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Properties of a Nanosilver–Silica Composite Synthesized with Different Molecular Weights and Polyvinylpyrrolidone Concentrations

Title
Properties of a Nanosilver–Silica Composite Synthesized with Different Molecular Weights and Polyvinylpyrrolidone Concentrations
Other Titles
PVP 분자량과 농도 변화에 따른 은-실리카 나노복합체의 특성에 관한 연구
Author
정성훈
Keywords
nano silver-silica composite; PVP; TEM image; amino group; mercapto group
Issue Date
2017-08
Publisher
한국섬유공학회
Citation
한국섬유공학회지, v. 54, no. 5, page. 309-314
Abstract
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.
URI
http://koreascience.or.kr/article/JAKO201733347804139.pagehttps://repository.hanyang.ac.kr/handle/20.500.11754/115099
ISSN
1225-1089; 2288-6419
DOI
10.12772/TSE.2017.54.309
Appears in Collections:
COLLEGE OF ENGINEERING[S](공과대학) > ORGANIC AND NANO ENGINEERING(유기나노공학과) > Articles
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