Green synthesis of nano mixed metal oxides is very important due to their applications in various fields. In the present work nano copper oxide-nickel oxide mixed oxides (CuO–NiO MOs) were synthesized using an environmentally friendly aqueous extract of Mimusops elengi leaf. The synthesized mixed metal oxides were characterized by using UV–visible spectroscopy, X-ray diffraction (XRD), Transmission electron microscopy (TEM), Scanning electron microscopy–energy dispersive spectroscopy (SEM–EDS), and Fourier-transform infrared spectroscopy (FTIR). TEM and SEM showed that the mixed metal oxides formed as clusters and the nanoparticles had an average size of 30 nm. UV–Vis spectroscopy and FTIR spectroscopy authorized that the phytochemicals of leaf extract acted as capping agents for the synthesis of the mixed metal oxides. The extract of M. elengi leaf exhibited a significant role in the synthesis of mixed metal oxides and that also served as a reducing agent. Nano CuO–NiO MOs showed good antibacterial activity against Bacillus subtilis and Escherichia coli. Antimicrobial activity studies offered that the nano CuO–NiO MOs can be used in the medical field.

纳米混合金属氧化物的绿色合成因其在各个领域的应用而非常重要。在本工作中，使用环保的Mimusops elengi水提取物合成了纳米氧化铜-氧化镍混合氧化物（CuO-NiO MOs）。叶。使用紫外可见光谱，X射线衍射（XRD），透射电子显微镜（TEM），扫描电子显微镜-能量分散光谱（SEM-EDS）和傅里叶变换红外光谱（FTIR）对合成的混合金属氧化物进行表征）。TEM和SEM表明，混合的金属氧化物形成簇并且纳米颗粒具有30nm的平均尺寸。UV-Vis光谱和FTIR光谱授权叶提取物的植物化学物质作为混合金属氧化物合成的封端剂。e叶提取物在混合金属氧化物的合成中显示出重要作用，并且还用作还原剂。纳米CuO–NiO MOs对枯草芽孢杆菌和大肠杆菌。抗菌活性研究表明，纳米CuO–NiO MOs可用于医疗领域。