绿色合成衍生出新型 Fe2O3/ZnO 纳米复合材料，用于高效光催化降解甲基橙染料

IF 1.7 4区化学 Q3 CHEMISTRY, ANALYTICAL

Current Analytical Chemistry Pub Date : 2024-01-25 DOI:10.2174/0115734110297844240119062857

Nimisha Jadon, Bhupinder Kour, Bilal Ahmad Bhat, Harendra Kumar Sharma

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引用次数: 0

摘要

目的本研究旨在使用芒果叶提取物作为还原剂制备 Fe2O3/ZnO 纳米复合材料，以了解针对甲基橙的光催化活性的完整机制，因为甲基橙毒性较大，且广泛分布于水流中。背景：多年来，许多基于金属氧化物的绿色合成纳米复合材料（如 Ag/RGO/Fe3O4、CuO/ZnO、CuO/C、rGO-Ag/ZnO、Ag/TiO2、Ag/Fe3O4 等）已被报道。它们被证明是优良的光催化、抗菌和抗氧化剂：利用可见光 LED 光对合成的纳米复合材料降解甲基橙染料的光催化效率进行了评估。同时还对吸附等温线和动力学研究进行了验证：通过 X 射线衍射、紫外可见分光光度计、光致发光光谱和透射电子显微镜对合成的纳米材料进行了表征，并对操作条件进行了优化，以获得最佳的有机染料降解效率。此外，还对吸附等温线和动力学模型进行了评估：Fe2O3/ZnO 纳米复合材料的光催化活性达到约 91.07：在本研究中，我们通过共沉淀法，采用简便、高效、绿色的根式技术成功合成了 Fe2O3/ZnO 纳米复合材料。该方法使用芒果叶提取物作为天然还原剂。吸附等温线研究表明，MO 染料分子在合成催化剂表面存在单层吸附。此外，本研究中的吸附过程遵循伪二阶动力学模型：因此，本研究获得的数据可能有助于设计和制造经济的废水处理材料，并能极大地促进水环境中各种污染物和染料的净化。

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Green Synthesis Derived Novel Fe2O3/ZnO Nanocomposite for Efficient Photocatalytic Degradation of Methyl Orange Dye

aims: The present study aims to prepareFe2O3/ZnO nanocomposite by using Mangifera indica leaf extract as a reducing agent to understand the complete mechanism of photocatalytic activity against methyl orange as it is more toxic and widely distributed in aqueous streams. background: Over the years, a number of green synthesized metal-oxide based nanocomposites viz Ag/RGO/Fe3O4, CuO/ZnO, CuO/C,rGO-Ag/ZnO, Ag/TiO2, Ag/Fe3O4 etc. have been reported. They are proved to be excellent photocatalytic, anti-bacterial and antioxidant agents. objective: The photocatalytic efficiency of the synthesized nanocomposite was evaluated for degradation of methyl orange dye using visible LED light. Adsorption isotherm and kinetic studies were also studied to validate the study. method: The synthesized nanomaterials were successfully characterized by X-ray diffraction, UV-visible spectrophotometer, Photoluminescence spectroscopy and Transmission electron microscopy and operational conditions was optimized to get the best degradation efficiency of organic dye. Adsorption isotherm and kinetic models were also evaluated. result: The photocatalytic activity of Fe2O3/ZnO nanocomposite reaches to about 91.07 conclusion: In the present study, we have successfully synthesized Fe2O3/ZnO nanocomposite by a facile, efficient and green root technique via co-precipitation method. The method involved the use of Mangifera indica plant leaf extract as a natural reducing agent. There was monolayer adsorption of MO dye molecules on the surface of synthesized catalyst as revealed by adsorption isotherm studies. Also, the adsorption process followed the pseudo-second order kinetic model in this study. other: Thus the obtained data of this study may be useful in designing and fabricating economical waste water treatment materials and can significantly contribute to the decontamination of a variety of pollutants and dyes from aqueous environments.

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来源期刊

Current Analytical Chemistry 化学-分析化学

CiteScore

4.10

自引率

0.00%

发文量

审稿时长

9 months

期刊介绍： Current Analytical Chemistry publishes full-length/mini reviews and original research articles on the most recent advances in analytical chemistry. All aspects of the field are represented, including analytical methodology, techniques, and instrumentation in both fundamental and applied research topics of interest to the broad readership of the journal. Current Analytical Chemistry strives to serve as an authoritative source of information in analytical chemistry and in related applications such as biochemical analysis, pharmaceutical research, quantitative biological imaging, novel sensors, and nanotechnology.