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Zeta-potential and particle size studies of silver sulphide nanoparticles

Silver sulfide (Ag2S) nanoparticles (NPs) were prepared successfully for the first time using diethylene glycol (DEG) as a surfactant. X-ray diffraction (XRD) data revealed single phase nature of the compound and energy-dispersive X-ray (EDX) confirmed its nominal composition. Their sizes were 43 nm...

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Main Authors: Sharma, Vikash, Tarachand, Ganesan, V., Okram, Gunadhor S.
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Okram, Gunadhor S.
description Silver sulfide (Ag2S) nanoparticles (NPs) were prepared successfully for the first time using diethylene glycol (DEG) as a surfactant. X-ray diffraction (XRD) data revealed single phase nature of the compound and energy-dispersive X-ray (EDX) confirmed its nominal composition. Their sizes were 43 nm from XRD, 50 nm from atomic force microscopy (AFM) and 19 nm & 213 nm from dynamic light scattering (DLS); their differences have been discussed. Autotitration study of zeta potential of these NPs in deionized water by DLS at different pH values confirmed an isoelectric point at pH = 5.14 and their very unstable nature in deionized water.
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subjects ATOMIC FORCE MICROSCOPY
Deionization
LIGHT SCATTERING
NANOPARTICLES
NANOSCIENCE AND NANOTECHNOLOGY
PARTICLE SIZE
PH VALUE
Photon correlation spectroscopy
SILVER
SILVER SULFIDES
SURFACTANTS
VISIBLE RADIATION
X-RAY DIFFRACTION
Zeta potential
title Zeta-potential and particle size studies of silver sulphide nanoparticles
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