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Title: Effect of Anionic Surfactants on Synthesis and Self-Assembly of Silica Colloidal Nanoparticles

Abstract

Effects of the anionic surfactants, sodium dodecyl sulfate and sodium oleate, on the formation and properties of silica colloidal nanoparticles were investigated. At a concentration of ~1 e10-3 M, adsorption of anionic surfactants increased particle size, monodispersity, and negative surface charge density of synthesized silica particles. As uniformity of particle size and particle-particle interactions increase, colloidal photonic crystals readily self-assemble without extensive washing of the synthesized silica nanoparticles. The photonic crystals diffract light in the visible region according to Bragg s law. The assembled colloidal particle arrays exhibit a face-centered cubic structure in dried thin films. This study offers a new approach for producing ordered colloidal silica thin films.

Authors:
 [1];  [1];  [1]
  1. ORNL
Publication Date:
Research Org.:
Oak Ridge National Lab. (ORNL), Oak Ridge, TN (United States)
Sponsoring Org.:
USDOE Office of Science (SC)
OSTI Identifier:
931794
DOE Contract Number:
DE-AC05-00OR22725
Resource Type:
Journal Article
Resource Relation:
Journal Name: Journal of Colloid and Interface Science; Journal Volume: 313; Journal Issue: 1
Country of Publication:
United States
Language:
English
Subject:
36 MATERIALS SCIENCE; COLLOIDS; NANOSTRUCTURES; ADSORPTION; CHARGE DENSITY; PARTICLE SIZE; SILICA; SURFACTANTS; CATALYTIC EFFECTS; SYNTHESIS; FCC LATTICES; THIN FILMS

Citation Formats

Wang, Wei, Gu, Baohua, and Liang, Liyuan. Effect of Anionic Surfactants on Synthesis and Self-Assembly of Silica Colloidal Nanoparticles. United States: N. p., 2007. Web. doi:10.1016/j.jcis.2007.04.042.
Wang, Wei, Gu, Baohua, & Liang, Liyuan. Effect of Anionic Surfactants on Synthesis and Self-Assembly of Silica Colloidal Nanoparticles. United States. doi:10.1016/j.jcis.2007.04.042.
Wang, Wei, Gu, Baohua, and Liang, Liyuan. Mon . "Effect of Anionic Surfactants on Synthesis and Self-Assembly of Silica Colloidal Nanoparticles". United States. doi:10.1016/j.jcis.2007.04.042.
@article{osti_931794,
title = {Effect of Anionic Surfactants on Synthesis and Self-Assembly of Silica Colloidal Nanoparticles},
author = {Wang, Wei and Gu, Baohua and Liang, Liyuan},
abstractNote = {Effects of the anionic surfactants, sodium dodecyl sulfate and sodium oleate, on the formation and properties of silica colloidal nanoparticles were investigated. At a concentration of ~1 e10-3 M, adsorption of anionic surfactants increased particle size, monodispersity, and negative surface charge density of synthesized silica particles. As uniformity of particle size and particle-particle interactions increase, colloidal photonic crystals readily self-assemble without extensive washing of the synthesized silica nanoparticles. The photonic crystals diffract light in the visible region according to Bragg s law. The assembled colloidal particle arrays exhibit a face-centered cubic structure in dried thin films. This study offers a new approach for producing ordered colloidal silica thin films.},
doi = {10.1016/j.jcis.2007.04.042},
journal = {Journal of Colloid and Interface Science},
number = 1,
volume = 313,
place = {United States},
year = {Mon Jan 01 00:00:00 EST 2007},
month = {Mon Jan 01 00:00:00 EST 2007}
}
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