Multi-functional copper oxide nanoparticles synthesized using Lagerstroemia indica leaf extracts and their...

Area of Science:

• Nanotechnology
• Materials Science
• Green Chemistry

Background:

• Developing multifunctional nanomaterials via sustainable methods is crucial.
• Biogenic synthesis offers an environmentally friendly route for nanoparticle production.
• Copper oxide nanoparticles (CuO NPs) possess diverse potential applications.

Purpose of the Study:

• To synthesize multifunctional copper oxide nanoparticles (LI-CuO NPs) using a green approach with *Lagerstroemia indica* leaf extract.
• To characterize the synthesized LI-CuO NPs and evaluate their antibacterial, antioxidant, seed priming, and photocatalytic properties.
• To explore the potential of LI-CuO NPs in organic dye degradation and wastewater treatment.

Main Methods:

• Green synthesis of LI-CuO NPs using plant extract.
• Characterization via UV-vis, DLS, XRD, SEM-EDX, TEM, XPS, and FT-IR.
• Evaluation of antibacterial, antioxidant, seed germination, and photocatalytic activities.

Main Results:

• Synthesized LI-CuO NPs exhibited characteristic surface plasmon resonance, with an average size of 36 nm (XRD) and 93.5 nm (DLS).
• LI-CuO NPs demonstrated significant antibacterial activity against Gram-negative and Gram-positive bacteria.
• High antioxidant radical scavenging (97.6%), enhanced seed germination, and excellent photocatalytic degradation (97.6%) of organic dyes and wastewater treatment (95.6% turbidity reduction) were observed.

Conclusions:

• A facile and eco-friendly method for synthesizing multifunctional LI-CuO NPs was developed.
• The synthesized LI-CuO NPs exhibit broad applicability in biomedicine, agriculture, and environmental remediation.
• This biogenic approach offers a sustainable pathway for producing advanced nanomaterials.