Rutin precursor for the synthesis of superparamagnetic ZnFe2O4 nanoparticles: experimental and density functional theory

Amani, Ali Mohammad; Danaie, Peyman; Vaez, Ahmad; Gholizadeh, Razieh; Firuzyar, Tahereh; Dehghani, Fatemehsadat; Mosleh-Shirazi, Sareh

doi:10.1007/s00339-022-05763-y

Cited by 22 publications

(5 citation statements)

References 64 publications

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“…Amani et al. [18] also reported similar XRD patterns and planes for this catalyst. The identified planes can be indexed to the cubic phase of ZnFe 2 O 4 with Fd3m space group, as confirmed by the standard diffraction pattern (JCPDS Card No.…”

Section: Resultssupporting

confidence: 64%

Microwave‐Driven Pyrolysis of Plastic Waste into Carbon Nanotubes and Hydrogen Using Spinel Ferrites

Shoukat,

Naz,

Yaseen

et al. 2024

Chem Eng & Technol

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In this study, NiFe2O4, ZnFe2O4, and MgFe2O4 catalysts are utilized to decompose plastic into hydrogen gas, liquids, and carbon nanotubes. Ferrite nanoparticles worked as a catalyst and heat susceptors for microwaves. MgFe2O4 catalyst resulted in highly structured carbon residue with fewer impurities than other catalysts. The oil yield of 13.5, 14, and 9.5 wt. % was obtained with NiFe2O4, ZnFe2O4, and MgFe2O4, respectively. Similarly, gas evolution was about 14, 13, and 12.5 wt. %, respectively. MgFe2O4 displayed superior H2 production efficiency of 90 % compared to the other two catalysts. These findings suggest high activity of MgFe2O4 catalyst compared to NiFe2O4 and ZnFe2O4 catalysts. This catalyst also showed stronger magnetic characteristics and reactivity.

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Section: Resultssupporting

confidence: 64%

Microwave‐Driven Pyrolysis of Plastic Waste into Carbon Nanotubes and Hydrogen Using Spinel Ferrites

Shoukat,

Naz,

Yaseen

et al. 2024

Chem Eng & Technol

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“…This indicates that 0.06 e is transferred from ZnFe 2 O 4 surface to OH groups. Hence, the external magnetic field facilitates the charge transfer from ZnFe 2 O 4 to the surface OH groups, promotes the activation of OH groups, and provides favorable conditions for the subsequent degradation of toluene …”

Section: Resultsmentioning

confidence: 99%

Magnetic-Field-Regulated ZnFe₂O₄ Nanospheres Interfacial Hydroxyl for Photocatalytic Air Purification

Chen

Jiang

et al. 2023

ACS Appl. Nano Mater.

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The presence of hydroxyl (OH) groups on the photocatalyst surface is crucial for the volatile organic compounds’ (VOCs) degradation. However, there is still limited knowledge on how OH groups are formed and their role in the magnetic-field-dependent photocatalytic degradation process. In this work, magnetic-field-assisted photocatalytic degradation of toluene was built by taking magnetic semiconductor material ZnFe2O4 nanospheres as the photocatalyst. Through a combination of experimental techniques, in situ DRIFTS analysis, and DFT calculations, we discovered that applying a vertical magnetic field activated the OH groups on the surface of ZnFe2O4, leading to an increase in the adsorption capacity of toluene. Additionally, the magnetic-field-induced Lorentz force facilitated the conversion of toluene to benzaldehyde, a significant step in the degradation process. As the magnetic field intensity increased, the way in which toluene was adsorbed changed. Overall, our study provides a valuable view for the role of OH groups and the effect of magnetic fields in the VOCs’ photocatalytic degradation.

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“…Among these modifications, biochar materials offer a promising and cost-effective approach to improve resource efficiency and reduce pollution. [26] However, in most studies, biochar is derived from carbonized plant extracts, [27][28][29] which can be complicated. Therefore, exploring alternative, simpler approaches such as using waste materials directly not only reduces production costs but also provides an effective strategy for fabricating ZnFe 2 O 4 @BC composites.…”

Section: Introductionmentioning

confidence: 99%

Green synthesis of ZnFe₂O₄@BC nanocrystals using pomelo peel waste for photo‐Fenton degradation of dye under visible light

Zheng,

Fan,

Cui

et al. 2024

ChemistrySelect

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In this study, an economical ZnFe2O4@BC composite was successfully synthesized using pomelo peel biochar through a simple one‐pot thermal‐calcination roasting method. The combination of biochar and ZnFe2O4 was confirmed by FTIR, XRD, Raman, TEM, and XPS analysis, confirming that the successful insertion of carbon into the oxygen sites of the ZnFe2O4 lattice, forming C−O bonds. The incorporation of biochar resulted in a high specific surface area, providing more active sites for catalytic reactions, enhancing electron transport, effectively separating electron‐hole pairs, increasing light capturing capacity, and restraining the leaching of metals. The Zn vacancy acted as an electron acceptor, promoting electron transfer in the catalyst by reducing the lowest unoccupied orbital position. Additionally, various reaction parameters such as solution pH, iron content, catalyst dosage, and H2O2 volume were investigated to elucidate their effects on the degradation performance. This study proposes a novel method for synthesizing carbon‐coated metal oxide semiconductors, which shows great potential for environmental and energy‐related applications.

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Rutin precursor for the synthesis of superparamagnetic ZnFe2O4 nanoparticles: experimental and density functional theory

Cited by 22 publications

References 64 publications

Microwave‐Driven Pyrolysis of Plastic Waste into Carbon Nanotubes and Hydrogen Using Spinel Ferrites

Microwave‐Driven Pyrolysis of Plastic Waste into Carbon Nanotubes and Hydrogen Using Spinel Ferrites

Magnetic-Field-Regulated ZnFe₂O₄ Nanospheres Interfacial Hydroxyl for Photocatalytic Air Purification

Green synthesis of ZnFe₂O₄@BC nanocrystals using pomelo peel waste for photo‐Fenton degradation of dye under visible light

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Rutin precursor for the synthesis of superparamagnetic ZnFe2O4 nanoparticles: experimental and density functional theory

Cited by 22 publications

References 64 publications

Microwave‐Driven Pyrolysis of Plastic Waste into Carbon Nanotubes and Hydrogen Using Spinel Ferrites

Microwave‐Driven Pyrolysis of Plastic Waste into Carbon Nanotubes and Hydrogen Using Spinel Ferrites

Magnetic-Field-Regulated ZnFe2O4 Nanospheres Interfacial Hydroxyl for Photocatalytic Air Purification

Green synthesis of ZnFe2O4@BC nanocrystals using pomelo peel waste for photo‐Fenton degradation of dye under visible light

Contact Info

Product

Resources

About

Magnetic-Field-Regulated ZnFe₂O₄ Nanospheres Interfacial Hydroxyl for Photocatalytic Air Purification

Green synthesis of ZnFe₂O₄@BC nanocrystals using pomelo peel waste for photo‐Fenton degradation of dye under visible light