Document Details

Document Type : Article In Journal 
Document Title :
Studies on the kinetics of growth of silver nanoparticles in different surfactant solutions
Studies on the kinetics of growth of silver nanoparticles in different surfactant solutions
 
Subject : Chemistry 
Document Language : English 
Abstract : Silver nanoparticles were prepared in aqueous silver nitrate solution using hydrazine as reducing agents in presence of two ionic surfactants (cetyltrimethylammonium bromide; CTAB and sodium dodecyl sulfate; SDS) and one non-ionic surfactant (Triton X-100). The reaction rate was determined spectrophotometrically. The nature of the head group of these surfactants is responsible for the formation of stable, yellow and transparent silver sol. For a certain reaction time, i.e., 20 min, the absorbance of reaction mixture first increased until it reached a maximum, then decreased with [hydrazine]. The reaction follows first-order kinetics with respect to each in [hydrazine] and [Ag+]. The results suggest formation of a complex between silver(I) and hydrazine, decomposes in a rate-determining step, leading in the formation of a free radical, which again reacts with the silver(I) in a subsequent fast step to yield the products. The transmission electron microscopic (TEM) images show that CTAB stabilized silver nanoparticles are spherical and of uniform particle size, and the average particle size is about 15 nm. 
ISSN : 0927-7765 
Journal Name : Colloids and Surfaces B: Biointerfaces 
Volume : 73 
Issue Number : 2 
Publishing Year : 2009 AH
2009 AD 
Article Type : Article 
Added Date : Sunday, October 11, 2009 

Researchers

Researcher Name (Arabic)Researcher Name (English)Researcher TypeDr GradeEmail
ظهير خانZaheer KhanResearcherDoctoratedrkhanchem@yahoo.com
شعيل أحمد عبدالله الثبيتيAl-Thabaiti, S.AResearcherDoctoratesthabiti@hotmail.com
السيدالبدوي حسيني سليم المسلميEl-sayed El-Badawy El-MossalamyResearcherDoctoratesbdmina@yahoo.com
عبدالله يوسف عبدالله عبيدAbdullah Yousif ObaidResearcherDoctorateaobaid@kau.edu.sa

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