journal of colloid and interface science
- Schlüsselwörter
- Sodium Chloride
- Water
- Silicon Dioxide
- Colloids
- Suspensions
- Laser-Doppler Flowmetry
- Electrophoresis
- Particle Size
- Models, Chemical
- Sprache
- eng
- Medium
- Print-Electronic
- Online publication date
- 2007
- Paginierung
- 315 - 322
- Datum der Veröffentlichung
- 2007
- Status
- Published
- Datum der Datenerfassung
- 2007
- Titel
- Salt concentration and particle density dependence of electrophoretic mobilities of spherical colloids in aqueous suspension.
- Sub types
- Research Support, Non-U.S. Gov't
- Journal Article
- Ausgabe der Zeitschrift
- 309
Datenquelle: Europe PubMed Central
- Abstract
- Using laser Doppler velocimetry in the superheterodyne mode, we conducted a systematic study of the electrophoretic mobility of dispersions of small silica spheres (a=18 nm) suspended in water at different salinities and particle concentrations. The concentration of NaCl was varied from 40 microM up to 16 mM, while the particle concentrations were varied between 4.2x10(18) and 2.1x10(20) m-3. We find a decrease of mobility with increasing salt concentrations and an increase with increased particle number densities. The latter observation is not backed by the standard cell model of electrophoresis with Shilov-Zharkikh boundary conditions. Rather, if the experimental data are interpreted within that model, an unexpected change of the zeta potential at constant added salt concentration results. Interestingly, all experimental data collapse onto a single master curve, if plotted versus the ratio C* of particle counterions to added salt ions. We obtain a logarithmic increase of mobility for C*<1 and a plateau for C*>1. This may indicate a change of the Stern layer structure not yet included in the theoretical model.
- Date of acceptance
- 2007
- Autoren
- Holger Reiber
- Tetyana Köller
- Thomas Palberg
- Felix Carrique
- Emilio Ruiz Reina
- Roberto Piazza
- Autoren-URL
- https://www.ncbi.nlm.nih.gov/pubmed/17331523
- DOI
- 10.1016/j.jcis.2007.01.006
- ISSN
- 0021-9797
- Ausgabe der Veröffentlichung
- 2
- Zeitschrift
- J Colloid Interface Sci
- Schlüsselwörter
- Colloids
- Electrophoresis
- Laser-Doppler Flowmetry
- Models, Chemical
- Particle Size
- Silicon Dioxide
- Sodium Chloride
- Suspensions
- Water
- Sprache
- eng
- Country
- United States
- Paginierung
- 315 - 322
- PII
- S0021-9797(07)00026-4
- Datum der Veröffentlichung
- 2007
- Status
- Published
- Datum, an dem der Datensatz öffentlich gemacht wurde
- 2007
- Titel
- Salt concentration and particle density dependence of electrophoretic mobilities of spherical colloids in aqueous suspension.
- Sub types
- Journal Article
- Research Support, Non-U.S. Gov't
- Ausgabe der Zeitschrift
- 309
Datenquelle: PubMed
- Autoren
- Holger Reiber
- Tetyana Köller
- Thomas Palberg
- Felix Carrique
- Emilio Ruiz Reina
- Roberto Piazza
- DOI
- 10.1016/j.jcis.2007.01.006
- ISSN
- 0021-9797
- Zeitschrift
- Journal of Colloid and Interface Science
- Artikelnummer
- 2
- Paginierung
- 315 - 322
- Datum der Veröffentlichung
- 2007
- Datum der Datenerfassung
- 2020
- Titel
- Salt concentration and particle density dependence of electrophoretic mobilities of spherical colloids in aqueous suspension
- Sub types
- article
- Ausgabe der Zeitschrift
- 309
Datenquelle: Manual
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