سال انتشار: ۱۳۸۵
محل انتشار: اولین کنفرانس فناوری نانو در محیط زیست
تعداد صفحات: ۱۱
Alizadeh – Chemistry Department, Razi University , Kermanshah , Nanosceince and Nanotechnology Researcg Center (NNRC), Razi University , Kermanshah
Fallah – Chemistry Department, Bu-Ali Sina University , Hamedan, Iran
Yamini – Chemistry Department , Basic Science Faculty , Tarbiat Modarres University, Tehran, Iran
The obtained preliminary results from FTIR , DSC, TGA and XRD experiments, reveled that based on the base-catalyzed treatment of Si (Cl)4 with ethanol at room temperature followed a hydroxylation and condensation of the mixture in scCO2; an amorphous and organic-free silica aerogel was obtained. This method provides a very efficient low temperature processing route for SiO2 glass manufacturing in a clean, environmentally friendly and mild reaction conditions. In this paper, we will show our preliminary results and data. More experiments in this field are under investigation in our laboratories.