A highly selective, fast-response and fluorescent turn on chemosensor for the detection of Cu2+ ions and its potential applications

In present report, a new BDA for Cu 2+ has been disclosed for the first time. The presence of Cu 2+ caused an obvious fluorescence enhancement at 407 nm upon excitation at 360 nm, which could be distinguished by the naked eye under a UV lamp. It was found to have acceptable detection limits (0.12 μM), high selectivity and reversibility/reusability. The photoluminescence measurement indicates that BDA with Cu 2+ presence, showed very strong blue emission bands with CIE chromaticity coordinates (0.1652, 0.0723). Besides, the designed probe has shown potential applications in the area of sample monitoring, photo-printing.