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Updated: May 19, 2026
08:44
Synthesis and Reaction Chemistry of Nanosize Monosodium Titanate
Published on: February 23, 2016
One-step synthesis of structurally controlled silicate particles from sodium silicates using a simple precipitation
Chan Yoon Jung1, Jung Soo Kim, Tae Sun Chang
1Department of Chemical Engineering, Hanyang University, 17 Haeng-dang dong, Seong-dong gu, Seoul 133-791, Korea.
Langmuir : the ACS Journal of Surfaces and Colloids
|March 19, 2010
Summary
This study presents a simple, economical one-pot synthesis for producing silica particles with controlled internal structures. The method allows for mass production of templated silica nanoparticles with diverse morphologies.
Area of Science:
- Materials Science
- Nanotechnology
- Inorganic Chemistry
Background:
- Silica nanoparticles are crucial in various applications.
- Developing cost-effective synthesis methods for templated silica is essential.
Purpose of the Study:
- To develop a scalable, template-free method for synthesizing silica particles with tunable internal structures.
- To characterize the synthesized particles and their properties.
Main Methods:
- One-pot precipitation synthesis using aqueous sodium silicate and alcohol.
- Control of reaction parameters (solvent, time, temperature, addition rate) to influence particle morphology.
- Post-synthesis purification (washing) to reduce sodium content.
- Characterization using electron microscopy, N(2) adsorption/desorption, ICP-OES, XRD, IR, and (29)Si NMR.
Main Results:
- Spherical silica particles (50-100 nm) with hollow, porous, and dense internal structures were synthesized without external templates.
- Sodium content was effectively reduced through washing.
- Particles maintained their morphology after heat treatment at 500°C.
- Detailed chemical and physical properties were elucidated.
Conclusions:
- The developed one-pot synthesis offers a simple, economical, and scalable route for producing diverse silica nanoparticles.
- This method has potential for the commercial mass production of silica particles.
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