Danielescu Dan Cristian and Putz Ana-Maria and Savii Cecilia and Sfarloaga Paula: Urea formaldehyde coated with Silica (Nano) capsules synthesis in ultrasonic field.
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Abstract
Silica nanomaterials with meso- and macroporosity are of great interest due to their variety of potential applications. These hybrid nanomaterials, including hollow silica nano and micro-particles have attracted more and more attention with potential applications in medicine, environmental protection and analytical chemistry. In this work we present a fast and simple method for of urea-formaldehyde (UF) nanoparticles obtained in basic medium encapsulation by a thin shell coating of silica, thus yielding organic-inorganic hybrid materials. It was employed (U:F): SiC^: mole ratios of (1:1 ):5; (1:1): 10; respectively. The influence of reaction parameters variation as temperature, pH, and time were studied. The morphology and structure of the products were characterized by FTIR spectroscopy, and Scanning Electron Microscopy; SEM. It was put in evidence some of resulted samples characteristics that are correlated to synthesis conditions.
| Item Type: | Conference or Workshop Item |
|---|---|
| Journal or Publication Title: | Proceedings of the International Symposium on Analytical and Environmental Problems |
| Date: | 2012 |
| Volume: | 17 |
| ISBN: | 978-963-315-066-5 |
| Page Range: | pp. 409-412 |
| Language: | English |
| Publisher: | SZAB |
| Place of Publication: | Szeged |
| Event Title: | International Symposium on Analytical and Environmental Problems (17.) (2011) (Szeged) |
| Event Type: | Conference |
| Event Location: | Szeged |
| Event Dates: | 2011. szeptember 19. |
| Related URLs: | http://acta.bibl.u-szeged.hu/76381/ |
| Uncontrolled Keywords: | Elektrokémia |
| Additional Information: | Bibliogr.: 412. p. ; ill. ; összefoglalás angol nyelven |
| Subjects: | 01. Natural sciences 01. Natural sciences > 01.04. Chemical sciences |
| Date Deposited: | 2022. Aug. 11. 08:36 |
| Last Modified: | 2022. Aug. 22. 10:23 |
| URI: | http://acta.bibl.u-szeged.hu/id/eprint/76475 |
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