In situ hydrothermal synthesis of ZnCo2O4/ZnO nanocomposite: Structural, optical, electrochemical properties and photocatalytic performance under visible light

IF 3.1 3区物理与天体物理 Q2 Engineering Optik Pub Date : 2024-07-30 DOI:10.1016/j.ijleo.2024.171976

Mona Ebrahimifar , Iraj Kazeminezhad , Atefeh Rahimi

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Abstract

In this work, we report preparing zinc cobalt oxide/zinc oxide nanocomposite via a facial in situ hydrothermal route. The crystal structure of the as-synthesized products was characterized using X-ray diffraction (XRD). The XRD results confirmed the preparation of a ZnCo₂O₄/ZnO nanocomposite. A field emission scanning electron microscope (FESEM) was used to analyze the morphology of samples. From FESEM images of the nanocomposite, ZnCo₂O₄ nanoparticles have been decorated on ZnO hexagonal nanoplates. The optical properties of the as-prepared samples were characterized by UV–vis and photoluminescence (PL) techniques. Furthermore, we investigated the photocatalytic performance of the obtained samples for acid orange 7 (AO7) dye. It was found that the ZnCo₂O₄/ZnO nanocomposite exhibited appreciable photocatalytic performance under visible light irradiation in comparison with ZnCo₂O₄ and ZnO nanostructures.

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原位水热合成 ZnCo2O4/ZnO 纳米复合材料：可见光下的结构、光学、电化学特性和光催化性能

在这项工作中，我们报告了通过面部原位水热法制备氧化钴/氧化锌纳米复合材料的情况。利用 X 射线衍射 (XRD) 对合成产物的晶体结构进行了表征。X 射线衍射结果证实制备了 ZnCoO/ZnO 纳米复合材料。使用场发射扫描电子显微镜（FESEM）分析了样品的形态。从纳米复合材料的 FESEM 图像来看，ZnO 六方纳米板上装饰有 ZnCoO 纳米颗粒。紫外可见光和光致发光（PL）技术表征了制备样品的光学特性。此外，我们还研究了所得样品对酸性橙 7（AO7）染料的光催化性能。结果发现，与 ZnCoO 和 ZnO 纳米结构相比，ZnCoO/ZnO 纳米复合材料在可见光照射下具有明显的光催化性能。

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来源期刊

Optik 物理-光学

CiteScore

6.90

自引率

12.90%

发文量

1471

审稿时长

46 days

期刊介绍： Optik publishes articles on all subjects related to light and electron optics and offers a survey on the state of research and technical development within the following fields: Optics: -Optics design, geometrical and beam optics, wave optics- Optical and micro-optical components, diffractive optics, devices and systems- Photoelectric and optoelectronic devices- Optical properties of materials, nonlinear optics, wave propagation and transmission in homogeneous and inhomogeneous materials- Information optics, image formation and processing, holographic techniques, microscopes and spectrometer techniques, and image analysis- Optical testing and measuring techniques- Optical communication and computing- Physiological optics- As well as other related topics.