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- Title
The Use of Metal Phosphonates in the Removal of Anti Infective Organic Molecules by Adsorption Process.
- Authors
Jayswal, Amit; Chudasama, Uma
- Abstract
A novel hybrid ion exchange material of the class of metal (IV) phosphonate, zirconium -- hydroxy ethylidene diphosphonate [ZrHEDP] has been synthesized by sol-gel method. The material has been characterized for elemental analysis (ICP-AES), thermal analysis (TGA, DSC), FT-IR and X-ray diffraction studies. Chemical resistivity of the material in various media -- acids, bases and organic solvents has been assessed. The Na+ ion-exchange capacity (IEC) of the material has been determined and effect of heating on IEC studied. The sorption behaviour of medicinal dyes Acriflavin (AF) and Brilliant Green (BG) towards ZrHEDP has been studied at 313 K, 323 K and 333 K and kinetic and thermodynamic parameters evaluated. Adsorption isotherms [Langmuir and Fruendlich], breakthrough capacity and elution behaviour of dyes have also been studied. Sorption affinity of medicinal dyes towards ZrHEDP is found to be BG > AF.
- Subjects
PHOSPHONATES; ADSORPTION (Chemistry); ZIRCONIUM; ION exchange (Chemistry); DIPHOSPHONATES
- Publication
Acta Chimica Slovenica, 2007, Vol 54, Issue 3, p654
- ISSN
1318-0207
- Publication type
Article