Generation of Silver Nanoparticles by the Pin-Hole DC Plasma Source with and without Gas Bubbling

Z. Kozáková, F. Krčma, L. Čechová, S. Simic, L. Doskočil

Abstract


Silver nanoparticles were produced using the pin-hole discharge generated by dc non-pulsing high voltage directly in silver nitrate solutions. Sodium nitrate was alternatively added to increase solution conductivity and decrease input energy for the discharge breakdown. Argon or oxygen was bubbled through the discharge region. Comparative experiments were evaluated by UV-VIS spectrometry. Formation of silver nanoparticles with the average size of 100 nm was confirmed by SEM/EDS analysis.

Keywords


plasma in liquids; pin-hole discharges; silver nanoparticles; silver nitrate; gas bubbling; SEM/EDS analysis

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