Ag/GO/Fe₃O₄/γ-Fe₂O₃ Nanocomposite for Green-Light-Driven Photocatalytic Oxidation of 5-Hydroxymethylfurfural to 5-Hydroxymethyl-2-furancarboxylic Acid

ACS Applied Nano Materials, Год журнала: 2024, Номер 7(8), С. 8765 - 8782

Опубликована: Апрель 17, 2024

Selective oxidation of 5-hydroxymethylfurfural (HMF) to 5-hydroxymethyl-2-furancarboxylic acid (HMFCA) is a promising yet challenging task, producing significant chemical feedstocks. The development nonprecious and efficient catalytic system for biomass-derived HMF great importance HMFCA production. Herein, magnetic Ag/GO/Fe3O4/γ-Fe2O3 nanocomposite with p–n heterojunctions was fabricated using simple refluxing method followed by an autoclave step at 120 °C. employed as photocatalyst the selective toward high conversion (99%) selectivity (98%). products were separated determined high-performance liquid chromatography-ultraviolet. structural integrity synthesized corroborated Fourier-transform infrared, field emission scanning electron microscopy, energy dispersive X-ray, transmission vibrating sample magnetometer, dynamic light scattering, X-ray diffraction, photoelectron spectroscopy, diffuse reflectance photoluminescence, BET-BJH. Various parameters checked, such temperature, amount catalyst, time, base, sources, intensity, recyclability, efficiency photocatalyst. In result, highest photocatalytic (98%) obtained 0.03 mol % under green emitting diode irradiation (12 W) 1.5 h. Therefore, protocol provides route enhance properties performance semiconductor materials synthesizing value-added chemicals environmentally friendly conditions.

Язык: Английский

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Incorporation of Cu₅FeS₄ QDs with Abundant Oxygen Vacancy TiO₂ QDs/TiO₂ OVs: Double S-Scheme Photocatalysts for Effectual N₂ Conversion to NH₃ under Simulated Solar Light

Inorganic Chemistry, Год журнала: 2024, Номер 63(15), С. 6957 - 6971

Опубликована: Апрель 4, 2024

Photocatalytic N2 conversion to NH3 is a green, sustainable pathway with renewable energy sources and carbon neutrality. In this research, ternary TiO2 QDs/TiO2 OVs/Cu5FeS4 nanocomposites were prepared by an easy affordable procedure utilized produce clean ammonia without sacrificial agent. The amount of produced green the optimum nanocomposite achieved was 17,274 μmol L–1 g–1, which approximately 20.9, 6.48, 4.45, 2.26, 1.45 times higher than those commercial TiO2, QDs, OVs, Cu5FeS4, OVs photocatalysts, respectively. Lattice compatibility through developed homojunction within integration Cu5FeS4 nanoparticles led establishment double S-scheme homo/heterojunction system, improved photocatalytic activity maintaining electrons holes high oxidation reduction power greatly reduced recombination charges, acceleration charge transfer migration. Besides, promoted surface area compared pure components, introducing oxygen vacancies, reducing particle size boosted NH3. results research are basis for rational design homojunction/heterojunction visible-light-responsive systems nitrogen fixation reactions.

Язык: Английский

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Advancements in AgBiO3-based heterojunctions for environmental sustainability: Modification strategies and mechanistic insights

Inorganic Chemistry Communications, Год журнала: 2025, Номер unknown, С. 114482 - 114482

Опубликована: Апрель 1, 2025

Язык: Английский

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Construction of highly efficient CoFe-LDO/BiOBr-OV S-scheme heterojunction photocatalyst for dehalogenative removal of disinfection by-products from water: Performance and mechanism

Chemical Engineering Journal, Год журнала: 2025, Номер unknown, С. 163170 - 163170

Опубликована: Апрель 1, 2025

Язык: Английский

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Photocatalytic degradation of antibiotics in water via TiO2-x: Research needs for technological advancements

Journal of Hazardous Materials Advances, Год журнала: 2024, Номер 16, С. 100506 - 100506

Опубликована: Окт. 20, 2024

Язык: Английский

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Integration of Bi nanoparticles with brown TiO2 co-modified by Bi2Fe4O9 and BiFeO3: Double S-scheme photocatalysts towards degradation of pollutants

Journal of Industrial and Engineering Chemistry, Год журнала: 2024, Номер unknown

Опубликована: Авг. 1, 2024

Язык: Английский

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Nanocomposite Materials with Photocatalytic Properties

IntechOpen eBooks, Год журнала: 2024, Номер unknown

Опубликована: Июль 23, 2024

Nanocomposites are multiphase materials that attracted considerable attention as very efficient photocatalytic materials. The nanocomposite photocatalysts contain semiconductors and metals reinforced nanophase activity is result of this heterojunction with matrix. aim section to explore some the most representative electro-photocatalytic properties. These reactions an alternative solution use sunlight energy in degradation contaminants from air water, synthesis new organic compounds, source. reaction between photons (powder, fiber, film) associated generation reactive oxygen species play a key role these applications. effects heterojunctions different their synergy promote properties nanocomposites evidenced. mechanisms various types thus presented highlighting strategy suppress recombination e−/h+ pairs. variation visible light absorption increasing its efficiency, selectivity, stability due contribution surface plasmon resonance effect produced by precious nanoparticles also considered.

Язык: Английский

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La2Zr2O7/Bi2Sn2O7 heterostructure for photocatalytic degradation of tetracycline with the aid of hydrogen peroxide under visible light irradiation

Journal of Materials Science Materials in Electronics, Год журнала: 2024, Номер 35(24)

Опубликована: Авг. 1, 2024

Язык: Английский

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