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Particle size distribution effects on the light scattering properties in non-diluted colloidal suspensions : A numerical study
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| Title: | Particle size distribution effects on the light scattering properties in non-diluted colloidal suspensions : A numerical study |
| Authors: | Fujii, Hiroyuki Browse this author →KAKEN DB | | Na, Hyeonwoo Browse this author | | Yi, Jungyun Browse this author | | Kobayashi, Kazumichi Browse this author | | Watanabe, Masao Browse this author |
| Keywords: | Particle size distribution effects | | Static light scattering technique | | Light scattering properties | | Dependent scattering theory | | Local monodisperse approximation |
| Issue Date: | 28-Aug-2024 |
| Publisher: | Elsevier |
| Journal Title: | Colloids and Surfaces A : Physicochemical and Engineering Aspects |
| Volume: | 703 |
| Issue: | 1 |
| Start Page: | 135208 |
| Publisher DOI: | 10.1016/j.colsurfa.2024.135208 |
| Abstract: | The static light scattering technique potentially offers a nondestructive evaluation of a particle size distribution
in dense colloidal suspensions. Understanding the size distribution’s correlation with the light scattering
properties and modeling electromagnetic scattering with high accuracy and efficiency are crucial for technique
development. The polydisperse dependent scattering theory (DST) is an accurate model, but its calculation
is costly. We aim to numerically examine the size distribution effects on the scattering properties of dense
suspensions up to the volume fraction of 20% in the near-infrared wavelength of 600–1000 nm using three
electromagnetic models: the polydisperse and monodisperse DST, and the local monodisperse approximation
(LMA). We considered various size distributions in Gaussian and logarithmic forms with constant standard
deviations of 21 nm and 101 nm in the mean diameter range of 75–700 nm by shifting the distribution while
keeping its shape. We showed that the monodisperse approximation is invalid at a small mean diameter of
less than 200 nm, even at the sharp Gaussian distribution. It suggests the strong size distribution effects.
Meanwhile, the approximation holds at a large diameter of more than 650 nm, even at the broad logarithmic
distribution. We showed that the LMA results nicely agree with the polydisperse DST results for all the current |
| Rights: | © 2024, Elsevier. This manuscript version is made available under the CC-BY-NC-ND 4.0 license | | https://creativecommons.org/licenses/by-nc-nd/4.0/ |
| Type: | article |
| URI: | http://hdl.handle.net/2115/93034 |
| Appears in Collections: | 工学院・工学研究院 (Graduate School of Engineering / Faculty of Engineering) > 雑誌発表論文等 (Peer-reviewed Journal Articles, etc)
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Submitter: 藤井 宏之
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