Biogenic SiO2 in colloidal dispersions via ball milling and ultrasonication

Tutkimustuotos: Lehtiartikkelivertaisarvioitu

Tutkijat

Organisaatiot

  • Universidade Federal do Parana
  • Embrapa Forestry
  • North Carolina State University

Kuvaus

Biogenic silica from Equisetum arvense was dispersed in aqueous media by using ball milling, high-energy planetary ball milling and ultrasonication. Zeta potential (ζ), dynamic light scattering, and transmission electron microscopy revealed the electrostatic charge and morphological characteristics of the particles, which formed stable colloidal dispersions. Ball milling and ultrasonication yielded particles of 10 nm in size that clustered into larger structures. Extended milling time was effective in reducing the particle size by ball milling and ultrasonication but not by high-energy planetary ball milling. The colloidal stability of the dispersions was maximized under alkaline conditions (ζ > - 30 mV and smallest cluster size of 100-200 nm).

Yksityiskohdat

AlkuperäiskieliEnglanti
Sivut58-64
Sivumäärä7
JulkaisuPowder Technology
Vuosikerta301
TilaJulkaistu - 1 marraskuuta 2016
OKM-julkaisutyyppiA1 Julkaistu artikkeli, soviteltu

ID: 4808415