Characteristics of silver nanoparticles in different pH values
The result's identifiers
Result code in IS VaVaI
<a href="https://www.isvavai.cz/riv?ss=detail&h=RIV%2F68407700%3A21220%2F18%3A00325267" target="_blank" >RIV/68407700:21220/18:00325267 - isvavai.cz</a>
Result on the web
<a href="http://dx.doi.org/10.24425/122433" target="_blank" >http://dx.doi.org/10.24425/122433</a>
DOI - Digital Object Identifier
<a href="http://dx.doi.org/10.24425/122433" target="_blank" >10.24425/122433</a>
Alternative languages
Result language
angličtina
Original language name
Characteristics of silver nanoparticles in different pH values
Original language description
Stability of silver nanoparticles strongly influences the potential of their application. The literature shows wide possibilities of nanoparticles preparation, which has significantly impact on their properties. Therefore, the improvement of AgNPs preparation plays a key role in the case of their practical use. The pH values of the environment are one of the important factors, which directly influences stability of AgNPs. We present a comparing study of the silver nanoparticles prepared by „bottom-up“methods over by chemical synthesis and biosynthesis using AgNO3 (0.29 mM) solution. For the biosynthesis of the silver nanoparticles, the green freshwater algae Parachlorella kessleri and Citrus limon extracts were used as reducing and stabilizing agents. Chemically synthesized AgNPs were performed using sodium citrate (0.5%) as a capping agent and 0.01% gelatine as a reducing agent. The formation and long term stability of those silver nanoparticles synthesized either biologically and chemically were clearly observed by solution colour changes and confirmed by UV-vis spectroscopy. The pH values of formed nanoparticle solutions were 3 and 5.8 for biosynthesized AgNPs using extract of Citrus limon and Parachlorella kessleri, respectively and 7.2 for chemically prepared AgNPs solution using citrate. The SEM as a surface imaging method was used for the characterization of nanoparticle shapes, size distribution and also for resolving different particle sizes. These micrographs confirmed the presence of dispersed and aggregated AgNPs with various shapes and sizes
Czech name
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Czech description
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Classification
Type
J<sub>imp</sub> - Article in a specialist periodical, which is included in the Web of Science database
CEP classification
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OECD FORD branch
20501 - Materials engineering
Result continuities
Project
<a href="/en/project/LO1207" target="_blank" >LO1207: Support of Sustainability of the Innovation Centre of Diagnostics and Applications of Materials at CTU-FME in Prague</a><br>
Continuities
P - Projekt vyzkumu a vyvoje financovany z verejnych zdroju (s odkazem do CEP)
Others
Publication year
2018
Confidentiality
S - Úplné a pravdivé údaje o projektu nepodléhají ochraně podle zvláštních právních předpisů
Data specific for result type
Name of the periodical
Archives of Metallurgy and Materials
ISSN
1733-3490
e-ISSN
2300-1909
Volume of the periodical
63
Issue of the periodical within the volume
2
Country of publishing house
PL - POLAND
Number of pages
6
Pages from-to
993-998
UT code for WoS article
000439031800059
EID of the result in the Scopus database
2-s2.0-85049780549