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Hemijska industrija
2011, vol. 65, br. 6, str. 687-696
jezik rada: srpski
vrsta rada: naučni članak
objavljeno: 25/01/2012
doi: 10.2298/HEMIND110915064J
Srebro/poli(N-vinil-2-pirolidon) nanokompoziti dobijeni elektrohemijskom sintezom
aUniverzitet u Beogradu, Tehnološko-metalurški fakultet
bUniverzitet u Beogradu, Institut za nuklearne nauke Vinča, Beograd-Vinča

e-adresa: vesna@tmf.bg.ac.rs

Projekat

Sinteza, razvoj tehnologija dobijanja i primena nanostrukturnih multifunkcionalnih materijala definisanih svojstava (MPNTR - 45019)
Funkcionalni, funkcionalizovani i usavršeni nano materijali (MPNTR - 45005)

Sažetak

Nanokompoziti srebra i poli(N-vinil-2-pirolidona), PVP, dobijeni su elektrohemijskom redukcijom Ag+ pri konstantnom naponu, in situ sintezom nanočestica srebra u umreženoj matrici PVP, prethodno dobijenoj radijaciono-hemijskim putem. Optimizacija elektrohemijske sinteze nanočestica srebra je vršena variranjem sledećih parametara: sastava rastvora za bubrenje PVP hidrogela, vremena implementacije i primenjenog napona. Prisustvo nanočestica srebra u Ag/PVP nanokompozitima potvrđeno je UV-vidljivom spektroskopijom, dok je postojanje interakcija između nanočestica srebra i molekula PVP potvrđeno FTIR spektroskopijom. Rezultati rada ukazuju na to da je redukcija srebra efikasnija kada se koristi rastvor za bubrenje veće provodljivosti, kao i da koncentracija dobijenih nanočestica srebra raste sa produžetkom vremena implementacije i povećanjem primenjenog napona.

Ključne reči

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