Fabrication of Fe3O4/Al2O3/CuO magnetic nanocomposite and effective in the photedegradation of methylene blue

IF 2.2 4区化学 Q3 CHEMISTRY, MULTIDISCIPLINARY

Journal of the Iranian Chemical Society Pub Date : 2024-05-18 DOI:10.1007/s13738-024-03027-5

Sheida Makaremi, Ali Hossein Kianfar, Mohammad Amin Arayesh

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Abstract

In this research, a Fe₃O₄/Al₂O₃/CuO magnetic nanocomposite (NC) was prepared by co-precipitation method for photocatalytic activity and identified using VSM, TEM, FE-SEM, EDX, XRD and DRS techniques. Based on the TEM analysis, the structure of NC was observed as nanorods. Also, the presence of CuO was confirmed by EDX and XRD analyses. Using the DRS spectrum results, the energy band gap of Fe₃O₄/Al₂O₃/CuO NC was determined as ~ 2 eV. The synthesized compound was used as a photocatalyst for the degradation of methylene blue under sunlight irradiation. The reaction process was investigated by ultraviolet–visible spectroscopy. According to the obtained results from MB degradation about 95 percent of MB (10 mg/L) was decomposed after 25 min under sunlight irradiation. Furthermore, even after five cycles, the rate of MB degradation could still exceed 90 percent. Also, based on the obtained results, the synthesized NC can be recovered and reused in the photochemistry process. Additionally, based on the results, the Fe₃O₄/Al₂O₃/CuO NCs show high performance photocatalytic activity toward the degradation of MB under solar radiation.

Graphical abstract

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制备 Fe3O4/Al2O3/CuO 磁性纳米复合材料并有效光降解亚甲基蓝

本研究采用共沉淀法制备了一种具有光催化活性的 Fe3O4/Al2O3/CuO 磁性纳米复合材料（NC），并使用 VSM、TEM、FE-SEM、EDX、XRD 和 DRS 技术对其进行了鉴定。根据 TEM 分析，NC 的结构为纳米棒。此外，EDX 和 XRD 分析也证实了氧化铜的存在。利用 DRS 光谱结果，确定了 Fe3O4/Al2O3/CuO NC 的能带隙为 ~ 2 eV。合成的化合物被用作光催化剂，在阳光照射下降解亚甲基蓝。反应过程通过紫外可见光谱进行了研究。根据所获得的甲基溴降解结果，在阳光照射下 25 分钟后，约 95% 的甲基溴（10 mg/L）被分解。此外，即使经过五个循环，甲基溴的降解率仍可超过 90%。同时，根据所获得的结果，合成的 NC 可以在光化学过程中回收和重复使用。此外，根据研究结果，Fe3O4/Al2O3/CuO NCs 对在太阳辐射下降解甲基溴显示出高性能的光催化活性。

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来源期刊

Journal of the Iranian Chemical Society 化学-化学综合

CiteScore

4.40

自引率

8.30%

发文量

230

审稿时长

5.6 months

期刊介绍： JICS is an international journal covering general fields of chemistry. JICS welcomes high quality original papers in English dealing with experimental, theoretical and applied research related to all branches of chemistry. These include the fields of analytical, inorganic, organic and physical chemistry as well as the chemical biology area. Review articles discussing specific areas of chemistry of current chemical or biological importance are also published. JICS ensures visibility of your research results to a worldwide audience in science. You are kindly invited to submit your manuscript to the Editor-in-Chief or Regional Editor. All contributions in the form of original papers or short communications will be peer reviewed and published free of charge after acceptance.