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New sight for in-situ monitoring of silica growth process: The incorporation of Stöber process and aggregation-induced emission (AIE) technique
- Source :
- Dyes and Pigments. 182:108637
- Publication Year :
- 2020
- Publisher :
- Elsevier BV, 2020.
-
Abstract
- A silane based AIE probe (APTS-TPE) was prepared through the incorporation of (3-Aminopropyl)triethoxysilane (APTS) and tetraphenylethylene (TPE), and applied for in-situ visual monitoring of the silica growth in Stober process. The TPE groups in the APTS-TPE structure can be anchored in the -Si-O-Si- molecular network and exhibited strong fluorescence emission owing to the restriction of intramolecular motion of TPE group. Real-time in-situ particles size analysis and photoluminescence (PL) intensity analysis were carried out to follow the evolution of PL intensity with particle size. The relationship between silica size and PL intensity in parallel experiments were also discussed. Compared with traditional characterization methods, this method has the potential application for silica industrial production and fundamental research, with the advantage of sensitive, rapid and non-invasive.
- Subjects :
- Photoluminescence
Materials science
Process Chemistry and Technology
General Chemical Engineering
02 engineering and technology
Tetraphenylethylene
010402 general chemistry
021001 nanoscience & nanotechnology
01 natural sciences
Fluorescence
Silane
0104 chemical sciences
chemistry.chemical_compound
chemistry
Chemical engineering
Intramolecular force
Stöber process
Triethoxysilane
Particle size
0210 nano-technology
Subjects
Details
- ISSN :
- 01437208
- Volume :
- 182
- Database :
- OpenAIRE
- Journal :
- Dyes and Pigments
- Accession number :
- edsair.doi...........a751acb5e417b9967c2474f2b12bd282