用于分离有毒偶氮染料的磁性CaFe2O4-CeO2纳米复合材料的简单合成及其光催化性能研究

IF 1.4 Q4 NANOSCIENCE & NANOTECHNOLOGY

Journal of Nanostructures Pub Date : 2020-07-01 DOI:10.22052/JNS.2020.03.006

Fatemeh Seidi, K. Hedayati

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引用次数: 5

摘要

第一步，在淀粉、聚乙烯吡咯烷酮和葡萄糖等绿色相容封端剂的存在下，在水的溶剂中，通过简单的沉淀法合成了铁氧体钙纳米结构。然后采用快速化学方法制备了氧化铈纳米颗粒和CaFe2O4-CeO2纳米复合材料。研究了纳米颗粒的温度、纳米复合材料的浓度和沉淀剂对产物形貌和粒径的影响。通过X射线衍射（XRD）、扫描电子显微镜（SEM）和傅立叶变换红外光谱（FT-IR）对制备的产物进行了表征。此外，纳米颗粒的结晶尺寸也通过Debye-Scherrer公式计算。振动样品磁强计（VSM）显示了铁氧体纳米结构的铁磁性质。通过对三种偶氮染料（酸性黑、酸性紫和酸性蓝）在紫外光照射下的降解，评价了CaFe2O4-CeO2纳米复合材料的光催化性能。结果介绍了一种具有适用的磁性和光催化性能的纳米复合材料。

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A facile synthesis and study of photocatalytic properties of magnetic CaFe2O4-CeO2 nanocomposites applicable for separation of toxic azo dyes

At the first step calcium ferrite nanostructures were synthesized via a facile precipitation method in the presence of green and compatible capping agent such as starch, poly vinyl pyrrolidone and glucose in solvent of water. Then cerium oxide nanoparticles and CaFe2O4-CeO2 nanocomposites was made by a fast chemical procedure. The effect of temperature in nanoparticles and nanocomposites concentration and precipitating agent on the morphology and particle size of the products was investigated. The prepared products were characterized by X-ray diffraction (XRD), scanning electron microscopy (SEM), and Fourier transform infrared (FT-IR) spectroscopy. Also the crystalline size of nanoparticles was calculated by Debye-Scherrer formula. Vibrating sample magnetometer (VSM) shows the ferromagnetic property of the ferrite nanostructures. The photocatalytic behaviour of CaFe2O4-CeO2 nanocomposites was evaluated using the degradation of three azo dyes (acid black, acid violet and acid blue) under ultraviolet light irradiation. The results introduce a nanocomposite with applicable magnetic and photocatalytic performance.

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来源期刊

Journal of Nanostructures NANOSCIENCE & NANOTECHNOLOGY-

CiteScore

2.60

自引率

0.00%

发文量

审稿时长

7 weeks

期刊介绍： Journal of Nanostructures is a medium for global academics to exchange and disseminate their knowledge as well as the latest discoveries and advances in the science and engineering of nanostructured materials. Topics covered in the journal include, but are not limited to the following: Nanosystems for solar cell, energy, catalytic and environmental applications Quantum dots, nanocrystalline materials, nanoparticles, nanocomposites Characterization of nanostructures and size dependent properties Fullerenes, carbon nanotubes and graphene Self-assembly and molecular organization Super hydrophobic surface and material Synthesis of nanostructured materials Nanobiotechnology and nanomedicine Functionalization of nanostructures Nanomagnetics Nanosensors.