Green Synthesis and Enhanced Photocatalytic Performance of rGO/ZnO/Fe3O4 Nanocomposites: A Sustainable Approach to Environmental Remediation.

IF 2.6 4区 化学 Q2 BIOCHEMICAL RESEARCH METHODS
Hamed Safajou, Zirar M Mizwari, Akram Rostaminia, Hossein Khojasteh, Peyman Aspoukeh, Mohammad-Peyman Mazhari
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Abstract

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/Fe3O4 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/Fe3O4 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.

rGO/ZnO/Fe3O4 纳米复合材料的绿色合成与增强光催化性能:环境修复的可持续方法。
快速的工业化和日益严重的污染使得人们需要先进的材料来有效降解污染物。基于金属氧化物和石墨烯衍生物的光催化纳米复合材料是利用光能进行环境修复的绝佳材料。其中,氧化锌基纳米复合材料因其较高的光催化活性和稳定性而备受关注。然而,要使这些纳米复合材料得到广泛应用,仍需提高其性能。本研究探讨了还原氧化石墨烯 rGO/ZnO/Fe3O4 纳米复合材料的绿色合成、详细表征和增强光催化效率。这些纳米复合材料是利用奶蓟草提取物作为天然还原剂,通过水热法合成的,是制造磁性 rGO/Fe3O4 纳米复合材料的一种新颖且可持续的方法。这些复合材料与氧化锌进一步结合,生成了一种多功能材料,具有高比表面积、优异的导电性和导热性以及坚固的机械强度。由于石墨烯和金属氧化物纳米颗粒之间的协同作用,光催化性能显著增强,从而实现了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显示了独特的氧化还原峰,证明了高效的电子传递过程对能量转换和存储应用至关重要。这种绿色合成方法不仅为先进纳米复合材料的开发提供了一条可持续发展的途径,而且凸显了它们在环境修复、传感、能量存储和光电子学等广泛领域的应用潜力。
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来源期刊
Journal of Fluorescence
Journal of Fluorescence 化学-分析化学
CiteScore
4.60
自引率
7.40%
发文量
203
审稿时长
5.4 months
期刊介绍: Journal of Fluorescence is an international forum for the publication of peer-reviewed original articles that advance the practice of this established spectroscopic technique. Topics covered include advances in theory/and or data analysis, studies of the photophysics of aromatic molecules, solvent, and environmental effects, development of stationary or time-resolved measurements, advances in fluorescence microscopy, imaging, photobleaching/recovery measurements, and/or phosphorescence for studies of cell biology, chemical biology and the advanced uses of fluorescence in flow cytometry/analysis, immunology, high throughput screening/drug discovery, DNA sequencing/arrays, genomics and proteomics. Typical applications might include studies of macromolecular dynamics and conformation, intracellular chemistry, and gene expression. The journal also publishes papers that describe the synthesis and characterization of new fluorophores, particularly those displaying unique sensitivities and/or optical properties. In addition to original articles, the Journal also publishes reviews, rapid communications, short communications, letters to the editor, topical news articles, and technical and design notes.
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