Urea formaldehyde coated with Silica (Nano) capsules synthesis in ultrasonic field
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 protectio...
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Dokumentumtípus: | Könyv része |
Megjelent: |
SZAB
Szeged
2012
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Sorozat: | Proceedings of the International Symposium on Analytical and Environmental Problems
17 |
Kulcsszavak: | Elektrokémia |
Tárgyszavak: | |
Online Access: | http://acta.bibl.u-szeged.hu/76475 |
Tartalmi kivonat: | 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. |
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Terjedelem/Fizikai jellemzők: | 409-412 |
ISBN: | 978-963-315-066-5 |