Highly selective and sensitive colorimetric chemosensor based on tricarboyanine for detection of Ag+ in industrial wastewater

Abstract

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 1 H 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.

A GSH-Activatable Theranostic Prodrug Based on Photoinduced Electron Transfer for Cancer Fluorescence Imaging and Therapy

“…Trimethylindolenine was used as the starting compound, which reacted with iodoethane via an N alkylation reaction. This intermediate 1 underwent a condensation reaction with compound 2 [22], followed by the decoration of the CyCl intermediate with 3-nitrophenol, nitro reduction, and cyclization to produce HCy. Fe-SS-OH was synthesized through condensation between 2,2 -dithiodiethanol and ferrocene derivate.…”

A Novel Source of Radicals from UV/Dichloroisocyanurate for Surpassing Abatement of Emerging Contaminants Versus Conventional UV/Chlor(am)ine Processes

“…1 The discharge of unused and expired drugs, industrial waste, hospital waste, and landfill leachate in daily life results in the residue of ECs in many aquatic environments at amounts ranging from ng/L to μg/L. 2,3 The ECs thus need to be efficiently removed in water treatment.…”

“…Emerging contaminants (ECs) have drawn attention because of their potent environmental retention, bioaccumulation, and potential risk of inducing detrimental ecological and health consequences on both wildlife and humans . The discharge of unused and expired drugs, industrial waste, hospital waste, and landfill leachate in daily life results in the residue of ECs in many aquatic environments at amounts ranging from ng/L to μg/L. , The ECs thus need to be efficiently removed in water treatment.…”

Water decontamination under high salinity using the TiO2 NT/PbO2–Cu electrochemical oxidation system: kinetics mechanism and DFT studies

“…To find alternatives that have good electrochemical oxidation performance with a less expensive cost for saline wastewater, especially sulfate-rich water treatment, makes sense. 64 Over recent years, titanium (Ti) material has been widely used in electrochemical systems for wastewater treatments owing to its stable physicochemical properties, environmental friendliness, and relatively low cost. Utilization of pure Ti as the anode could contribute to the generation of ROS for fast decontamination of wastewater, however, the quick formation of dense titanium oxide (TiO 2 ) films would rapidly increase electric resistance and deteriorate the electrochemical performance of pure Ti anode.…”