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Fluorescence 'Turn-on' Dual Sensor for Selective Detection of Cd2+ and H2AsO4− in Water.
- Source :
- Journal of Fluorescence; Mar2023, Vol. 33 Issue 2, p517-526, 10p
- Publication Year :
- 2023
-
Abstract
- A multi responsive fluorescent probe, N',2-bis(E-4-(diethylamino)-2-hydroxybenzylidene)hydrazine-1-carbothiohydrazideV(H<subscript>2</subscript>L) has been synthesized through one step condensation method. Probe, H<subscript>2</subscript>L shows 'turn-on' dual sensing properties towards Cd<superscript>2+</superscript> and H<subscript>2</subscript>AsO<subscript>4</subscript><superscript>−</superscript> at two distinct wavelength. The probe (H<subscript>2</subscript>L) is spectroscopically characterized and the chemo-sensing mechanism has been demonstrated through <superscript>1</superscript>H NMR, absorption, steady state and time resolved emission study. The most promising advantage of the probe is its application in the one-pot detection of Cd<superscript>2+</superscript> (λ<subscript>em</subscript> = 462 nm) and H<subscript>2</subscript>AsO<subscript>4</subscript><superscript>−</superscript>(λ<subscript>em</subscript> = 492 nm) where intense emission appears at two different wavelengths and the observed limit of detection (LOD) of H<subscript>2</subscript>L towards Cd<superscript>2+</superscript> and H<subscript>2</subscript>AsO<subscript>4</subscript><superscript>−</superscript> are 2.67 × 10<superscript>–8</superscript> M and 5.14 × 10<superscript>–6</superscript> M respectively. Further the 'turn-on' emission property of H<subscript>2</subscript>L towards Cd<superscript>2+</superscript> is applied to construct INHIBIT logic gate. [ABSTRACT FROM AUTHOR]
Details
- Language :
- English
- ISSN :
- 10530509
- Volume :
- 33
- Issue :
- 2
- Database :
- Complementary Index
- Journal :
- Journal of Fluorescence
- Publication Type :
- Academic Journal
- Accession number :
- 162076572
- Full Text :
- https://doi.org/10.1007/s10895-022-03091-1