Abstract
Aerogel is a kind of gel materials, of which the fluid phase is gas. Aerogel has the characteristics of low density and high porosity, and has a wide application prospects. In this work, a rapid solvents exchange method was developed, and using in-situ secondary extraction, rapid solvents exchange in aerogel preparation was achieved through the miscibility and immiscibility of ethanol-dichloromethane-water. Combined with hydrophobic treatment and vacuum drying, hydrophobic silica aerogel was obtained. The aerogel had a low density and a contact angle with water of 155.8°. The aerogel can load various organic fluorescent probe dyes, which can effectively avoid the fluorescence quenching caused by the aggregation of the probe molecules, which it will expand the practical application range of the organic fluorescent probes in wider fields.
Translated title of the contribution | Preparation of Hydrophobic SiO 2 Aerogel by Rapid Solvents Exchange Method and Its Application Loaded with Organic Fluorescence Probe |
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Original language | Chinese (Traditional) |
Pages (from-to) | 550-554 |
Number of pages | 5 |
Journal | Chinese Journal of Organic Chemistry |
Volume | 39 |
Issue number | 2 |
DOIs | |
State | Published - 1 Feb 2019 |
Externally published | Yes |
Keywords
- Aerogel
- Application
- Organic fluorescence probe
- Preparation
- Rapid solvents exchange method