Catalytic performance of FeCo2O4 spinel cobaltite for degradation of ethylparaben in a peroxymonosulfate activation process: Response surface optimization, reaction kinetics and cost estimation

Journal of Molecular Structure, Journal Year: 2024, Volume and Issue: 1322, P. 140340 - 140340

Published: Oct. 10, 2024

Language: Английский

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Efficient Degradation of Tetracycline Hydrochloride by Activated Peroxymonosulfate with Pdo@Cufe2o4/Coal-Bearing Strata Kaolinite Composite

Published: Jan. 1, 2023

Abstract:The composite of 4%PdO@CuFe2O4/coal-bearing strata kaolinite (4%PdO@CFO/CK) was successfully prepared by simple hydrothermal method, and applied to the degradation tetracycline hydrochloride (TCH) in wastewater activating peroxonosulfate (PMS) under visible light. The synthesized catalysts were characterized XRD, FTIR, SEM, EDS, XPS BET. effects catalyst dosage, PMS pH initial solution other key parameters on TCH removal studied. results show that conditions 4.0, dosage 20 mg 1.5 mL, rate 4%PdO@CFO/CK+PMS+Vis system is as high 91.96% within min. In addition, stability reusability 4%PdO@CFO/CK confirmed, remained above 85% after three cycles. Finally, free radical capture experiments electron para-magnetic resonance (EPR) showed reactive oxygen species (ROS) involved 1O2, •O2−, h+, •OH SO4•−, mechanism proposed. conclusion, this work provides a promising potential for removing from system.

Language: Английский

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Enhancement of fire safety in epoxy resin composites through incorporation of microencapsulated diatomite

Journal of Applied Polymer Science, Journal Year: 2024, Volume and Issue: 141(14)

Published: Jan. 16, 2024

Abstract Diatomite (DIA) particles are commonly employed as flame‐retardant additives for polymers, yet their intrinsic inefficiency requires substantial quantities optimal efficacy. To address this issue, we proposed a novel approach involving the microencapsulation of DIA with polyethylene glycol phosphate (PEGP) to enhance flame retardancy epoxy resin (EP). Characterization prepared DIA@PEGP utilized scanning electron microscopy energy‐dispersive x‐ray spectrometry and Fourier transform infrared spectroscopy. The resulting EP composite, DIA@PEGP‐4/EP, achieved limiting oxygen index 33.2% V‐0 level in vertical combustion tests. Compared EP, DIA@PEGP‐4/EP demonstrated significantly improved fire performance, 38.6%, 47.8%, 25.0%, 41.3%, 60.4% reduction peak heat release rate, total release, smoke production production, CO yield. Furthermore, highest FPI value 0.080 m 2 ·s/kW DIA@PEGP‐1/EP lowest FGI 8.734 kW/m ·s indicate that incorporation into enhances its safety. mechanism DIA@PEGP‐4 involves formation phosphorus‐containing aromatic carbon layer during char formation, capturing radicals gas phase combustion.

Language: Английский

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Ultra-Fast Atrazine Degradation Through Synergistic Enhancement: Exploring the Synergistic Mechanism of Cofe2o4/Mxene and Thermal on Peroxymonosulfate Activation

Published: Jan. 1, 2024

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Language: Английский

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Efficient removal of levofloxacin by FeCo2O4@C-REC activated peroxymonosulfate: Performance and mechanism

Journal of Water Process Engineering, Journal Year: 2024, Volume and Issue: 69, P. 106777 - 106777

Published: Dec. 17, 2024

Language: Английский

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