Development and application of multifunctional Fe3O4/SiO2/TiO2/Cu nanocomposites for sustainable water treatment

Mazhari, Mohammad-Peyman; Khojasteh, Hossein; Sharifi, Nowjuan; Aspoukeh, Peyman; Mousavi, Seyed Mahdi

doi:10.1007/s10971-024-06353-5

J Sol-Gel Sci Technol

2024

DOI: 10.1007/s10971-024-06353-5

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Development and application of multifunctional Fe3O4/SiO2/TiO2/Cu nanocomposites for sustainable water treatment

Mohammad-Peyman Mazhari,

Hossein Khojasteh,

Nowjuan Sharifi

et al.

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Cited by 4 publications

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Unraveling the Role of CuO in Cu_xO/TiO₂ Photocatalyst for the Direct Propylene Epoxidation With O₂ in a Fluidized Bed Reactor

Morante,

Tammaro,

Monzillo

et al. 2024

ChemSusChem

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Propylene epoxidation in mild conditions with molecular O2 is a highly desirable reaction that represents a significant challenge in the field of heterogeneous catalysis. In this work, CuxO/TiO2 composites with different CuO loadings were used to promote the photocatalytic epoxidation of propylene with molecular oxygen under UV‐A irradiation in a fluidized bed system. Different characterization techniques were employed to assess the influence of CuO content on the physical‐chemical properties of the CuxO/TiO2 composites. The best combination in terms of propylene conversion and selectivity towards propylene oxide (18.1% and 72%, respectively) was obtained with CuxO/TiO2 at 1.1 wt % CuO, as shown by photocatalytic tests. The high propylene oxide selectivity is due to the ability of CuO in the CuxO/TiO2 composite to transform molecular O2 into hydrogen peroxide that in turn is able to directly oxidize propylene to propylene oxide. By using a UV‐A light intensity of 297.2 mW cm‐2, the propylene conversion and the epoxide yield were 31.5 and 22.2%, respectively, significantly higher than that reported in the literature. Moreover, the energy consumption of the reaction system was significantly lower than that of literature photocatalytic systems dealing with selective propylene epoxidation.

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Unraveling the Role of CuO in Cu_xO/TiO₂ Photocatalyst for the Direct Propylene Epoxidation With O₂ in a Fluidized Bed Reactor

Morante,

Tammaro,

Monzillo

et al. 2024

ChemSusChem

View full text Add to dashboard Cite

show abstract

Optimization of Fe3O4@SiO2/Ag/AgCl/CdS nanocomposite via response surface methodology: an efficient visible-light photocatalyst for methyl orange degradation

Khojasteh,

Mohammadi-Aghdam,

Heydaryan

et al. 2024

J Sol-Gel Sci Technol

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Enhancing Visible Light-Driven Photocatalysis for Water Treatment: Optimizing Fe3O4@SiO2@Cr–TiO2–S Nanocomposite Efficiency with Silver and Palladium Deposition

Khojasteh,

Khezri,

Heydaryan

et al. 2024

Plasmonics

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Development and application of multifunctional Fe3O4/SiO2/TiO2/Cu nanocomposites for sustainable water treatment

Cited by 4 publications

References 44 publications

Unraveling the Role of CuO in Cu_xO/TiO₂ Photocatalyst for the Direct Propylene Epoxidation With O₂ in a Fluidized Bed Reactor

Unraveling the Role of CuO in Cu_xO/TiO₂ Photocatalyst for the Direct Propylene Epoxidation With O₂ in a Fluidized Bed Reactor

Optimization of Fe3O4@SiO2/Ag/AgCl/CdS nanocomposite via response surface methodology: an efficient visible-light photocatalyst for methyl orange degradation

Enhancing Visible Light-Driven Photocatalysis for Water Treatment: Optimizing Fe3O4@SiO2@Cr–TiO2–S Nanocomposite Efficiency with Silver and Palladium Deposition

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Development and application of multifunctional Fe3O4/SiO2/TiO2/Cu nanocomposites for sustainable water treatment

Cited by 4 publications

References 44 publications

Unraveling the Role of CuO in CuxO/TiO2 Photocatalyst for the Direct Propylene Epoxidation With O2 in a Fluidized Bed Reactor

Unraveling the Role of CuO in CuxO/TiO2 Photocatalyst for the Direct Propylene Epoxidation With O2 in a Fluidized Bed Reactor

Optimization of Fe3O4@SiO2/Ag/AgCl/CdS nanocomposite via response surface methodology: an efficient visible-light photocatalyst for methyl orange degradation

Enhancing Visible Light-Driven Photocatalysis for Water Treatment: Optimizing Fe3O4@SiO2@Cr–TiO2–S Nanocomposite Efficiency with Silver and Palladium Deposition

Contact Info

Product

Resources

About

Unraveling the Role of CuO in Cu_xO/TiO₂ Photocatalyst for the Direct Propylene Epoxidation With O₂ in a Fluidized Bed Reactor

Unraveling the Role of CuO in Cu_xO/TiO₂ Photocatalyst for the Direct Propylene Epoxidation With O₂ in a Fluidized Bed Reactor