Properties of a Nanosilver–Silica Composite Synthesized with Different Molecular Weights and Polyvinylpyrrolidone Concentrations
Well-dispersed nanosilver particles were synthesized by a chemical reduction method, where silica was treated with amino groups, mercapto groups, and polyvinylpyrrolidone (PVP) as a dispersant. Transmission electron microscopy (TEM) images showed that both the concentration and the molecular weight...
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| Published in | 한국섬유공학회지, 54(5) pp. 309 - 314 |
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| Main Authors | , |
| Format | Journal Article |
| Language | English |
| Published |
한국섬유공학회
01.10.2017
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| Subjects | |
| Online Access | Get full text |
| ISSN | 1225-1089 2288-6419 |
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| Summary: | Well-dispersed nanosilver particles were synthesized by a chemical reduction method, where silica was treated with amino groups, mercapto groups, and polyvinylpyrrolidone (PVP) as a dispersant. Transmission electron microscopy (TEM) images showed that both the concentration and the molecular weight of PVP considerably affected the size of the silver nanoparticles. The average size of the silver nanoparticles prepared with amino-treated silica increased with increasing PVP concentration, whereas the size of the silver nanoparticles prepared with mercapto-treated silica was not affected by the PVP concentration.
As the molecular weight of PVP increased, the average size of the silver nanoparticles also increased. The number of silver particles formed with mercapto-treated silica was larger, and the size distribution was narrower than those formed from aminotreated silica. KCI Citation Count: 0 |
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| ISSN: | 1225-1089 2288-6419 |