Silver/poly(N-vinyl-2-pyrrolidone) nanocomposites obtained by the electrochemical synthesis
Silver/poly(N-vinyl-2-pyrrolidone) (Ag/PVP) nanocomposites were obtained by electrochemical reduction of Ag+ ions at a constant voltage, by the in situ synthesis of silver nanoparticles inside poly(N-vinyl-2-pyrrolidone) matrix, previously crosslinked by γ-irradiation. Optimal values of synthesis...
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| Format: | Article |
| Language: | English |
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Association of Chemical Engineers of Serbia
2011-01-01
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| Series: | Hemijska Industrija |
| Subjects: | |
| Online Access: | http://www.doiserbia.nb.rs/img/doi/0367-598X/2011/0367-598X1100064J.pdf |
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| author | Jovanović Željka Radosavljević Aleksandra Kačarević-Popović Zorica Mišković-Stanković Vesna |
| author_facet | Jovanović Željka Radosavljević Aleksandra Kačarević-Popović Zorica Mišković-Stanković Vesna |
| author_sort | Jovanović Željka |
| collection | DOAJ |
| description | Silver/poly(N-vinyl-2-pyrrolidone) (Ag/PVP) nanocomposites were obtained by electrochemical reduction of Ag+ ions at a constant voltage, by the in situ synthesis of silver nanoparticles inside poly(N-vinyl-2-pyrrolidone) matrix, previously crosslinked by γ-irradiation. Optimal values of synthesis parameters were investigated: the composition of the solution for swelling of PVP hydrogel, implementation time and applied voltage. Ag/PVP nanocomposites were characterized by UV-visible spectroscopy, and IR spectroscopy. UV-visible spectroscopy results shown that the reduction of silver ions was more efficient when the more conductive solution for swelling of PVP hydrogel was used, i.e. the solution containing 3.9 mM AgNO3 with 0.1 M KNO3. Also, it was shown that the concentration of the reduced silver increases with the increase in implementation time and applied voltage, up to the values of 4 min, and 200 V, respectively. The Ag nanoparticle size was estimated to be 25 nm, by comparison of the experimental results of UV-vis spectroscopy with the theoretical predictions obtained by the calculations in “MiePlot v.3.4” computer program, having the algorithm based on Mie scattering from a sphere. The results of FTIR spectroscopy have shown that Ag nanoparticles are mainly bonded to PVP by coordination bondages between Ag nanoparticles and N from the pyrrolidone ring of PVP. |
| first_indexed | 2024-12-22T10:09:32Z |
| format | Article |
| id | doaj.art-6245b409b64d4ab09bf02e7e69aa5a3c |
| institution | Directory Open Access Journal |
| issn | 0367-598X |
| language | English |
| last_indexed | 2024-12-22T10:09:32Z |
| publishDate | 2011-01-01 |
| publisher | Association of Chemical Engineers of Serbia |
| record_format | Article |
| series | Hemijska Industrija |
| spelling | doaj.art-6245b409b64d4ab09bf02e7e69aa5a3c2022-12-21T18:29:54ZengAssociation of Chemical Engineers of SerbiaHemijska Industrija0367-598X2011-01-0165668769610.2298/HEMIND110915064JSilver/poly(N-vinyl-2-pyrrolidone) nanocomposites obtained by the electrochemical synthesisJovanović ŽeljkaRadosavljević AleksandraKačarević-Popović ZoricaMišković-Stanković VesnaSilver/poly(N-vinyl-2-pyrrolidone) (Ag/PVP) nanocomposites were obtained by electrochemical reduction of Ag+ ions at a constant voltage, by the in situ synthesis of silver nanoparticles inside poly(N-vinyl-2-pyrrolidone) matrix, previously crosslinked by γ-irradiation. Optimal values of synthesis parameters were investigated: the composition of the solution for swelling of PVP hydrogel, implementation time and applied voltage. Ag/PVP nanocomposites were characterized by UV-visible spectroscopy, and IR spectroscopy. UV-visible spectroscopy results shown that the reduction of silver ions was more efficient when the more conductive solution for swelling of PVP hydrogel was used, i.e. the solution containing 3.9 mM AgNO3 with 0.1 M KNO3. Also, it was shown that the concentration of the reduced silver increases with the increase in implementation time and applied voltage, up to the values of 4 min, and 200 V, respectively. The Ag nanoparticle size was estimated to be 25 nm, by comparison of the experimental results of UV-vis spectroscopy with the theoretical predictions obtained by the calculations in “MiePlot v.3.4” computer program, having the algorithm based on Mie scattering from a sphere. The results of FTIR spectroscopy have shown that Ag nanoparticles are mainly bonded to PVP by coordination bondages between Ag nanoparticles and N from the pyrrolidone ring of PVP.http://www.doiserbia.nb.rs/img/doi/0367-598X/2011/0367-598X1100064J.pdfSilver nanoparticlespoly(N-vinyl-2-pyrrolidone)nanocompositeselectrochemical reductionspectroscopy |
| spellingShingle | Jovanović Željka Radosavljević Aleksandra Kačarević-Popović Zorica Mišković-Stanković Vesna Silver/poly(N-vinyl-2-pyrrolidone) nanocomposites obtained by the electrochemical synthesis Hemijska Industrija Silver nanoparticles poly(N-vinyl-2-pyrrolidone) nanocomposites electrochemical reduction spectroscopy |
| title | Silver/poly(N-vinyl-2-pyrrolidone) nanocomposites obtained by the electrochemical synthesis |
| title_full | Silver/poly(N-vinyl-2-pyrrolidone) nanocomposites obtained by the electrochemical synthesis |
| title_fullStr | Silver/poly(N-vinyl-2-pyrrolidone) nanocomposites obtained by the electrochemical synthesis |
| title_full_unstemmed | Silver/poly(N-vinyl-2-pyrrolidone) nanocomposites obtained by the electrochemical synthesis |
| title_short | Silver/poly(N-vinyl-2-pyrrolidone) nanocomposites obtained by the electrochemical synthesis |
| title_sort | silver poly n vinyl 2 pyrrolidone nanocomposites obtained by the electrochemical synthesis |
| topic | Silver nanoparticles poly(N-vinyl-2-pyrrolidone) nanocomposites electrochemical reduction spectroscopy |
| url | http://www.doiserbia.nb.rs/img/doi/0367-598X/2011/0367-598X1100064J.pdf |
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