Fluorescence Based Comparative Sensing Behavior of the Nano-Composites of SiO<sub>2</sub> and TiO<sub>2</sub> towards Toxic Hg<sup>2+</sup> Ions
We have synthesized sulfonamide based nano-composites of SiO<sub>2</sub> and TiO<sub>2</sub> for selective and sensitive determination of toxic metal ion Hg<sup>2+</sup> in aqueous medium. Nano-composites <b>(11)</b> and <b>(12)</b> were mo...
| Main Authors: | , |
|---|---|
| Format: | Article |
| Language: | English |
| Published: |
MDPI AG
2021-11-01
|
| Series: | Nanomaterials |
| Subjects: | |
| Online Access: | https://www.mdpi.com/2079-4991/11/11/3082 |
| _version_ | 1797509006819852288 |
|---|---|
| author | Ekta Divya Utreja |
| author_facet | Ekta Divya Utreja |
| author_sort | Ekta |
| collection | DOAJ |
| description | We have synthesized sulfonamide based nano-composites of SiO<sub>2</sub> and TiO<sub>2</sub> for selective and sensitive determination of toxic metal ion Hg<sup>2+</sup> in aqueous medium. Nano-composites <b>(11)</b> and <b>(12)</b> were morphologically characterized with FT-IR, solid state NMR, UV-vis, FE SEM, TEM, EDX, BET, pXRD and elemental analysis. The comparative sensing behavior, pH effect and sensor concentrations were carried out with fluorescence signaling on spectrofluorometer and nano-composites <b>(11)</b> and <b>(12)</b>, both were evaluated as “turn-on” fluorescence detector for the toxic Hg<sup>2+</sup> ions. The LODs were calculated to be 41.2 and 18.8 nM, respectively of nano-composites <b>(11)</b> and <b>(12)</b>. The detection limit of TiO<sub>2</sub> based nano-composites was found comparatively lower than the SiO<sub>2</sub> based nano-composites. |
| first_indexed | 2024-03-10T05:12:51Z |
| format | Article |
| id | doaj.art-64a4db65635147958821e71d27ab7652 |
| institution | Directory Open Access Journal |
| issn | 2079-4991 |
| language | English |
| last_indexed | 2024-03-10T05:12:51Z |
| publishDate | 2021-11-01 |
| publisher | MDPI AG |
| record_format | Article |
| series | Nanomaterials |
| spelling | doaj.art-64a4db65635147958821e71d27ab76522023-11-23T00:42:54ZengMDPI AGNanomaterials2079-49912021-11-011111308210.3390/nano11113082Fluorescence Based Comparative Sensing Behavior of the Nano-Composites of SiO<sub>2</sub> and TiO<sub>2</sub> towards Toxic Hg<sup>2+</sup> IonsEkta0Divya Utreja1Department of Chemistry, Punjab Agricultural University, Ludhiana 141004, IndiaDepartment of Chemistry, Punjab Agricultural University, Ludhiana 141004, IndiaWe have synthesized sulfonamide based nano-composites of SiO<sub>2</sub> and TiO<sub>2</sub> for selective and sensitive determination of toxic metal ion Hg<sup>2+</sup> in aqueous medium. Nano-composites <b>(11)</b> and <b>(12)</b> were morphologically characterized with FT-IR, solid state NMR, UV-vis, FE SEM, TEM, EDX, BET, pXRD and elemental analysis. The comparative sensing behavior, pH effect and sensor concentrations were carried out with fluorescence signaling on spectrofluorometer and nano-composites <b>(11)</b> and <b>(12)</b>, both were evaluated as “turn-on” fluorescence detector for the toxic Hg<sup>2+</sup> ions. The LODs were calculated to be 41.2 and 18.8 nM, respectively of nano-composites <b>(11)</b> and <b>(12)</b>. The detection limit of TiO<sub>2</sub> based nano-composites was found comparatively lower than the SiO<sub>2</sub> based nano-composites.https://www.mdpi.com/2079-4991/11/11/3082solid-state lightingoptical sensingoptical nanomaterialsHg<sup>2+</sup> ions |
| spellingShingle | Ekta Divya Utreja Fluorescence Based Comparative Sensing Behavior of the Nano-Composites of SiO<sub>2</sub> and TiO<sub>2</sub> towards Toxic Hg<sup>2+</sup> Ions Nanomaterials solid-state lighting optical sensing optical nanomaterials Hg<sup>2+</sup> ions |
| title | Fluorescence Based Comparative Sensing Behavior of the Nano-Composites of SiO<sub>2</sub> and TiO<sub>2</sub> towards Toxic Hg<sup>2+</sup> Ions |
| title_full | Fluorescence Based Comparative Sensing Behavior of the Nano-Composites of SiO<sub>2</sub> and TiO<sub>2</sub> towards Toxic Hg<sup>2+</sup> Ions |
| title_fullStr | Fluorescence Based Comparative Sensing Behavior of the Nano-Composites of SiO<sub>2</sub> and TiO<sub>2</sub> towards Toxic Hg<sup>2+</sup> Ions |
| title_full_unstemmed | Fluorescence Based Comparative Sensing Behavior of the Nano-Composites of SiO<sub>2</sub> and TiO<sub>2</sub> towards Toxic Hg<sup>2+</sup> Ions |
| title_short | Fluorescence Based Comparative Sensing Behavior of the Nano-Composites of SiO<sub>2</sub> and TiO<sub>2</sub> towards Toxic Hg<sup>2+</sup> Ions |
| title_sort | fluorescence based comparative sensing behavior of the nano composites of sio sub 2 sub and tio sub 2 sub towards toxic hg sup 2 sup ions |
| topic | solid-state lighting optical sensing optical nanomaterials Hg<sup>2+</sup> ions |
| url | https://www.mdpi.com/2079-4991/11/11/3082 |
| work_keys_str_mv | AT ekta fluorescencebasedcomparativesensingbehaviorofthenanocompositesofsiosub2subandtiosub2subtowardstoxichgsup2supions AT divyautreja fluorescencebasedcomparativesensingbehaviorofthenanocompositesofsiosub2subandtiosub2subtowardstoxichgsup2supions |