Biogenic SiO2 in colloidal dispersions via ball milling and ultrasonication

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Biogenic SiO2 in colloidal dispersions via ball milling and ultrasonication. / Mattos, Bruno D.; Rojas, Orlando J.; Magalhães, Washington L. E.

In: Powder Technology, Vol. 301, 01.11.2016, p. 58-64.

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Mattos, Bruno D. ; Rojas, Orlando J. ; Magalhães, Washington L. E. / Biogenic SiO2 in colloidal dispersions via ball milling and ultrasonication. In: Powder Technology. 2016 ; Vol. 301. pp. 58-64.

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@article{5c3b2d1a3fe74406896b98e9486be014,
title = "Biogenic SiO2 in colloidal dispersions via ball milling and ultrasonication",
abstract = "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).",
keywords = "Biogenic nanosilica, Colloidal dispersions, Equisetum arvense, Surface charge",
author = "Mattos, {Bruno D.} and Rojas, {Orlando J.} and Magalh{\~a}es, {Washington L. E.}",
year = "2016",
month = "11",
day = "1",
doi = "10.1016/j.powtec.2016.05.052",
language = "English",
volume = "301",
pages = "58--64",
journal = "Powder Technology",
issn = "0032-5910",
publisher = "Elsevier",

}

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TY - JOUR

T1 - Biogenic SiO2 in colloidal dispersions via ball milling and ultrasonication

AU - Mattos, Bruno D.

AU - Rojas, Orlando J.

AU - Magalhães, Washington L. E.

PY - 2016/11/1

Y1 - 2016/11/1

N2 - 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).

AB - 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).

KW - Biogenic nanosilica

KW - Colloidal dispersions

KW - Equisetum arvense

KW - Surface charge

UR - http://www.scopus.com/inward/record.url?scp=84971423393&partnerID=8YFLogxK

U2 - 10.1016/j.powtec.2016.05.052

DO - 10.1016/j.powtec.2016.05.052

M3 - Article

VL - 301

SP - 58

EP - 64

JO - Powder Technology

JF - Powder Technology

SN - 0032-5910

ER -

ID: 4808415