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Title

Synthesis and characterization ZnFe۲O۴@MnO and MnFe۲O۴@ZnO Magnetic Nanocomposites: Investigation of photocatalytic activity for the Degradation of Congo red under visible light irradiation

Year: 1400
COI: SCIC02_009
Language: EnglishView: 87
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Authors

Azam Zamani - Department of Chemistry, Science and Research Branch, Islamic Azad University, Tehran, Iran
Mirabdullah Seyed Sadjadi - Department of Chemistry, Science and Research Branch, Islamic Azad University, Tehran, Iran
Alireza Mahjoub - Department of Chemistry, Tarbiat Modares University, Tehran, Iran
Mohammad Yousefi - Department of Chemistry, Science and Research Branch, Islamic Azad University, Tehran, Iran
Nazanin Farhadyar - Department of Chemistry, Varamin Pishva Branch, Islamic Azad University, Varamin, Iran

Abstract:

In the present investigation, ZnFe۲O۴@MnO and MnFe۲O۴@ZnO magnetic nanocomposites were fabricated via facile hydrothermal method and were calcined at ۳۰۰ °C for ۳ h. Synthesis of ZnFe۲O۴@MnO and MnFe۲O۴@ZnO magnetic nanocomposites optimized by the different weight percentages. The synthesized photocatalyst was characterized by (XRD), (FT-IR), (VSM), EDAX, (DRS) and (FESEM). The ZnFe۲O۴@MnO nanoparticles were found to have of ۲۰-۵۰ nm. Magnetic studies revealed that the ZnFe۲O۴@MnO and MnFe۲O۴@ZnO nanocomposites can be easily separated from the solution by an external magnetic field. The results demonstrated that the degradation efficiency of ZnFe۲O۴@MnO nanocomposite(۹۸.۵%) was better than that of MnFe۲O۴@ZnO nanocomposite(۹۰.۳۲%) in Congo red (CR) aqueous solution in ۳۵ min of visible light irradiation, which is due to the presence of narrow band gap energy of ZnFe۲O۴@MnO.Kinetics studies have displayed that the degradation of CR by the prepared of photocatalysts follows the pseudo-first-order kinetics and the rate constant achieved for ZnFe۲O۴@MnO (k = ۰.۰۳۷۱ min−۱) was much greater than of MnFe۲O۴@ZnO (k = ۰.۰۳۲۱ min−۱). The synthesized ZnFe۲O۴@MnO nanocomposite can be potentially applied as a magnetically separable photocatalyst to deal with water pollution problems.

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This Paper COI Code is SCIC02_009. Also You can use the following address to link to this article. This link is permanent and is used as an article registration confirmation in the Civilica reference:

https://civilica.com/doc/1348237/

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Zamani, Azam and Seyed Sadjadi, Mirabdullah and Mahjoub, Alireza and Yousefi, Mohammad and Farhadyar, Nazanin,1400,Synthesis and characterization ZnFe۲O۴@MnO and MnFe۲O۴@ZnO Magnetic Nanocomposites: Investigation of photocatalytic activity for the Degradation of Congo red under visible light irradiation,Second National Conference on Development in Chemical Sciences and Industries,Jiroft,https://civilica.com/doc/1348237

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Type of center: Azad University
Paper count: 38,372
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