Antimicrobial and Detoxification Study of Novel Luminescent CuO Nanoparticles Synthesized by White Garland Lily Leaves Extract

The novel luminescent copper oxide nanoparticles (CuONPs) were furnished by using white garland lily leaves extract. The method for this synthesis was economical, simple, environment friendly, and importantly followed green chemistry principles for the development of a proficient approach in the arena of biological applications and detoxification of industrial-grade toxic dye. The characterization study of CuONPs was done by UV–Visible, FT-IR, XRD, HRTEM, FESEM-EDAX, and PL spectra. The particle size (average) revealed by XRD, HRTEM, and FESEM analysis was 40 ± 0.5 nm. The O.D. around 300 nm in UV–Vis spectra established the effective synthesis of CuONPs while the peaks around 295 and 590 nm in PL spectra revealed its luminescence property. The novel CuONPs were verified against the selected bacterial and fungal strains. The CuONPs exhibited outstanding antibacterial activities versus E. coli and S. Pyogenus while having considerable antifungal activities against selected fungal strains. Moreover, the CuONPs were tested for photocatalytic degradation proficiency against methylene blue (MB) and found effective even after three cycles (100% removal in 70 min). The photocatalytic efficacy and its high reusability in consort with great adaptability of economic green synthesis favor the practice of novel CuONPs as a hopeful choice for the detoxification of natural resources poisoned with industrial dye.