Synthesis and characterization of magnetite nanoparticles for photocatalysis of nitrobenzene

Villegas, Victor Alfredo Reyes; Ramírez, Jesús Isaías De León; Guevara, Esteban Hernández; Sicairos, Sergio Pérez; Ayala, Lilia Angelica Hurtado; Sánchez, Bertha Landeros

doi:10.1016/j.jscs.2019.12.004

Cited by 91 publications

(21 citation statements)

References 60 publications

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“…Magnetite shows very sharp band which is characteristic peak for the Fe–O vibrations. 39 This FT-IR spectrum is in accordance with previous studies. 35,40…”

Section: Resultssupporting

confidence: 92%

Sequestration of chromium(vi) and nickel(ii) heavy metals from unhygienic water via sustainable and innovative magnetic nanotechnology

Zulfiqar,

Shariatipour,

Inam

2024

Nanoscale Adv.

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“…Magnetite shows very sharp band which is characteristic peak for the Fe–O vibrations. 39 This FT-IR spectrum is in accordance with previous studies. 35,40…”

Section: Resultssupporting

confidence: 92%

Sequestration of chromium(vi) and nickel(ii) heavy metals from unhygienic water via sustainable and innovative magnetic nanotechnology

Zulfiqar,

Shariatipour,

Inam

2024

Nanoscale Adv.

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“…The distinctive peaks and absorption edge observed at 238 nm in the spectrum provide valuable insights into the nanoparticles’ electronic transitions and, when analyzed using methods like the Tauc plot, facilitate the determination of the direct band gap energy, contributing to a comprehensive understanding of their optical properties (Figure b). Remarkably, black-colored Fe 3 O 4 NPs demonstrated broad absorption in this specific region. , …”

Section: Results and Discussionmentioning

confidence: 86%

Photocatalytic Degradation of Antibiotics via Exploitation of a Magnetic Nanocomposite: A Green Nanotechnology Approach toward Drug-Contaminated Wastewater Reclamation

Zulfiqar,

Nadeem,

Musaimi

2024

ACS Omega

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In the quest for eco-conscious innovations, this research was designed for the sustainable synthesis of magnetite (Fe 3 O 4 ) nanoparticles, using ferric chloride hexahydrate salt as a precursor and extract of Eucalyptus globulus leaves as both a reducing and capping agent, which are innovatively applied as a photocatalyst for the photocatalytic degradation of antibiotics "ciprofloxacin and amoxicillin". Sugar cane bagasse biomass, sugar cane bagasse pyrolyzed biochar, and magnetite/sugar cane bagasse biochar nanocomposite were also synthesized via environmentally friendly organized approaches. The optimum conditions for the degradation of ciprofloxacin and amoxicillin were found to be pH 6 for ciprofloxacin and 5 for amoxicillin, dosage of the photocatalyst (0.12 g), concentration (100 mg/L), and irradiation time (240 min). The maximum efficiencies of percentage degradation for ciprofloxacin and amoxicillin were found to be (73.51%) > (63.73%) > (54.57%) and (74.07%) > (61.55%) > (50.66%) for magnetic nanocomposites, biochar, and magnetic nanoparticles, respectively. All catalysts demonstrated favorable performance; however, the "magnetite/SCB biochar" nanocomposite exhibited the most promising results among the various catalysts employed in the photocatalytic degradation of antibiotics. Kinetic studies for the degradation of antibiotics were also performed, and notably, the pseudo-first-order chemical reaction showed the best results for the degradation of antibiotics. Through a comprehensive and comparative analysis of three unique photocatalysts, this research identified optimal conditions for efficient treatment of drug-contaminated wastewater, thus amplifying the practical significance of the findings. The recycling of magnetic nanoparticles through magnetic separation, coupled with their functional modification for integration into composite materials, holds significant application potential in the degradation of antibiotics.

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“…Direct energy band gap for both the fillers were 1.52 eV and 1.18 eV and 1.1 eV of indirect band gap for filler‐1 and filler‐2, respectively. The activated carbon and activated charcoal—Fe 3 O 4 composites recorded low band gap values than the band gap of pure Fe 3 O 4 nanoparticles 36 . This was attributed by the presence of dielectric carbonaceous materials with the Fe 3 O 4 nanoparticles.…”

Section: Resultsmentioning

confidence: 86%

Effect of carbon fiber reinforcement on the mechanical and electromagnetic shielding properties of the Fe₃O₄‐carbonaceous/epoxy composites

Anu¹,

Vishnumurthy²,

Mahesh³

et al. 2023

Polymers for Advanced Techs

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The present work aimed at the simultaneous improvement in the mechanical and electromagnetic shielding properties of Fe3O4‐carbonaceous/epoxy composites by the reinforcement of two plies of carbon fiber into the epoxy‐filler matrix. In this study, Fe3O4‐activated carbon and Fe3O4‐activated charcoal composites were synthesized by co‐precipitation method and were introduced into the epoxy matrix with different weight percentage (5, 10, and 15 wt%). The BET surface area analysis revealed the high porosity in the Fe3O4‐activated charcoal composite than that of activated carbon composite. The Fe3O4‐activated carbon/epoxy composite showed better mechanical properties than the later. Both the composites showed nearly same EMI SE value. 10 wt% of the filler‐1/epoxy composite showed the highest shielding effectiveness (SE) value of −22.5 dB at 10 GHz whereas 15 wt% Fe3O4@charcoal/epoxy composite showed better SE value of −27.15 dB at 8.8 GHz. The obtained results were supported by the dielectric and magnetic loss tangent studies. The incorporation of carbon fiber enhanced the mechanical property by three times and the EMI SE value by ~15 dB. Thus, the carbon fiber reinforced Fe3O4/carbonaceous epoxy composites may be the potential electromagnetic shielding material for electronics and aircraft industries.

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Synthesis and characterization of magnetite nanoparticles for photocatalysis of nitrobenzene

Cited by 91 publications

References 60 publications

Sequestration of chromium(vi) and nickel(ii) heavy metals from unhygienic water via sustainable and innovative magnetic nanotechnology

Sequestration of chromium(vi) and nickel(ii) heavy metals from unhygienic water via sustainable and innovative magnetic nanotechnology

Photocatalytic Degradation of Antibiotics via Exploitation of a Magnetic Nanocomposite: A Green Nanotechnology Approach toward Drug-Contaminated Wastewater Reclamation

Effect of carbon fiber reinforcement on the mechanical and electromagnetic shielding properties of the Fe₃O₄‐carbonaceous/epoxy composites

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Synthesis and characterization of magnetite nanoparticles for photocatalysis of nitrobenzene

Cited by 91 publications

References 60 publications

Sequestration of chromium(vi) and nickel(ii) heavy metals from unhygienic water via sustainable and innovative magnetic nanotechnology

Sequestration of chromium(vi) and nickel(ii) heavy metals from unhygienic water via sustainable and innovative magnetic nanotechnology

Photocatalytic Degradation of Antibiotics via Exploitation of a Magnetic Nanocomposite: A Green Nanotechnology Approach toward Drug-Contaminated Wastewater Reclamation

Effect of carbon fiber reinforcement on the mechanical and electromagnetic shielding properties of the Fe3O4‐carbonaceous/epoxy composites

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Effect of carbon fiber reinforcement on the mechanical and electromagnetic shielding properties of the Fe₃O₄‐carbonaceous/epoxy composites