A Fluorescent Chemosensor Based on Functionalized Nanoporous Silica (SBA-15 SBA-IC-MN) for Detection of Hg2+ in Aqueous Media
A highly ordered mesoporous silica SBA-15 was modified by indole-3-carbaldehyde followed by covalent grafting of malononitrile to prepare organic–inorganic hybrid nanomaterial (SBA-IC-MN). The characterization of the product presented the successful attachment of organic moieties at the surface of S...
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Veröffentlicht in: | Arabian Journal for Science and Engineering 2022, Vol.47 (1), p.397-406 |
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Format: | Artikel |
Sprache: | eng |
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Zusammenfassung: | A highly ordered mesoporous silica SBA-15 was modified by indole-3-carbaldehyde followed by covalent grafting of malononitrile to prepare organic–inorganic hybrid nanomaterial (SBA-IC-MN). The characterization of the product presented the successful attachment of organic moieties at the surface of SBA-15 and the preservation of the original structure of SBA-15. The optical sensing ability of SBA-IC-MN was examined via different metal ions in H
2
O medium by fluorescence spectroscopy. SBA-IC-MN can be considered as highly selective and sensitive toward Hg
2+
ions with a detection limit of 3.26 × 10
–6
. Further, excellent linearity was obtained between the fluorescence intensity of SBA-IC-MN and the concentration of Hg
2+
ion. |
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ISSN: | 2193-567X 1319-8025 2191-4281 |
DOI: | 10.1007/s13369-021-05518-6 |