Fe3O4-CdO Nanocomposite for Organic Dye Photocatalytic Degradation: Synthesis and Characterization

Catalysts, Год журнала: 2024, Номер 14(1), С. 71 - 71

Опубликована: Янв. 17, 2024

In this study, pure CdO nanoparticles, magnetic Fe3O4 and Fe3O4-CdO nanocomposites were prepared via a solution combustion method using cetyltrimethylammonium bromide (CTAB) as template. These nanomaterial samples characterized by X-ray diffraction (XRD), ultraviolet-visible diffuse reflectance spectroscopy (UV-vis DRS), Fourier-transform infrared (FTIR), Raman spectroscopy, photoelectron microscopy (XPS), transmittance electron (TEM), scanning (SEM) analysis. XRD patterns confirmed the purity crystalline nature of samples. FTIR spectra observed metal-oxygen (M-O) bond formation. UV-vis DRS studies performed to investigate optical properties bandgap energy determination. The surface morphology size Fe3O4, determined TEM SEM Under optimum experimental conditions, applied for photocatalytic activity against Methylene blue dye. visible light irradiation, nanostructures showed an efficient degradation 92% organic dye excellent stability multiple cycles reuse.

Язык: Английский

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Development of BaMnO3 nanoparticles embedded on rGO nanosheets via facile hydrothermal route to improve water oxidation

International Journal of Hydrogen Energy, Год журнала: 2024, Номер 68, С. 970 - 978

Опубликована: Май 1, 2024

Язык: Английский

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Chemical dealloying derived nanoporous FeCoNiCuTi high-entropy bifunctional electrocatalysts for highly efficient overall water splitting under alkaline conditions

Chemical Engineering Journal, Год журнала: 2024, Номер 492, С. 152145 - 152145

Опубликована: Май 11, 2024

Язык: Английский

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Fabrication of efficient MnTe/rGO composite by using sonication method for hybrid supercapacitor devices

Journal of Energy Storage, Год журнала: 2025, Номер 110, С. 115231 - 115231

Опубликована: Янв. 5, 2025

Язык: Английский

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A photovoltaic-electrolysis system with high solar-to-hydrogen efficiency under practical current densities

Science Advances, Год журнала: 2025, Номер 11(9)

Опубликована: Фев. 26, 2025

The photovoltaic-alkaline water (PV-AW) electrolysis system offers an appealing approach for large-scale green hydrogen generation. However, current PV-AW systems suffer from low solar-to-hydrogen (STH) conversion efficiencies (e.g., <20%) at practical densities >100 mA cm −2 ), rendering the produced H 2 not economical. Here, we designed and developed a highly efficient that mainly consists of customized, state-of-the-art AW electrolyzer concentrator photovoltaic (CPV) receiver. anodic oxygen evolving catalyst, consisting iron oxide/nickel (oxy)hydroxide (Fe O 3 -NiO x y ) composite, enables customized with unprecedented catalytic performance 1 A 1.8 V 0.37 kgH /m hour −1 48 kWh/kgH ). Benefiting superior performance, integrated CPV-AW reaches very high STH efficiency up to 29.1% (refer 30.3% if lead resistance losses are excluded) large densities, surpassing all previously reported PV-electrolysis systems.

Язык: Английский

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Achieving Negatively Charged Pt Single Atoms on Amorphous Ni(OH)2 Nanosheets with Promoted Hydrogen Absorption in Hydrogen Evolution

Nano-Micro Letters, Год журнала: 2024, Номер 16(1)

Опубликована: Май 23, 2024

Single-atom (SA) catalysts with nearly 100% atom utilization have been widely employed in electrolysis for decades, due to the outperforming catalytic activity and selectivity. However, most of reported SA are fixed through strong bonding between dispersed single metallic atoms nonmetallic substrates, which greatly limits controllable regulation electrocatalytic catalysts. In this work, Pt-Ni bonded Pt catalyst adjustable electronic states was successfully constructed a electrochemical reduction on coordination unsaturated amorphous Ni(OH)

Язык: Английский

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Strategic decolorization of rose bengal in an aqueous environment using a zinc oxide-loaded reduced graphene oxide photocatalyst

Journal of Physics and Chemistry of Solids, Год журнала: 2024, Номер 192, С. 112083 - 112083

Опубликована: Май 4, 2024

Язык: Английский

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Superhydrophilic/superaerophobic NiFe with internal bubble flow channels for electrocatalytic water splitting

Chemical Engineering Journal, Год журнала: 2024, Номер 488, С. 150953 - 150953

Опубликована: Апрель 2, 2024

Язык: Английский

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Enhanced electrochemical oxidation of 5-hydroxymethylfurfural over tailored nickel nanoparticle assembly

Applied Catalysis B Environment and Energy, Год журнала: 2024, Номер 353, С. 124086 - 124086

Опубликована: Апрель 17, 2024

Язык: Английский

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Linkage Engineering in Covalent Organic Frameworks for Metal‐Free Electrocatalytic C₂H₄ Production from CO₂

Angewandte Chemie International Edition, Год журнала: 2024, Номер 63(26)

Опубликована: Апрель 18, 2024

Electrocatalytic carbon dioxide reduction reaction (CO

Язык: Английский

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