Nanoscale supramolecular complex made of copper cyanide and a phenanthroline ligand inlaid with titanium oxide nanoparticles as effective catalysts and sensors

Abstract

Utilizing ultrasonic vibrations, the nano-supramolecular complex [(phen)₃Cu₂(CN)₃ (H₂O)₅] (NSC1) was obtained. NSC1 was inlaid with nano-titanium oxide to create composite (TiO₂/NSC1) nanoparticles using ultrasonic waves. ICP, XRPD, SEM, TEM, TGA, and other spectroscopic methods were applied to characterize the composite. Both NSC1 and TiO₂/NSC1 function as heterogeneous catalysts against methylene blue (MB) and brilliant green (BG) dyes, which were assessed and compared. When H₂O₂ is present, it has an effective capacity to degrade (MB) and (BG) dyes. However, the nanocomposite exhibits exceptional degradation efficiency using UV or ultrasonic waves under a variety of conditions. To clarify the mechanisms of mineralization, scavenger techniques, the terephthalic acid disodium salt photoluminescence technique and spectrophotometric titration were used. The TiO₂/NSC1 nanocomposite's photoluminescence property was analyzed and estimated. So, the composite can ability to operate as a highly efficient selective luminous sensor, which showed outstanding detection and highly effective quenching of the nanocomposite's photofluorescence towards nitrobenzene, Na⁺, and Mn²⁺ ions.