A novel high performance nano chemosensor for copper (II) ion based on an ultrasound-assisted synthesized diphenylamine-based Schiff base: Design, fabrication and density functional theory calculations.

A novel high selective colorimetric chemosensor was introduced based on a nano diphenyl-based Schiff base (HL), 2,2'-((1E,1'E)-(((hexylazanediyl)bis(4,1-phenylene))bis(methanylylidene))bis(azanylylidene))bis(4-methylphenol) that synthesized using sonochemical method. HL was characterized by FT-IR, MS, TGA, H NMR, C NMR, SEM and elemental analysis techniques, then fabricated as the portable strips for sensing copper (II) ions in aqueous media. The binding interaction between HL and various metal ions was investigated by UV-Vis spectroscopic that showed favorable coordination toward Cu ion.