| Titre : |
An effective colorimetric sensor for detecting Cu2+ based on benzothiazole moiety |
| Type de document : |
texte imprimé |
| Auteurs : |
Boeon suh, Auteur ; Donghwan Choe, Auteur ; Cheal Kim, Auteur |
| Année de publication : |
2021 |
| Article en page(s) : |
p. 512-519 |
| Note générale : |
Bibliogr. |
| Langues : |
Anglais (eng) |
| Catégories : |
Capteurs (technologie)
Colorimétrie
Composés organiques -- Synthèse
Ions cuivre
|
| Index. décimale : |
667.3 Teinture et impression des tissus |
| Résumé : |
An effective colorimetric chemosensor, 2,4-dichloro-6-((E)-(((Z)-3-methylbenzo[d]thiazol-2(3H)-ylidene)hydrazono)methyl)phenol (HMD), was synthesised for Cu2+ detection. HMD with benzothiazole moiety showed a large bathochromic shift (153 nm) and a definite colour change for Cu2+. HMD could detect Cu2+ down to 0.47 μmol/L in the solution phase and could clearly distinguish it from other metal ions, even in the test strip. The binding mode between HMD and Cu2+ was determined to be 1:1 using Job plot and electrospray ionisation mass spectrometry. The sensing mechanism of HMD for Cu2+ was illustrated as the combination of metal-to-ligand charge transfer and intramolecular charge transfer via theoretical calculation. |
| Note de contenu : |
- EXPERIMENTAL : Materials and equipment - Synthesis of sensor HMD - Ultraviolet-visible selectivity - UV-vis titrations - Job plot - Competitive tests - 1H NMR titration - Colorimetric strips - Calculations for HMD and HMD-Cu2+
- RESULTS AND DISCUSSION : Colorimetric examinations of HMD towards Cu2° - Theoretical calculations of HMD and HMD-Cu2+ |
| DOI : |
https://doi.org/10.1111/cote.12548 |
| En ligne : |
https://onlinelibrary.wiley.com/doi/epdf/10.1111/cote.12548 |
| Format de la ressource électronique : |
Pdf |
| Permalink : |
https://e-campus.itech.fr/pmb/opac_css/index.php?lvl=notice_display&id=36508 |
in COLORATION TECHNOLOGY > Vol. 137, N° 5 (10/2021) . - p. 512-519
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