Abstract
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•Various wt.% of Cu2+ doped ZnO were synthesized by the thermal spreading technique.•The in-depth structural details have been studied through the Rietveld refinement method.•Blue-Green Emission of synthesized materials was obtained using PL analysis.•Chromaticity diagram clearly confirmed the color purity of Blue-Green phosphor.•The organic dye Amaranth has been completely degraded by the prepared materials.
In this work “solve two problems with one single action” strategy was implemented to degrade industrial dye Amaranth (AM) and enhanced blue-green emission for optoelectronics applications in Cu2+ doped ZnO materials. The different concentrations (weight (wt) %) of Cu2+ doped ZnO materials have been synthesized by the thermal spreading method. The as-prepared ZnO and Cu2+ doped ZnO materials have been effectively confirmed by various spectroscopic methods. The crystalline phase, surface morphology, compositions of elements and energy bandgap were systematically studied by P-XRD, SEM, EDS and UV–Vis spectroscopic analysis, respectively. With the doping concentration, 18 wt% of Cu2+ doped ZnO revealed outstanding photocatalytic performance to the degradation of Amaranth under visible light irradiation with an efficacy of about 97%. Likewise, 18 wt% of Cu2+ doped ZnO shows strong blue-green emission at around 495 nm owing to internal oxygen vacancies. The present work gives some clue; it may be used as a proficient photocatalyst to degrade dyes and luminescent material for optoelectronics applications.