Utilization of Stable and Efficient High‐Entropy (Ni_0.2Zn_0.2Mg_0.2Cu_0.2Co_0.2)Al₂O₄ Catalyst with Polyvalent Transition Metals to Boost Peroxymonosulfate Activation toward Pollutant Degradation

Small, Journal Year: 2025, Volume and Issue: unknown

Published: Jan. 23, 2025

Abstract A polyacrylamide gel method has been used to synthesize a variety of polyvalent‐transition‐metal‐doped Ni position high entropy spinel oxides (Ni 0.2 Zn Mg Cu Co )Al 2 O 4 ‐800 °C (A ) on the basis NiAl , and catalytic activity is studied under synergistic action peroxymonosulfate (PMS) activation simulated sunlight. The containing polyvalent transition metals 2+ can effectively activate PMS efficiently degrade levofloxacin (LEV) tetracycline hydrochloride (TCH) sunlight irradiation. After 90 min light exposure, degradation percentages LEV (50 mg L −1 TCH (100 by /PMS/vis system reach 87.0% 90.2%, respectively. superoxide radicals, photoinduced holes, singlet dominate process, while hydroxyl radicals sulfate play only small role. adsorption energy charge density difference between different systems are calculated functional theory, efficiency combining with change length O─O bond after adsorption. mechanism proposed, which provides new idea for study in field catalysis.

Language: Английский

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Ba0.5Sr0.5TiO3/BaFe12O19 magnetic separation photocatalysts: Structural, optical, microstructure, photocatalytic activity, degradation pathway and mechanism

Ceramics International, Journal Year: 2023, Volume and Issue: 49(23), P. 37967 - 37982

Published: Sept. 15, 2023

Language: Английский

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In-depth study of the dry-anodizing process on Ti6Al4V alloys: Effect of the acid content and electrical parameters

Surface and Coatings Technology, Journal Year: 2025, Volume and Issue: unknown, P. 131767 - 131767

Published: Jan. 1, 2025

Language: Английский

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Enhanced Antibacterial and Aesthetic Properties of Ti3AlC2 Ceramics via Anodic Oxidation

Ceramics International, Journal Year: 2025, Volume and Issue: unknown

Published: April 1, 2025

Language: Английский

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Promoted photocatalytic performances over Ti3+-B co-doped TiO2/BN with high carrier transfer and absorption capabilities driven by SWCNT addition

Materials Science in Semiconductor Processing, Journal Year: 2024, Volume and Issue: 177, P. 108364 - 108364

Published: March 24, 2024

Language: Английский

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Microstructure and coloration mechanism of TC11 aerospace titanium alloy ultra-thin thermal oxide films

Journal of Materials Research and Technology, Journal Year: 2024, Volume and Issue: 30, P. 5312 - 5322

Published: April 30, 2024

This study explores the microstructure and coloration mechanism of high-saturation structural colors in ultra-thin oxide films formed on TC11 aerospace titanium alloy near permissible engineering temperatures. Utilizing optical microscopy (OM), spectrophotometry, scanning electron (SEM), X-ray photoelectron spectroscopy (XPS), focused ion beam (FIB), transmission (TEM), energy dispersive spectrometer (EDS), properties, thickness, were examined. The research posits a theory grounded zero-order Fabry-Pérot resonance-enhanced absorption. Key findings reveal color transition from golden to light blue as oxidation conditions vary 450 °C for 5 hours 550 60 hours, with an average thickness ranging 16.3 nm 63.4 nm. Despite changes conditions, film's structure remains consistent uniform. It predominantly consists Brookite-type TiO2, TiO Al2O3, trace amounts MoO2 MoO3. is independent its composition instead related influencing absorption wavelength per model, which closely matches observed wavelengths. Notably, acceleration between 30 at heralds commencement deviation film based cavity.

Language: Английский

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Corrosion and friction behaviours of MoSi2/MoS2 nanoparticles incorporated tinted coating on Ti6Al4V alloy

Surface and Coatings Technology, Journal Year: 2023, Volume and Issue: 477, P. 130292 - 130292

Published: Dec. 14, 2023

Language: Английский

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Preparation and optical characterization of 3D-TiO2 thin films with brilliant colors

Applied Surface Science, Journal Year: 2024, Volume and Issue: unknown, P. 161315 - 161315

Published: Sept. 1, 2024

Language: Английский

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Color stability of the abrasive Si/SiO2 films

Ceramics International, Journal Year: 2024, Volume and Issue: unknown

Published: Dec. 1, 2024

Language: Английский

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Improving the Photoelectrochemical Response of Pure TiO2 Nanotube Array by Changing Anodization Voltage in Preparation Process

Current Chinese Science, Journal Year: 2024, Volume and Issue: 4(3), P. 214 - 221

Published: May 29, 2024

Introduction: Enhancing the photoelectrochemical response of TiO2 nanotube arrays (TNA) is crucial to improve efficiency solar energy utilization. In this work, TNA was prepared electrochemically by anodization at single voltages 20 V, 30 V and 40 as well a special two-step voltage V-20 V-40 respectively. X-ray diffraction (XRD) scanning electron microscopy (SEM) were used characterize morphology crystalline structure sample. Methods: The measured electrochemical potentiostatic technique. results show evenly aligns with increasing voltage. Results: However, there that does not form dispersed fragments on surface higher voltage, which adversely affects TNA’s properties. Conclusion: During process anodization, oxidation current changes due switch in A method enhances pure TNA's visible light.

Language: Английский

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