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Eco-friendly synthesis of silver nanoparticles by pulsed plasma in-liquid: effect of surfactants

Yubiao Niu

Surfaces, Volume: 5, Issue: 1

Swansea University Author: Yubiao Niu

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DOI (Published version): 10.3390/surfaces5010013

Abstract

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), Polyvinylpy...

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Published in: Surfaces
ISSN: 2571-9637
Published: MDPI 2022
Online Access: Check full text

URI: https://cronfa.swan.ac.uk/Record/cronfa59399
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Abstract: 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.
Item Description: This article belongs to the Special Issue Surface Modification of Nanoparticles for Biomedical Applications
College: Faculty of Science and Engineering
Funders: UK’s EPSRC project of “Super-Abundant Size-Selected Cluster Technology for Nanoscale Design of Functional Materials” (Grant Reference No. EP/ K006061/2).; Ministry of Education and Science of the Kyrgyz Republic (project #0007670)
Issue: 1

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