In this research, CuO nanostructures were successfully synthesized via a short-time and low-temperature hydrothermal route without a calcination step. The synthesis of these nanoparticles was accomplished through a hydrothermal reaction of cupric nitrate and sodium hydroxide with different concentrations of cetyltrimethylammonium bromide (CTAB) as the chemical assistant agents. The as-prepared products were characterized by X-ray diffraction (XRD), scanning electron microscopy (SEM), energy-dispersive X-ray spectroscopy (EDXS), Fourier transform infrared spectroscopy (FT-IR), UV-Vis diffuse reflectance spectroscopy (UV-DRS), photoluminescence techniques (PL), and Brunauer-Emmett-Teller (BET)-specific surface area analysis. A possible growth mechanism of the CuO nanostructures was proposed, and the photocatalytic activity for the inhibition of pathogenic bacteria was demonstrated under UV light irradiation within 60 min. The best inhibition efficiency of pathogenic bacteria over CuO-CTAB1.0% was 99.40 and 99.01%, with the rate constant of 0.0776 and 0.0666 min^-1 for pathogenic Escherichia coli and Staphylococcus aureus bacteria respectively.

在这项研究中，CuO纳米结构是通过短时间和低温水热途径成功合成的，而无需煅烧步骤。这些纳米粒子的合成是通过硝酸铜和氢氧化钠与不同浓度的十六烷基三甲基溴化铵（CTAB）作为化学助剂的水热反应完成的。通过X射线衍射（XRD），扫描电子显微镜（SEM），能量色散X射线光谱法（EDXS），傅里叶变换红外光谱法（FT-IR），UV-Vis漫反射光谱法表征所制备的产物。 （UV-DRS），光致发光技术（PL）和Brunauer-Emmett-Teller（BET）特定的表面积分析。提出了一种可能的CuO纳米结构的生长机理，在60分钟的紫外线照射下证明了其对病原菌的抑制作用。致病菌对CuO-CTAB1.0％的最佳抑菌效率为99.40和99.01％，速率常数为0.0776和0.0666min^-1分别代表致病性大肠杆菌和金黄色葡萄球菌。