Lone Amjad Latif, Rehman Sadiq Ur, Haq Sirajul, Alkhuriji Afrah F, Al-Malahi Nawal M, Razzokov Jamoliddin, Shujaat Shafia, Samad Abdus
Department of Chemistry, University of Azad Jammu and Kashmir Muzaffarabad 13100 Pakistan
Department of Zoology, College of Science, King Saud University P. O. Box 2455 Riyadh 11451 Saudi Arabia.
RSC Adv. 2025 Jul 2;15(28):22311-22321. doi: 10.1039/d5ra02443a. eCollection 2025 Jun 30.
This research focuses on the fabrication and characterization of a CuO-NiO nanocomposite (NC) and MWCNT-modified CuO-NiO NC for photocatalytic, antibacterial, and antioxidant applications. The bimetallic CuO-NiO nanostructure was fabricated the sol-gel method and subsequently functionalized with multi-walled carbon nanotubes (MWCNTs). Various physicochemical techniques were employed to explore the structural, optical, and compositional characteristics of the prepared samples. The photocatalytic performance of the nanocomposites was assessed through the degradation of rhodamine 6G under solar-light irradiation. The MWCNTs@CuO-NiO NC demonstrated the highest removal efficiency of 95.37%, with a decomposition rate constant of 5.99312 min. Their antibacterial efficacy was evaluated against two bacterial strains, namely, and , and it was found that exhibited higher resistance to the samples. Furthermore, the MWCNTs@CuO-NiO NC demonstrated superior antioxidant activity compared with its bare counterpart, with an IC value of 84.61 μg mL. The MWCNTs@CuO-NiO NC exhibited significantly enhanced antibacterial and antioxidant activities compared with the standard drug and pristine CuO-NiO NC. These findings highlight the multifunctional capabilities of the CuO-NiO NC and MWCNTs@CuO-NiO NC for environmental and biomedical applications.
本研究聚焦于用于光催化、抗菌和抗氧化应用的氧化铜-氧化镍纳米复合材料（NC）及多壁碳纳米管修饰的氧化铜-氧化镍纳米复合材料的制备与表征。采用溶胶-凝胶法制备了双金属氧化铜-氧化镍纳米结构，随后用多壁碳纳米管（MWCNTs）对其进行功能化处理。运用各种物理化学技术探究所制备样品的结构、光学和组成特性。通过在太阳光照射下罗丹明6G的降解来评估纳米复合材料的光催化性能。多壁碳纳米管@氧化铜-氧化镍纳米复合材料表现出最高去除效率，为95.37%，分解速率常数为5.99312 min⁻¹。评估了它们对两种细菌菌株的抗菌效果，发现[此处原文缺失细菌菌株名称]对样品表现出更高抗性。此外，多壁碳纳米管@氧化铜-氧化镍纳米复合材料与其未修饰的对应物相比表现出卓越的抗氧化活性，其半数抑制浓度（IC）值为84.61 μg mL⁻¹。与标准药物和原始氧化铜-氧化镍纳米复合材料相比，多壁碳纳米管@氧化铜-氧化镍纳米复合材料表现出显著增强的抗菌和抗氧化活性。这些发现突出了氧化铜-氧化镍纳米复合材料和多壁碳纳米管@氧化铜-氧化镍纳米复合材料在环境和生物医学应用方面的多功能能力。
