文章基本信息

标题：ZnCr₂O₄ Nanoparticles: Facile Synthesis, Characterization, and Photocatalytic Properties
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作者：Zahra Mousavi ; Faezeh Soofivand ; Mahdiyeh Esmaeili-Zare 等
期刊名称：Scientific Reports
电子版ISSN：2045-2322
出版年度：2016
卷号：6
DOI：10.1038/srep20071
出版社：Springer Nature
摘要：In this work, zinc chromite (ZnCr₂O₄) nanostructures have been synthesized through co-precipitation method. The effect of various parameters such as alkaline agent, pH value, and capping agent type was investigated on purity, particle size and morphology of samples. It was found that particle size and morphology of the products could be greatly influenced via these parameters. The synthesized products were characterized by field emission scanning electron microscopy (FESEM), X-ray diffraction (XRD), fourier transform infrared (FT-IR) spectra, X-ray energy dispersive spectroscopy (EDS), photoluminescence (PL) spectroscopy, diffuse reflectance spectroscopy (DRS) and vibrating sample magnetometry (VSM). The superhydrophilicity of the calcined oxides was investigated by wetting experiments and a sessile drop technique which carried out at room temperature in air to determine the surface and interfacial interactions. Furthermore, the photocatalytic activity of ZnCr₂O₄ nanoparticles was confirmed by degradation of anionic dyes such as Eosin-Y and phenol red under UV light irradiation. The obtained ZnCr₂O₄ nanoparticles exhibit a paramagnetic behavior although bulk ZnCr₂O₄ is antiferromagnetic, this change in magnetic property can be ascribed to finite size effects.