The bifunctionality of silica gel modified with Congo red |
| |
Authors: | Joanna Kurczewska Grzegorz Schroeder |
| |
Institution: | (1) Faculty of Chemistry, Adam Mickiewicz University, 60-780 Poznań, Poland |
| |
Abstract: | Silica gel was chemically modified with Congo red and characterized by Fourier transform infrared spectroscopy, elemental
and thermogravimetric analysis. The pH-sensitive immobilized Congo red retains the same properties as its solution counterpart
and could be applied as solid indicator. The functionalized silica gel was also employed to extract different cations from
water solutions. The concentration of cations extracted was determined by inductively coupled plasma optical emission spectrometry.
The solid support is able to selectively extract silver and copper from water solutions and retains its properties after treatment
with different organic and inorganic solvents.
![MediaObjects/11532_2010_131_Fig1_HTML.jpg](/content/1R6641X522110131/MediaObjects/11532_2010_131_Fig1_HTML.jpg) |
| |
Keywords: | |
本文献已被 SpringerLink 等数据库收录! |