The bifunctionality of silica gel modified with Congo red

• Authors: Joanna Kurczewska , Grzegorz Schroeder
• Languages of publication: EN

Abstracts

EN

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. [...]

Keywords

EN

Silica gel; Congo red; pH indicator; Solid-phase extraction

• Publisher: De Gruyter Open
• Journal: Open Chemistry
• Year: 2011
• Volume: 9
• Issue: 1
• Pages: 41-46

Dates

published

1 - 2 - 2011

online

16 - 12 - 2010

Contributors

author

Joanna Kurczewska

• Faculty of Chemistry, Adam Mickiewicz University, 60-780, Poznań, Poland

author

Grzegorz Schroeder

• Faculty of Chemistry, Adam Mickiewicz University, 60-780, Poznań, Poland

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Identifiers

DOI

10.2478/s11532-010-0131-y