Imran Muhammad, Raza Mohsin, Noor Hadia, Faraz Sadia Muniza, Raza Ali, Farooq Umar, Khan Mohammad Ehtisham, Ali Syed Kashif, Bakather Omer Y, Ali Wahid, Bashiri Abdullateef H, Zakri Waleed
Centre of Excellence in Solid State Physics, University of Punjab, Lahore, 54590, Pakistan.
Additive Manufacturing Institute, Shenzhen University, Shenzhen, 518060, People's Republic of China.
Chemosphere. 2024 Jul;359:142224. doi: 10.1016/j.chemosphere.2024.142224. Epub 2024 May 8.
Environmental remediation has sought several innovative ways for the treatment of wastewater and captivated researchers around the globe towards it. Through this study, we aim to proceed with the efforts to foster sustainable and feasible ways for the treatment of wastewater. In this work, we report the sol-gel synthesis of CuO/MgO/ZnO nanocomposite and carry out their systematic characterization with the help of state-of-the-art analytical techniques, such as FTIR, SEM, TEM, PL, XRD, Raman, and AFM. The SEM along with TEM and AFM provided useful insights into the surface morphology of the synthesized nanocomposite on both 2D and 3D surfaces and concluded the well-dispersed behavior of the nanocomposite. The characteristic functional groups responsible for carrying out the reaction of Cu-O, Mg-O, and Zn-O were identified by FTIR spectroscopy. On the other hand, crystal size, dislocation density, and microstrain of the nanocomposite were calculated by XRD. For optical studies, photoluminescence spectroscopy was performed. Once the characterization of the nanocomposite was done, they were eventually treated against the toxic organic dye, methylene blue. The calculated rate constant values of k for CuO was 2.48 × 10 min, for CuO/MgO (2.04 × 10 min), for CuO/ZnO (1.82 × 10 min) and CuO/MgO/ZnO was found to be 2.00 × 10 min. It has become increasingly evident that nanotechnology can be used in various facets of modern life, and its implementation in wastewater treatment has recently received much attention.
环境修复一直在探索多种创新方法来处理废水，并吸引了全球各地的研究人员关注。通过本研究，我们旨在继续努力，寻求可持续且可行的废水处理方法。在这项工作中，我们报道了CuO/MgO/ZnO纳米复合材料的溶胶-凝胶合成，并借助傅里叶变换红外光谱（FTIR）、扫描电子显微镜（SEM）、透射电子显微镜（TEM）、光致发光（PL）、X射线衍射（XRD）、拉曼光谱和原子力显微镜（AFM）等先进分析技术对其进行系统表征。SEM以及TEM和AFM提供了关于合成纳米复合材料在二维和三维表面上的表面形态的有用见解，并得出纳米复合材料具有良好分散行为的结论。通过FTIR光谱确定了负责Cu-O、Mg-O和Zn-O反应的特征官能团。另一方面，通过XRD计算了纳米复合材料的晶体尺寸、位错密度和微观应变。为了进行光学研究，进行了光致发光光谱分析。纳米复合材料表征完成后，最终将它们用于处理有毒有机染料亚甲基蓝。计算得出CuO的k速率常数为2.48×10⁻³ min⁻¹，CuO/MgO为（2.04×10⁻³ min⁻¹），CuO/ZnO为（1.82×10⁻³ min⁻¹），CuO/MgO/ZnO为2.00×10⁻³ min⁻¹。越来越明显的是，纳米技术可用于现代生活的各个方面，其在废水处理中的应用最近受到了广泛关注。
