title: Influence of individual ionic components on the agglomeration kinetics of silver nanoparticles.
abstract: The precise characteristic of the agglomeration behavior of colloidal suspensions is of paramount interest to many current studies in nanoscience. This work seeks to elucidate the influence that differently charged salts have on the agglomeration state of a Lee-Meisel-type silver colloid. Moreover, we investigate the influence of the chemical nature of individual ions on their potential to induce agglomeration. Raman spectroscopy and surface-enhanced Raman spectroscopy are used to give insights into mechanistic aspects of the agglomeration process and to assess the differences in the influence of different salts on the agglomeration behavior. Finally, we demonstrate the potential of the measurement procedure used in this work to determine the elementary charge on colloidal NPs.
authors.affiliation: Institute for Physical Chemistry and Centre for Water and Environmental Research, University of Duisburg-Essen, Universitaetsstrasse 5-7, 45117 Essen, Germany.
authors.forename: J S
authors.initials: JS
authors.lastname: Gebauer
authors.forename: L
authors.initials: L
authors.lastname: Treuel
mesh_terms: D002712:Chlorides / Q000737:chemistry; D003102:Colloids / Q000737:chemistry; D007477:Ions / Q000737:chemistry; D053758:Nanoparticles / Q000737:chemistry* / Q000648:ultrastructure; D010316:Particle Size; D012492:Salts / Q000737:chemistry*; D012834:Silver / Q000737:chemistry*; D013059:Spectrum Analysis, Raman; D013431:Sulfates / Q000737:chemistry
chemical_list: D002712:Chlorides; D003102:Colloids; D007477:Ions; D012492:Salts; D013431:Sulfates; D012834:Silver