Highly selective and sensitive colorimetric chemosensor based on tricarboyanine for detection of Ag+ in industrial wastewater / Xiaolong Zeng in JOURNAL OF LEATHER SCIENCE AND ENGINEERING, Vol. 2 (Année 2020)  

[article]  inJOURNAL OF LEATHER SCIENCE AND ENGINEERING > Vol. 2 (Année 2020) . - 11 p. Titre : Highly selective and sensitive colorimetric chemosensor based on tricarboyanine for detection of Ag+ in industrial wastewater Type de document : texte imprimé Auteurs : Xiaolong Zeng, Auteur ; Xuezhao Li, Auteur ; Wen Sun, Auteur Année de publication : 2020 Article en page(s) : 11 p. Note générale : Bibliogr. Langues : Anglais (eng) Catégories : Argent Capteurs chimiques Eaux usées -- Analyse Fluorescence Ions Ions métalliques Index. décimale : 631.7 Conservation des eaux Résumé : An efficient fluorescent probe 1 based on tricarbocyanine derivative was designed and synthesized, which can detect Ag+ in real industrial wastewater. UV-Vis absorption and fluorescent emission spectra of probe 1 were carried out and indicated this probe can bind Ag+ via complexation reaction, then leading to a remarkable color change from blue to light red. Furthermore, probe 1 showed high sensitive performance and excellent selectivity toward Ag+ over other common metal ions in neutral pH. The sensing mechanism was proposed and further confirmed by 1H NMR, which demonstrate analyte-induced destruction of the π-electron system could be shorten by the disruption of the pull-push π-conjugation system in probe 1. Moreover, a test strip was prepared by filter paper immersing in probe 1 solution, which further provide its potential application for trace Ag+ detection in real industrial wastewater. Note de contenu : - EXPERIMENTAL METHODS : Materials and reagents - Instrumentations - Synthesis - Measurement method - RESULTS AND DISCUSSION : Construction and characterization of intermediate and probe 1 - Fluorescence and UV-Vis spectral response of probe 1 to Ag+ - The selectivity to various metal ion as well as common anion and pH effect of probe 1 - Investigation of binding mechanism - Preliminary application for preparing test strips and applicability for real wastewater samples - Table 1 : Determination of Ag+ from real wastewater samples DOI : https://doi.org/10.1186/s42825-020-00031-2 En ligne : https://link.springer.com/content/pdf/10.1186/s42825-020-00031-2.pdf Format de la ressource électronique : Pdf Permalink : https://e-campus.itech.fr/pmb/opac_css/index.php?lvl=notice_display&id=37450 [article]

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