Green Synthesis of Copper Oxide Nanoparticles and its Applications - A Review

Engineered nanoparticles (ENPs) are particles with distinct properties that have been used for various applications, including biomedicine, agriculture, and industry. Copper oxide nanoparticles (CuO NPs) are ENPs widely used in multiple applications. Several potential applications of copper oxide nanoparticles (CuO NPs) have recently been identified, including gas sensors, waste treatment, food preservation, high-temperature superconductors, field emission emitters, and agriculture. CuO NPs have demonstrated distinct anticancer, antimicrobial, and antioxidant efficacy, making them a promising tool for biomedical applications. Copper oxide nanoparticles are more critical than other nanoparticles because of their exceptional catalytic, mechanical, magnetic, electric, and thermal properties. Copper oxide nanoparticles have applications in catalysis, sensors, dye degradation, fungicidal and nematicidal treatment, and agricultural, industrial, environmental, and medical fields. Furthermore, the synthesis technique is critical for the properties of the final nanosystem because it controls the size and morphology of the nanoparticles. As a result, the various synthesis methods of CuO Nps and their multiple applications in the respective field are briefly discussed in this review.