Organic pollutant degradation via novel ZnCo2O4-embedded grafted waste polystyrene foam as heterogeneous catalysts for PMS activation DOI Creative Commons
Asmaa A. Roshdy, E.A. Elsharaky,

Ahmed H. Elged

et al.

Applied Water Science, Journal Year: 2025, Volume and Issue: 15(5)

Published: April 7, 2025

Abstract This study aimed to design and fabricate high-performance heterogeneous polymeric composites via in-situ polymerization, utilizing waste polystyrene-co-methacrylic acid functionalized with zinc cobalt oxide (ZC) at varying loadings (10, 15 30 wt %), designated as m-WZC 10 , respectively. Additionally, polystyrene (W) underwent methacrylic grafting in the absence of oxide, serving a control reference material, denoted m-W, evaluate impact ZC incorporation on composite’s structural catalytic properties. The synthesized polymers were employed for poroxymonosulfate activation (PMS) removal methylene blue (MB) from wastewater streams. Through systematic experimentation, we compared three different (m-WZC ) by optimizing key degradation parameters, including PMS dose, pH, temperature, initial MB concentration, effect ions. Among them, exhibited optimal performance, achieving 99.89% within just min an concentration 20 mg/L. Under conditions further expanded its scope investigating efficacy degrading other pollutants, methyl red (MR), orange (MO), rhodamine B (RB), p-nitrophenol (PNP). catalysis excellent activity, rates 99.76%, 99.0%, 98.3%, 97.8% these Stability experiments revealed that rate achieved remained consistently high, reaching 97% even after 5 cycles. Furthermore, no noticeable changes observed crystalline phase structure throughout experimental under established conditions, demonstrated remarkable versatility emerged promising candidate water purification endeavors.

Language: Английский

Organic pollutant degradation via novel ZnCo2O4-embedded grafted waste polystyrene foam as heterogeneous catalysts for PMS activation DOI Creative Commons
Asmaa A. Roshdy, E.A. Elsharaky,

Ahmed H. Elged

et al.

Applied Water Science, Journal Year: 2025, Volume and Issue: 15(5)

Published: April 7, 2025

Abstract This study aimed to design and fabricate high-performance heterogeneous polymeric composites via in-situ polymerization, utilizing waste polystyrene-co-methacrylic acid functionalized with zinc cobalt oxide (ZC) at varying loadings (10, 15 30 wt %), designated as m-WZC 10 , respectively. Additionally, polystyrene (W) underwent methacrylic grafting in the absence of oxide, serving a control reference material, denoted m-W, evaluate impact ZC incorporation on composite’s structural catalytic properties. The synthesized polymers were employed for poroxymonosulfate activation (PMS) removal methylene blue (MB) from wastewater streams. Through systematic experimentation, we compared three different (m-WZC ) by optimizing key degradation parameters, including PMS dose, pH, temperature, initial MB concentration, effect ions. Among them, exhibited optimal performance, achieving 99.89% within just min an concentration 20 mg/L. Under conditions further expanded its scope investigating efficacy degrading other pollutants, methyl red (MR), orange (MO), rhodamine B (RB), p-nitrophenol (PNP). catalysis excellent activity, rates 99.76%, 99.0%, 98.3%, 97.8% these Stability experiments revealed that rate achieved remained consistently high, reaching 97% even after 5 cycles. Furthermore, no noticeable changes observed crystalline phase structure throughout experimental under established conditions, demonstrated remarkable versatility emerged promising candidate water purification endeavors.

Language: Английский

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