Preparación de nanopartículas de plata en ausencia de polimeros estabilizantes Preparation of silver nanoparticles in the absence of polymer stabilizers
<abstract language="eng">Silver nanoparticles (AgNPs) were prepared by means of the polyol method in the absence of stabilizing polymers. To accomplish this objective, AgNO3 was added to ethylene glycol in the presence of NaOH (1 mol.L-1), the suspension formed was irradiated with a...
| Main Authors: | , , , , , , , |
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| Format: | Article |
| Language: | English |
| Published: |
Sociedade Brasileira de Química
2010-01-01
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| Series: | Química Nova |
| Subjects: | |
| Online Access: | http://www.scielo.br/scielo.php?script=sci_arttext&pid=S0100-40422010000600009 |
| _version_ | 1818791745756856320 |
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| author | Ángela B. Sifontes Luis Melo Carlos Maza Juan J. Mendes Marta Mediavilla Joaquín L. Brito Tamara Zoltan Alberto Albornoz |
| author_facet | Ángela B. Sifontes Luis Melo Carlos Maza Juan J. Mendes Marta Mediavilla Joaquín L. Brito Tamara Zoltan Alberto Albornoz |
| author_sort | Ángela B. Sifontes |
| collection | DOAJ |
| description | <abstract language="eng">Silver nanoparticles (AgNPs) were prepared by means of the polyol method in the absence of stabilizing polymers. To accomplish this objective, AgNO3 was added to ethylene glycol in the presence of NaOH (1 mol.L-1), the suspension formed was irradiated with a microwave source for 60 seconds at a power of 465 watts. It was found that under these conditions AgNPs of sizes between 4-18 nm are formed. Also the results indicate that part of the ethylene glycol is oxidized to carbonyl compounds that reduce the Ag+. These organic compounds are adsorbed on the surfaces of AgNPs, forming a protective film that prevents their aggregation. |
| first_indexed | 2024-12-18T15:16:14Z |
| format | Article |
| id | doaj.art-9931e5692a534a69961ce63b518739c2 |
| institution | Directory Open Access Journal |
| issn | 0100-4042 1678-7064 |
| language | English |
| last_indexed | 2024-12-18T15:16:14Z |
| publishDate | 2010-01-01 |
| publisher | Sociedade Brasileira de Química |
| record_format | Article |
| series | Química Nova |
| spelling | doaj.art-9931e5692a534a69961ce63b518739c22022-12-21T21:03:31ZengSociedade Brasileira de QuímicaQuímica Nova0100-40421678-70642010-01-013361266126910.1590/S0100-40422010000600009Preparación de nanopartículas de plata en ausencia de polimeros estabilizantes Preparation of silver nanoparticles in the absence of polymer stabilizersÁngela B. SifontesLuis MeloCarlos MazaJuan J. MendesMarta MediavillaJoaquín L. BritoTamara ZoltanAlberto Albornoz<abstract language="eng">Silver nanoparticles (AgNPs) were prepared by means of the polyol method in the absence of stabilizing polymers. To accomplish this objective, AgNO3 was added to ethylene glycol in the presence of NaOH (1 mol.L-1), the suspension formed was irradiated with a microwave source for 60 seconds at a power of 465 watts. It was found that under these conditions AgNPs of sizes between 4-18 nm are formed. Also the results indicate that part of the ethylene glycol is oxidized to carbonyl compounds that reduce the Ag+. These organic compounds are adsorbed on the surfaces of AgNPs, forming a protective film that prevents their aggregation.http://www.scielo.br/scielo.php?script=sci_arttext&pid=S0100-40422010000600009nanoparticlespolyol methodsilver |
| spellingShingle | Ángela B. Sifontes Luis Melo Carlos Maza Juan J. Mendes Marta Mediavilla Joaquín L. Brito Tamara Zoltan Alberto Albornoz Preparación de nanopartículas de plata en ausencia de polimeros estabilizantes Preparation of silver nanoparticles in the absence of polymer stabilizers Química Nova nanoparticles polyol method silver |
| title | Preparación de nanopartículas de plata en ausencia de polimeros estabilizantes Preparation of silver nanoparticles in the absence of polymer stabilizers |
| title_full | Preparación de nanopartículas de plata en ausencia de polimeros estabilizantes Preparation of silver nanoparticles in the absence of polymer stabilizers |
| title_fullStr | Preparación de nanopartículas de plata en ausencia de polimeros estabilizantes Preparation of silver nanoparticles in the absence of polymer stabilizers |
| title_full_unstemmed | Preparación de nanopartículas de plata en ausencia de polimeros estabilizantes Preparation of silver nanoparticles in the absence of polymer stabilizers |
| title_short | Preparación de nanopartículas de plata en ausencia de polimeros estabilizantes Preparation of silver nanoparticles in the absence of polymer stabilizers |
| title_sort | preparacion de nanoparticulas de plata en ausencia de polimeros estabilizantes preparation of silver nanoparticles in the absence of polymer stabilizers |
| topic | nanoparticles polyol method silver |
| url | http://www.scielo.br/scielo.php?script=sci_arttext&pid=S0100-40422010000600009 |
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