Preparation of poly(N-vinylpyrrolidone)-stabilized ZnO colloid nanoparticles

Preparation of poly(N-vinylpyrrolidone)-stabilized ZnO colloid nanoparticles

We propose a method for the synthesis of a colloidal ZnO solution with poly(N-vinylpyrrolidone) (PVP) as stabilizer. Stable colloidal solutions with good luminescence properties are obtained by using PVP as stabilizer in the synthesis of ZnO nanoparticles by a sol–gel method assisted by ultrasound....

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Bibliographic Details
Main Authors: Tatyana Gutul, Emil Rusu, Nadejda Condur, Veaceslav Ursaki, Evgenii Goncearenco, Paulina Vlazan
Format: Article
Language:English
Published: Beilstein-Institut 2014-04-01
Series:Beilstein Journal of Nanotechnology
Subjects:
colloidal solutions
nanocomposite
poly(N-vinylpyrrolidone)
sol–gel
zinc oxide
Online Access:https://doi.org/10.3762/bjnano.5.47
Description
Summary:We propose a method for the synthesis of a colloidal ZnO solution with poly(N-vinylpyrrolidone) (PVP) as stabilizer. Stable colloidal solutions with good luminescence properties are obtained by using PVP as stabilizer in the synthesis of ZnO nanoparticles by a sol–gel method assisted by ultrasound. Nanoparticles with sizes of 30–40 nm in a PVP matrix are produced as a solid product. The colloidal ZnO/PVP/methanol solution, apart from the most intense PL band at 356 nm coming from the PVP, exhibits a strong PL band at 376 nm (3.30 eV) which corresponds to the emission of the free exciton recombination in ZnO nanoparticles.
ISSN:2190-4286

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