Document Details

Document Type : Article In Journal 
Document Title :
Effect of poly(Vinyl alcohol) on the size, shape, and rate of silver nanoparticles formation
Effect of poly(Vinyl alcohol) on the size, shape, and rate of silver nanoparticles formation
 
Subject : Chemistry 
Document Language : English 
Abstract : The kinetics of cetyltrimethylammonium bromide (CTAB) stabilized silver nanop articles have been studied spectrophotometrically at 425 nm (λ max of silver sol) in the absence and presence of water soluble polymer (poly(vinyl alcohol); PVA). Transmission electron microscopy (TEM), ultraviolet-visible spectroscopy, and viscosity measurements were used to determine the size, shape, and the size distribution of the silver nanoparticles. The reaction follows the same behavior with respect to {pipe}CTAB{pipe}, [tri-sodium citrate], and [Ag +] in both the media indicating the silver nonoparticles were formed through the same reaction path. The sigmoid nature of the kinetic curves suggests an autocatalytic path in the growth of nanoparticles. The reaction rate is increased by increasing {pipe}CTAB{pipe}. The presence of PVA inhibits nucleation and retards the rate of particle growth, absorbance and size of the particles. Polymer-surfactant interactions were analyzed based on the viscosity of the reaction mixture. 
ISSN : 0193-2691 
Journal Name : Journal of Dispersion Science and Technology 
Volume : 32 
Issue Number : 11 
Publishing Year : 1432 AH
2011 AD 
Article Type : Article 
Added Date : Saturday, February 11, 2012 

Researchers

Researcher Name (Arabic)Researcher Name (English)Researcher TypeDr GradeEmail
ظهير خانKhan, Zaheer ResearcherDoctoratedrkhanchem@yahoo.co.in
فوزية محمد النويصرAl-Nowaiser, Fawziya MResearcherDoctoratefalnowaiser@kau.edu.sa

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