Eco-Friendly Synthesis of Silver Nanoparticles Using Pulsed Plasma in Liquid: Effect of Surfactants.

Autor:	Niu, Yubiao, Omurzak, Emil, Cai, Rongsheng, Syrgakbek kyzy, Dinara, Zhasnakunov, Zhanarbek, Satyvaldiev, Abduraim, Palmer, Richard E.
Předmět:	SILVER nanoparticles SCANNING transmission electron microscopy SURFACE active agents LIQUID dielectrics SODIUM sulfate
Zdroj:	Surfaces (2571-9637); Mar2022, Vol. 5 Issue 1, p202-208, 7p
Abstrakt:	Silver (Ag) nanoparticles were successfully prepared by using the in-liquid pulsed plasma technique. This method is based on a low voltage, pulsed spark discharge in a dielectric liquid. We explore the effect of the protecting ligands, specifically Cetyl Trimethylammonium Bromide (CTAB), Polyvinylpyrrolidone (PVP), and Sodium n-Dodecyl Sulphate (SDS), used as surfactant materials to prevent nanoparticle aggregation. The X-Ray Diffraction (XRD) patterns of the samples confirm the face-centered cubic crystalline structure of Ag nanoparticles with the presence of Ag2O skin. Scanning Transmission Electron Microscopy (STEM) reveals that spherically shaped Ag nanoparticles with a diameter of 2.2 ± 0.8 nm were synthesised in aqueous solution with PVP surfactant. Similarly, silver nanoparticles with a peak diameter of 1.9 ± 0.4 nm were obtained with SDS surfactant. A broad size distribution was found in the case of CTAB surfactant. [ABSTRACT FROM AUTHOR]
Databáze:	Complementary Index
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