In this study, CuO/Cu(OH)₂ (denoted as CuONs) nanostructures were synthesized relying to a cheap and rapid chemical co-precipitation method using copper sulfate and liquid ammonia as precursors. Results obtained from X-ray diffraction, and field emission scanning electron microscopy analysis revealed the crystalline nature of synthesized CuONs. Fourier transform infrared spectroscopy and energy dispersive spectroscopy studies showed interactions between copper and oxygen atoms. Synthesized CuONs showed the size in the range of 20–30 nm using high resolution transmission electron microscopy analysis. The photocatalytic degradation performance of Reactive Green 19A (RG19A) dye using CuONs was evaluated. The results showed that CuONs exhibited 98% degradation efficiency after 12 h and also complete mineralization in form of reducing chemical oxygen demand (COD) (84%) and total organic carbon (TOC) (80%). The nanocatalyst was recovered from the dye containing solution and its catalytic activity can be reused up to four times efficiently. CuONs was also able to decolorize actual textile effluent (80% in terms of the American Dye Manufacturers' Institute (ADMI) value) with significant reductions in COD (72%) and TOC (69%). Phytotoxicity studies revealed that the degradation products of RG19A and textile effluent were scarcely toxic in nature, thereby increasing the applicability of CuONs for the treatment of textile wastewater. Additionally, the CuONs showed a maximum antibacterial effect against human pathogens which also displayed synergistic antibacterial potential related to commercial antibiotics. Moreover, CuONs displayed strong antioxidant activity in terms of ABTS (2,2′-azino-bis(3-ethylbenzothiazoline-6-sulphonic acid) (IC₅₀: 51 μg/mL) and DPPH (1,1-diphenyl-2-picrylhydrazyl) (IC₅₀: 60 μg/mL) radical scavenging. The CuONs exhibited dose dependent response against tumor rat C6 cell line (IC₅₀: 60 μg/mL) and may serve as anticancer agents.

在这项研究中，CuO / Cu（OH）₂（称为CuONs）纳米结构是依靠廉价且快速的化学共沉淀方法合成的，该方法使用硫酸铜和液氨作为前体。从X射线衍射和场发射扫描电子显微镜分析获得的结果揭示了合成CuON的晶体性质。傅里叶变换红外光谱和能量色散光谱研究表明，铜和氧原子之间存在相互作用。使用高分辨率透射电子显微镜分析，合成的CuONs的尺寸在20–30 nm范围内。使用CuONs评估了活性绿19A（RG19A）染料的光催化降解性能。结果表明，CuONs在12 h后表现出98％的降解效率，并且以降低化学需氧量（COD）（84％）和总有机碳（TOC）（80％）的形式完全矿化。从含染料的溶液中回收纳米催化剂，其催化活性可以有效地重复使用多达四次。CuONs还能够使实际的纺织品废水脱色（按美国染料制造商协会（ADMI）的价值计算，为80％），COD（72％）和TOC（69％）显着降低。植物毒性研究表明，RG19A和纺织品废水的降解产物几乎没有毒性，因此提高了CuONs在纺织品废水处理中的适用性。此外，CuONs对人类病原体显示出最大的抗菌作用，并且还显示出与商业抗生素相关的协同抗菌潜能。此外，就ABTS（2,2'-叠氮基双（3-乙基苯并噻唑啉-6-磺酸）（IC₅₀：51μg/ mL）和DPPH（1,1-二苯基-2-吡啶并肼基）（IC ₅₀：60μg/ mL）清除自由基。CuON对肿瘤大鼠C6细胞系表现出剂量依赖性反应（IC ₅₀：60μg/ mL），并可作为抗癌药。