In situ immobilization on the silica gel surface and adsorption capacity of poly[4-methacroyloxy-(4′-carboxy-2′-nitro)-azobenzene] on toxic metals ions
| Autor: | Irina Savchenko, Lidiya Ol’khovik, Y. Polonska, O. Kychkyruk, Dariusz Sternik, E. S. Yanovska |
|---|---|
| Rok vydání: | 2018 |
| Předmět: |
chemistry.chemical_classification
Thermogravimetric analysis Silica gel Composite number Sorption 02 engineering and technology General Chemistry Polymer 010402 general chemistry 021001 nanoscience & nanotechnology Condensed Matter Physics 01 natural sciences 0104 chemical sciences chemistry.chemical_compound Adsorption Azobenzene chemistry Nitro General Materials Science 0210 nano-technology Nuclear chemistry |
| Zdroj: | Molecular Crystals and Liquid Crystals. 671:164-174 |
| ISSN: | 1563-5287 1542-1406 |
| DOI: | 10.1080/15421406.2018.1542099 |
| Popis: | A new organo-mineral composite material has been synthesized by in situ immobilization of poly[(4-methacroyloxy-(4′-carboxy-2′-nitro)azobenzene on the silicagel surface. As a result of thermogravimetric analysis and DSC-MS analysis it has been found that the composition of synthesized composite includes 10,1 wt. % of polymer. It has been found that the synthesized composite exhibits the sorption ability in terms of microquantities of Cu (II), Cd (II), Pb (II) and Fe (III) ions in a neutral aqueous medium. The maximum degree of sorption of ions Cu (II), Pb (II) and Fe (III) is achieved during the first minutes of contact, and for Cd (II) ions the equilibrium is established within a day. The sorption capacity of silica gel as a result of modification by this polymer increases with respect to Cu (II) ions more than 14 times, with respect to Pb (II) ions - 5 times. |
| Databáze: | OpenAIRE |
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