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http://hdl.handle.net/2080/3718
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DC Field | Value | Language |
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dc.contributor.author | Pattnayak, Samarjit | - |
dc.contributor.author | Sahoo, Ugrabadi | - |
dc.contributor.author | Choudhury, Shubhalaxmi | - |
dc.contributor.author | Hota, Garudadhwaj | - |
dc.date.accessioned | 2022-08-23T11:33:34Z | - |
dc.date.available | 2022-08-23T11:33:34Z | - |
dc.date.issued | 2022-08 | - |
dc.identifier.citation | Frontiers In Materials for Technological Applications(FIMTA),CSIR-IMMT, Bhubaneswar, 3-5 August 2022 | en_US |
dc.identifier.uri | http://hdl.handle.net/2080/3718 | - |
dc.description | Copyright belongs to proceeding publisher | en_US |
dc.description.abstract | Graphitic carbon nitride (gCN) quantum dots, in recent years, have captivated immense interest in the field of sensing due to their unique optical and electronic properties. Here, we present a facile synthesis of silver nanoparticles embedded sulfur doped gCN quantum dots (Ag-S-gCN QDs) from thiourea, trisodium citrate, and silver nitrate by a low-temperature thermal treatment. The synthesized Ag-S-gCN QDs, with an average size of 3.7 nm, emitted strong blue fluorescence with a high relative quantum yield of 36.5 %. They exhibited significant stability against photobleaching and high ionic strength. The aforementioned quantum dots, under optimal conditions, were employed for fast, sensitive, and selective sensing of Hg2+ ions in distilled water as well as real water samples. A static quenching mechanism was established from the average lifetime calculation via a time-resolved decay experiment. The presence of silver nanoparticles resulted in a redox reaction with Hg2+ ions via electron transfer from metallic Ag to Hg2+ ions. Moreover, the proposed sensor was anticipated to open up a new avenue for convenient, sensitive, and selective sensing of potentially hazardous Hg2+ ions with substantial results. | en_US |
dc.subject | Graphitic carbon nitride | en_US |
dc.subject | silver nanoparticles | en_US |
dc.subject | Nanosensor | en_US |
dc.subject | Hg2+ ions | en_US |
dc.subject | Static quenching | en_US |
dc.title | Silver Nanoparticles Embedded Sulfur Doped Graphitic Carbon Nitride Quantum Dots for Fluorescence Sensing of Mercury Ions in Aqueous Media | en_US |
dc.type | Presentation | en_US |
Appears in Collections: | Conference Papers |
Files in This Item:
File | Description | Size | Format | |
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2022_FIMTA_SPattnayak_Silver.pdf | Poster | 1.39 MB | Adobe PDF | View/Open |
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