Effect of interparticle forces on the coagulation of ultrafine SiO2 particles

1996 ◽  
Vol 46 (9) ◽  
pp. 881-887
Author(s):  
E. Balabanova ◽  
D. Oliver
Keyword(s):  
Interparticle Forces ◽  
Ultrafine Sio2 ◽  
Sio2 Particles

A glance on rare earth oxides: importance, reserves, demand, applications, critical uncertainties, global economy, and zeta potential characterization

2020 ◽  
Vol 05 ◽  
Author(s):  
Silas Santos ◽  
Orlando Rodrigues ◽  
Letícia Campos
Keyword(s):  
Rare Earth ◽  
Zeta Potential ◽  
Sample Preparation ◽  
Rare Earths ◽  
Smart Materials ◽  
Global Economy ◽  
Materials Science ◽  
Functional Materials ◽  
Rare Earth Oxides ◽  
Interparticle Forces

Background: Innovation mission in materials science requires new approaches to form functional materials, wherein the concept of its formation begins in nano/micro scale. Rare earth oxides with general form (RE2O3; RE from La to Lu, including Sc and Y) exhibit particular proprieties, being used in a vast field of applications with high technological content since agriculture to astronomy. Despite of their applicability, there is a lack of studies on surface chemistry of rare earth oxides. Zeta potential determination provides key parameters to form smart materials by controlling interparticle forces, as well as their evolution during processing. This paper reports a study on zeta potential with emphasis for rare earth oxide nanoparticles. A brief overview on rare earths, as well as zeta potential, including sample preparation, measurement parameters, and the most common mistakes during this evaluation are reported. Methods: A brief overview on rare earths, including zeta potential, and interparticle forces are presented. A practical study on zeta potential of rare earth oxides - RE2O3 (RE as Y, Dy, Tm, Eu, and Ce) in aqueous media is reported. Moreover, sample preparation, measurement parameters, and common mistakes during this evaluation are discussed. Results: Potential zeta values depend on particle characteristics such as size, shape, density, and surface area. Besides, preparation of samples which involves electrolyte concentration and time for homogenization of suspensions are extremely valuable to get suitable results. Conclusion: Zeta potential evaluation provides key parameters to produce smart materials seeing that interparticle forces can be controlled. Even though zeta potential characterization is mature, investigations on rare earth oxides are very scarce. Therefore, this innovative paper is a valuable contribution on this field.

scholarly journals THE MANIPULATING OF SiO2 AND MODIFIED SiO2 PARTICLES IN ATMOSPHERE BY LASER RADIATION PRESSURE

1991 ◽  
Vol 7 (Supple) ◽  
pp. 679-681
Author(s):  
TOSHIYUKI YAMAMOTO ◽  
TOHRU FUJII ◽  
TOMOKO MATSUI ◽  
TSUGUO SAWADA
Keyword(s):  
Laser Radiation ◽  
Radiation Pressure ◽  
Sio2 Particles

Regulation of Interparticle Forces Reveals Controlled Aggregation in Charged Nanoparticles

2016 ◽  
Vol 28 (7) ◽  
pp. 2348-2355 ◽  
Author(s):  
Anish Rao ◽  
Soumendu Roy ◽  
Mahima Unnikrishnan ◽  
Sumit S. Bhosale ◽  
Gayathri Devatha ◽  
...  
Keyword(s):  
Interparticle Forces ◽  
Charged Nanoparticles

Preparation of Composite Polymer-SiO2 Particles by Rapid Expansion of Supercritical Solution with a Nonsolvent

2003 ◽  
Vol 36 (10) ◽  
pp. 1216-1221 ◽  
Author(s):  
Kiyoshi Matsuyama ◽  
Kenji Mishima ◽  
Ken-ichiro Hayashi ◽  
Ryugen Ohdate
Keyword(s):  
Rapid Expansion ◽  
Composite Polymer ◽  
Supercritical Solution ◽  
Sio2 Particles

Direct Measurement of Interparticle Forces by the Optical Trapping Technique

Langmuir ◽  
1997 ◽  
Vol 13 (21) ◽  
pp. 5528-5530 ◽  
Author(s):  
Tadao Sugimoto ◽  
Tetsuya Takahashi ◽  
Hiroyuki Itoh ◽  
Shun-ichi Sato ◽  
Atsushi Muramatsu
Keyword(s):  
Direct Measurement ◽  
Optical Trapping ◽  
Interparticle Forces
Sign in / Sign up

Export Citation Format

Share Document