In Situ Synthesis of Luminescent CdSe Quantum Dots Embedded in Cd(II) Metallohydrogels: A Hybrid Material for Selective and Naked-Eye Sensing of Hg22+ Ions DOI
Sougata Sarkar, Pradip K. Maji, Tarak Nath Das

et al.

Inorganic Chemistry, Journal Year: 2025, Volume and Issue: unknown

Published: April 9, 2025

In situ synthesis and stabilization of quantum dots (QDs) with unique features toward environmental remediation is an area current interest. Our present study has addressed the spontaneous formation a metallohydrogel Cd(II) mixed ligand system (sodium azide 4,5-dicyanoimidazole). The gelation was highly selective to all three components only achieved when were together. Impact different pure solvent systems on metallogelation also studied. Spontaneous high-yield growth fibrous bundled nanostructures, majorly resulting from metal-ligand coordination in association solvent-anticipated hydrogen-bonding interactions, are observed. overall gel integrity corresponding nanostructure exhibit stimulus-responsive behavior various external stimuli. pristine metallogel then explored as scaffold for fabrication CdSe QD) which remain fastened fibers. QD-tethered luminescent nature where emission could be easily tuned. Finally, this hybrid [i.e., CdSe-tethered metallohydrogel] successfully employed material naked-eye sensing toxic heavy metal ion Hg22+ down micromolar level. This thus highlights potential such metallo-supramolecular hydrogel photophysics remediation.

Language: Английский

In Situ Synthesis of Luminescent CdSe Quantum Dots Embedded in Cd(II) Metallohydrogels: A Hybrid Material for Selective and Naked-Eye Sensing of Hg22+ Ions DOI
Sougata Sarkar, Pradip K. Maji, Tarak Nath Das

et al.

Inorganic Chemistry, Journal Year: 2025, Volume and Issue: unknown

Published: April 9, 2025

In situ synthesis and stabilization of quantum dots (QDs) with unique features toward environmental remediation is an area current interest. Our present study has addressed the spontaneous formation a metallohydrogel Cd(II) mixed ligand system (sodium azide 4,5-dicyanoimidazole). The gelation was highly selective to all three components only achieved when were together. Impact different pure solvent systems on metallogelation also studied. Spontaneous high-yield growth fibrous bundled nanostructures, majorly resulting from metal-ligand coordination in association solvent-anticipated hydrogen-bonding interactions, are observed. overall gel integrity corresponding nanostructure exhibit stimulus-responsive behavior various external stimuli. pristine metallogel then explored as scaffold for fabrication CdSe QD) which remain fastened fibers. QD-tethered luminescent nature where emission could be easily tuned. Finally, this hybrid [i.e., CdSe-tethered metallohydrogel] successfully employed material naked-eye sensing toxic heavy metal ion Hg22+ down micromolar level. This thus highlights potential such metallo-supramolecular hydrogel photophysics remediation.

Language: Английский

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