تفاصيل الوثيقة

نوع الوثيقة : مقال في مجلة دورية 
عنوان الوثيقة :
Preparation and characterization of silver nanoparticles by chemical reduction method
Preparation and characterization of silver nanoparticles by chemical reduction method
 
الموضوع : الكيمياء 
لغة الوثيقة : الانجليزية 
المستخلص : Silver nanoparticles were prepared by the reduction of AgNO3 with aniline in dilute aqueous solutions containing cetyltrimethlyammonium bromide, CTAB. Nanoparticles growth was assessed by UV–vis spectroscopy and the average particle size and the size distribution were determined from transmission electron microscopy, TEM. As the reaction proceeds, a typical plasmon absorption band at 390–450 nm appears for the silver nanoparticles and the intensities increase with the time. Effects of [aniline], [CTAB] and [Ag+] on the particle formation rate were analyzed. The apparent rate constants for the formation of silver nanoparticles first increased until it reached a maximum then decreased with [aniline]. TEM photographs indicate that the silver sol consist of well dispersed agglomerates of spherical shape nanoparticles with particle size range from 10 to 30 nm. Aniline concentrations have no significant effect on the shape, size and the size distribution of Ag-nanoparticles. Aniline acts as a reducing as well as adsorbing agent in the preparation of roughly spherical, agglomerated and face-centered-cubic silver nanoparticles. 
ردمد : 0927-7765 
اسم الدورية : Colloids and Surfaces B: Biointerfaces 
المجلد : 82 
العدد : 2 
سنة النشر : 1432 هـ
2011 م 
نوع المقالة : مقالة علمية 
تاريخ الاضافة على الموقع : Wednesday, December 1, 2010 

الباحثون

اسم الباحث (عربي)اسم الباحث (انجليزي)نوع الباحثالمرتبة العلميةالبريد الالكتروني
زهير خانKhan, Zaheer باحثدكتوراهdrkhanchem@yahoo.co.in
شعيل أحمد الثبيتيALTabiti, Shaeel Ahmedباحثدكتوراهsthabaiti@kau.edu.sa
عبدالله يوسف عبيدObaid, Abdullah Yousifباحثدكتوراهaobaid@kau.edu.sa
عبدالرحمن عبيد اليوبيAl-Youbi, Abdulrahman Obaidباحثدكتوراهvpaa@kau.edu.sa

الملفات

اسم الملفالنوعالوصف
 28041.pdf pdfPreparation and characterization of silver nanoparticles by chemical reduction method

الرجوع إلى صفحة الأبحاث