Йонообмінні властивості модифікованого силікагелю з закріпленими амідами полігексаметиленгуанідину та малеїнової або о-фталевої кислот
Amides of polyhexamethyleneguanidine and maleic or o-phthalic acids were chemically bound with the silica surface. Adsorption properties of synthesized modified silicas have been studied with respect to V(V)-, Cr(VI)-, Mo(VI)-, and W(VI)-containing anions. Both of adsorbents were found to show high...
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| Datum: | 2012 |
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| Hauptverfasser: | , , , |
| Format: | Artikel |
| Sprache: | Englisch |
| Veröffentlicht: |
Chuiko Institute of Surface Chemistry National Academy of Sciences of Ukraine
2012
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| Online Zugang: | https://www.cpts.com.ua/index.php/cpts/article/view/190 |
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| Назва журналу: | Chemistry, Physics and Technology of Surface |
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Chemistry, Physics and Technology of Surface| Zusammenfassung: | Amides of polyhexamethyleneguanidine and maleic or o-phthalic acids were chemically bound with the silica surface. Adsorption properties of synthesized modified silicas have been studied with respect to V(V)-, Cr(VI)-, Mo(VI)-, and W(VI)-containing anions. Both of adsorbents were found to show high adsorption activity in the acidic and slightly acidic media. Kinetic parameters of the obtained composites are closely similar to a polymeric adsorbent. Reduction of Mo(VI) and Cr(VI) ions was detected at adsorption on silica with bound amide of polyhexamethyleneguanidine and o-phthalic acid. The investigation demonstrates the possibility of the quantitative determination of microamounts of the studied metals in the adsorbent phase using the X-ray-fluorescence analysis after extraction of anions from a solution. |
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