Preparation of Silver and Gold Nanoparticles by the Pin-Hole DC Plasma System

Kód výsledku v IS VaVaI

<a href="https://www.isvavai.cz/riv?ss=detail&h=RIV%2F00216305%3A26310%2F21%3APU141278" target="_blank" >RIV/00216305:26310/21:PU141278 - isvavai.cz</a>

Výsledek na webu

<a href="https://aip.scitation.org/doi/pdf/10.1063/5.0044054" target="_blank" >https://aip.scitation.org/doi/pdf/10.1063/5.0044054</a>

DOI - Digital Object Identifier

<a href="http://dx.doi.org/10.1063/5.0044054" target="_blank" >10.1063/5.0044054</a>

Jazyk výsledku

angličtina

Název v původním jazyce

Preparation of Silver and Gold Nanoparticles by the Pin-Hole DC Plasma System

Popis výsledku v původním jazyce

Silver and gold nanoparticles were produced using the pin-hole discharge generated by dc non-pulsing high voltage directly in precursor solution. Silver nitrate solution was used as the precursor for silver nanoparticles, chloroauric acid was used as the precursor for gold nanoparticles. Effects of discharge time, precursor concentration and additives such as reduction agent (ethylene glycol) and capping agent (polyethylene glycol and sucrose) were studied. Nanoparticles were mainly analysed by the UV-VIS spectrometry. The size of prepared nanoparticles was determined by the dynamic light scattering with the backscattering detection. To determine stability of nanoparticles Zeta potential was measured by the electrophoretic light scattering. It was found that the absorption maximum of nanoparticles increases with time of the discharge treatment and concentration of the precursor. The size of silver nanoparticles ranged from 10 nm to 1000 nm and final solution had higher polydispersity. The size of Au nanoparticles ranged from 10 to 100 nm, depending on the precursor concentration. The most stable particles were prepared from the pure precursor solution without any additives. Addition of ethylene glycol stimulated the reduction process of nanoparticles from the solution, but it decreased their Zeta potential. Final particles were less stable, started to form larger structures that tended to sediment. Added capping agent decreased input of power needed for the stable discharge operation. Formation of silver and gold nanoparticles was further confirmed by the scanning electron microscopy with energy dispersion spectrometer. Both silver and gold particles had spherical shapes.

Název v anglickém jazyce

Preparation of Silver and Gold Nanoparticles by the Pin-Hole DC Plasma System

Popis výsledku anglicky

Silver and gold nanoparticles were produced using the pin-hole discharge generated by dc non-pulsing high voltage directly in precursor solution. Silver nitrate solution was used as the precursor for silver nanoparticles, chloroauric acid was used as the precursor for gold nanoparticles. Effects of discharge time, precursor concentration and additives such as reduction agent (ethylene glycol) and capping agent (polyethylene glycol and sucrose) were studied. Nanoparticles were mainly analysed by the UV-VIS spectrometry. The size of prepared nanoparticles was determined by the dynamic light scattering with the backscattering detection. To determine stability of nanoparticles Zeta potential was measured by the electrophoretic light scattering. It was found that the absorption maximum of nanoparticles increases with time of the discharge treatment and concentration of the precursor. The size of silver nanoparticles ranged from 10 nm to 1000 nm and final solution had higher polydispersity. The size of Au nanoparticles ranged from 10 to 100 nm, depending on the precursor concentration. The most stable particles were prepared from the pure precursor solution without any additives. Addition of ethylene glycol stimulated the reduction process of nanoparticles from the solution, but it decreased their Zeta potential. Final particles were less stable, started to form larger structures that tended to sediment. Added capping agent decreased input of power needed for the stable discharge operation. Formation of silver and gold nanoparticles was further confirmed by the scanning electron microscopy with energy dispersion spectrometer. Both silver and gold particles had spherical shapes.

Druh

J_imp - Článek v periodiku v databázi Web of Science

CEP obor

—

OECD FORD obor

10305 - Fluids and plasma physics (including surface physics)

Projekt

Výsledek vznikl pri realizaci vícero projektů. Více informací v záložce Projekty.

Návaznosti

P - Projekt vyzkumu a vyvoje financovany z verejnych zdroju (s odkazem do CEP)<br>S - Specificky vyzkum na vysokych skolach

Rok uplatnění

2021

Kód důvěrnosti údajů

S - Úplné a pravdivé údaje o projektu nepodléhají ochraně podle zvláštních právních předpisů

Název periodika

Journal of Aplied Physics

ISSN

0021-8979

e-ISSN

1089-7550

Svazek periodika

129

Číslo periodika v rámci svazku

14

Stát vydavatele periodika

US - Spojené státy americké

Počet stran výsledku

9

Strana od-do

„233304-1“-„233304-9“

Kód UT WoS článku

000692805900001

EID výsledku v databázi Scopus

2-s2.0-85108102115