A review on sustainable iron oxide nanoparticles: syntheses and applications in organic catalysis and environmental remediation

Green Chemistry, Journal Year: 2024, Volume and Issue: 26(13), P. 7579 - 7655

Published: Jan. 1, 2024

In this review paper, recent developments of iron oxide nanoparticles are highlighted and discussed in the field organic catalysis environmental remediation.

Language: Английский

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AgFe₂O₄@g-C₃N₄@SO₃H Nanocomposite: Efficient and Heterogeneous Photocatalyst for the Production of 5-Hydroxymethylfurfural as a Renewable Biofuel under Visible-Light Irradiation

Energy & Fuels, Journal Year: 2025, Volume and Issue: unknown

Published: Jan. 9, 2025

The use of photocatalysis in conjunction with biomass presents an innovative and promising way to increase the sustainability chemical processes. In this work, a g-C3N4@AgFe2O4 heterojunction nanocomposite was prepared by facile sonication method subsequently modified sulfonic acid groups form new acidic photocatalyst enhanced photocatalytic activity. structure, surface composition, morphology, optical absorption features were studied using state-of-the-art characterization techniques. Visible-light-driven dehydration biomass-derived carbohydrates 5-hydroxymethylfurfural (HMF), as versatile platform compound, employed assess its catalytic property. Compared traditional homogeneous heterogeneous catalysts, reveled superior or equal activity production HMF from fructose only at low temperature (90 °C, 91% yield). easily recovered remained active recycle runs, approving good stability. Furthermore, developed protocol found be capable converting other feedstocks, such glucose, sucrose, maltose into respectable yields. Interestingly, work represents first example utilizing photocatalyst.

Language: Английский

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Application of MOFs driven by various energy sources for degradation the organic pollutants in water: A review

Coordination Chemistry Reviews, Journal Year: 2023, Volume and Issue: 499, P. 215506 - 215506

Published: Oct. 17, 2023

Language: Английский

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Critical review on wastewater treatment using photo catalytic advanced oxidation process: Role of photocatalytic materials, reactor design and kinetics

Case Studies in Chemical and Environmental Engineering, Journal Year: 2023, Volume and Issue: 9, P. 100599 - 100599

Published: Dec. 30, 2023

The presence of persistent organic compounds in wastewater poses significant challenges to both biotic community and natural environment, resulting a severely adverse effect on the ecosystem. In view urgent scenarios, removal pollutants from effluent has potential restore ecological equilibrium maintain social value sustainability. Among various methods used for treatment, photocatalytic advanced oxidation processes have gained as viable promising alternative approach. objective this review paper is provide comprehensive exploration materials treatment with scopes future enhancements. Further, factors affecting are highlighted. particular, selection, design aspects scaleup criteria reactors could assist establishment commercial scale process. This stimulates research kinetic study order get deeper understanding mechanisms involved formation novel photo-catalyst materials. Thus, photo catalytic process become spectacular method wastewater.

Language: Английский

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Optimizing the performance of Fe-based metal-organic frameworks in photo-Fenton processes: Mechanisms, strategies and prospects

Chemosphere, Journal Year: 2023, Volume and Issue: 339, P. 139673 - 139673

Published: Aug. 1, 2023

Language: Английский

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Graphene-based photocatalysts for degradation of organic pollution

Chemosphere, Journal Year: 2023, Volume and Issue: 341, P. 140038 - 140038

Published: Sept. 1, 2023

Language: Английский

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NiFe2O4/biochar decorated porous polymer membranes for the flow-through photo-Fenton degradation of tetracycline

Chemical Engineering Journal, Journal Year: 2023, Volume and Issue: 477, P. 147203 - 147203

Published: Nov. 9, 2023

Herein, coffee grounds derived biochar was used as support for the fabrication of NiFe2O4/biochar composite particles. The composites achieved up to 10x higher turnover frequencies (TOF) in photo-Fenton degradation tetracycline (20 mg/L) batch compared pure NiFe2O4 This could be correlated a decreased agglomeration, lower band gap energy and electronic interaction with biochar. hydrophobic further enabled incorporation powders into porous polyethersulfone (PES) membranes via film casting cum phase separation. resulting about 150 µm thick flow-through membrane reactors high degrees conversion (95–99 %) at flux 100 L/m2h continuous water. We show that TOF values are 5-20x times catalytic catalyst particles mode. also demonstrated our photocatalytic can remove low concentrations (2 0.2 below detection limit mass spectrometry analysis. Monitoring leaching Ni Fe from one over 28 h revealed predominantly leaches incorporated NiFe2O4/biochar, which, however, did not lead any loss activity. Moreover, we found residence time has direct influence on pathways product profile, which represents novel approach tuning Fenton-like reactions towards specific products.

Language: Английский

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Heterogeneous Photocatalytic Conversion of Biomass-Derived Sugars into 5-Hydroxymethylfurfural over AgFe₂O₄/TiO₂–SO₃H Nanocomposite

ACS Sustainable Chemistry & Engineering, Journal Year: 2024, Volume and Issue: unknown

Published: Nov. 28, 2024

Language: Английский

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Photocatalytic and persulfate-facilitated tetracycline degradation using NiFe2O4/carbon/polymer membranes: Activity and stability during flow-through

Applied Surface Science, Journal Year: 2024, Volume and Issue: 669, P. 160603 - 160603

Published: June 25, 2024

We synthesized NiFe2O4/carbon composite nanoparticles through a straightforward co-precipitation method, and incorporated these particles into porous polyethersulfone (PES) membranes via casting solution blending film cum phase separation. The resulting photocatalytic were used for the oxidative degradation of tetracycline (TC) in flow–through. could demonstrate higher catalytic activity acidic conditions, enhancement under visible light irradiation, 3x TC removal by persulfate (PS) comparison to H2O2. Moreover, we observed leaching all Ni from NiFe2O4 after using membrane 30 h flow-through 5 ppm with PS. This was accompanied loss total organic carbon activity, suggesting that plays an important role as mineralization promoter. However, no Fe occurred situ formed FexOy retained high conversion contact highlighting exceptional long-term stability. further identified substrate desorption, catalyst complexation, metal can be facilitated presence radical scavengers. significantly contributed their inhibitory effects, illustrating altered substrate-catalyst interaction may frequently overlooked during detection species.

Language: Английский

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Studying the Defects in Spinel Compounds: Discovery, Formation Mechanisms, Classification, and Influence on Catalytic Properties

Nanomaterials, Journal Year: 2024, Volume and Issue: 14(20), P. 1640 - 1640

Published: Oct. 12, 2024

Spinel ferrites demonstrate extensive applications in different areas, like electrodes for electrochemical devices, gas sensors, catalysts, and magnetic adsorbents environmentally important processes. However, defects the real spinel structure can change many physical chemical properties of ferrites. Although number a crystal lattice is small, their influence on vast majority could be really decisive. This review provides an overview structural characteristics compounds (e.g., CoFe

Language: Английский

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