Safajou Hamed, Mizwari Zirar M, Rostaminia Akram, Khojasteh Hossein, Aspoukeh Peyman, Mazhari Mohammad-Peyman
Institute of Nano Science and Nano Technology, University of Kashan, P. O. Box, 87317-51167, Kashan, Islamic Republic of Iran.
Department of Medical Laboratory Technology, Shaqlawa Technical College, Erbil Polytechnic University, Erbil, Iraq.
J Fluoresc. 2024 Oct 24. doi: 10.1007/s10895-024-04014-y.
The fast industrialization and mounting pollution have necessitated the need for advanced materials in order to degrade pollutants efficiently. Metal oxide-based and graphene-derivative photocatalytic nanocomposites are excellent for harnessing light energy in environmental remediation. Among them, ZnO-based nanocomposites have drawn considerable attention because of their high photocatalytic activity and stability. However, improving the performance of these nanocomposites is still necessary for their wide applications. This study explores the green synthesis, detailed characterization, and enhanced photocatalytic efficiency of reduced graphene oxide rGO/ZnO/FeO nanocomposites. The nanocomposites were synthesized via a hydrothermal method, utilizing milk thistle extract as a natural reducing agent, representing a novel and sustainable approach to fabricating magnetic rGO/FeO nanocomposites. These composites were further integrated with zinc oxide to produce a multifunctional material, exhibiting high surface area, superior electrical and thermal conductivity, and robust mechanical strength. The photocatalytic performance was significantly enhanced due to the synergistic interaction between graphene and metal oxide nanoparticles, leading to efficient degradation of environmental pollutants. Electrochemical analysis via cyclic voltammetry revealed distinctive redox peaks, demonstrating efficient electron transfer processes essential for applications in energy conversion and storage. This green synthesis not only provides a sustainable pathway for the development of advanced nanocomposites but also underscores their potential in a wide range of applications, including environmental remediation, sensing, energy storage, and optoelectronics.
快速的工业化和日益严重的污染使得需要先进材料来有效降解污染物。金属氧化物基和石墨烯衍生物光催化纳米复合材料在环境修复中利用光能方面表现出色。其中，基于氧化锌的纳米复合材料因其高光催化活性和稳定性而备受关注。然而，提高这些纳米复合材料的性能对于它们的广泛应用仍然是必要的。本研究探索了还原氧化石墨烯rGO/ZnO/FeO纳米复合材料的绿色合成、详细表征及增强的光催化效率。该纳米复合材料通过水热法合成，利用水飞蓟提取物作为天然还原剂，这代表了一种制备磁性rGO/FeO纳米复合材料的新颖且可持续的方法。这些复合材料进一步与氧化锌整合以生产一种多功能材料，该材料具有高表面积、优异的电导率和热导率以及强大的机械强度。由于石墨烯与金属氧化物纳米颗粒之间的协同相互作用，光催化性能显著增强，从而实现对环境污染物的高效降解。通过循环伏安法进行的电化学分析揭示了独特的氧化还原峰，表明了对能量转换和存储应用至关重要的高效电子转移过程。这种绿色合成不仅为先进纳米复合材料的开发提供了一条可持续的途径，还突出了它们在包括环境修复、传感、能量存储和光电子学在内的广泛应用中的潜力。
