Danielescu Dan Cristian; Putz Ana-Maria; Savii Cecilia; Sfarloaga Paula: Urea formaldehyde coated with Silica (Nano) capsules synthesis in ultrasonic field.
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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.
| Mű típusa: | Konferencia vagy workshop anyag |
|---|---|
| Befoglaló folyóirat/kiadvány címe: | Proceedings of the International Symposium on Analytical and Environmental Problems |
| Dátum: | 2012 |
| Kötet: | 17 |
| ISBN: | 978-963-315-066-5 |
| Oldalak: | pp. 409-412 |
| Nyelv: | angol |
| Kiadó: | SZAB |
| Kiadás helye: | Szeged |
| Konferencia neve: | International Symposium on Analytical and Environmental Problems (17.) (2011) (Szeged) |
| Konferencia típusa: | Konferencia |
| Helyszin: | Szeged |
| Dátum: | 2011. szeptember 19. |
| Befoglaló mű URL: | http://acta.bibl.u-szeged.hu/76381/ |
| Kulcsszavak: | Elektrokémia |
| Megjegyzések: | Bibliogr.: 412. p. ; ill. ; összefoglalás angol nyelven |
| Szakterület: | 01. Természettudományok 01. Természettudományok > 01.04. Kémiai tudományok |
| Feltöltés dátuma: | 2022. aug. 11. 08:36 |
| Utolsó módosítás: | 2022. aug. 22. 10:23 |
| URI: | http://acta.bibl.u-szeged.hu/id/eprint/76475 |
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