Enhancement in Sulfamethoxazole Degradation via Efficient Heterogeneous Activation of Peracetic Acid by FeS DOI Open Access
Linyi Li, Yanlin Wu, Wenbo Dong

и другие.

Water, Год журнала: 2024, Номер 16(17), С. 2405 - 2405

Опубликована: Авг. 27, 2024

Peracetic acid (PAA) has attracted increasing attention in wastewater decontamination for yielding reactive oxygen species (ROS). In this study, mackinawite (FeS) was synthesized and applied as the heterogeneous catalyst PAA activation. Using sulfamethoxazole (SMX) target pollutant, influences of FeS dosage, dosage initial pH values on SMX degradation by FeS/PAA process were investigated. Under optimal conditions, could be completely removed within 5 min with apparent first-order rate constant (kobs) 7.71 × 10−4 s−1. Electron spin resonance spectroscopy (ESR) analysis radical scavenging experiments modulated to detect active species. During activation PAA, various components evidenced hydroxyl radicals (HO•), singlet (1O2), superoxide (O2•−) organic (R-O•, e.g., CH3C(O)O• CH3C(O)OO•), whereas HO• R-O• demonstrated dominant responsible abatement. Both dissolved Fe(II) ions sites surface proven activators abatement highly promoted a result. Furthermore, acidic displayed superior efficiency decomposition compared alkaline neutral conditions. Five pathways put forward toxicity byproducts further evaluated. Overall, study provided an efficient environmentally friendly approach using FeS, which might broaden its applicability remediation micropollutants.

Язык: Английский

Efficacy and mechanism of peracetic acid activation with CuFeS2 to degrade tetracycline: Synergy of copper and iron species DOI
Yulin Chen,

Danying Xing,

Yang Sui

и другие.

Journal of Water Process Engineering, Год журнала: 2025, Номер 70, С. 107042 - 107042

Опубликована: Янв. 20, 2025

Язык: Английский

Процитировано

1
Activation of peracetic acid by quinone for enhanced degradation of aqueous organic pollutants: Pivotal role of semiquinone radicals DOI
Jia Huang, Chao Gao, Libin Chen

и другие.

Separation and Purification Technology, Год журнала: 2025, Номер 361, С. 131418 - 131418

Опубликована: Янв. 5, 2025

Язык: Английский

Процитировано

0
Utilization of Natural Mineral Materials in Environmental Remediation: Processes and Applications DOI Open Access
Dongsheng Xu, Yongkui Yang, Li‐Hua Gan

и другие.

Minerals, Год журнала: 2025, Номер 15(3), С. 318 - 318

Опубликована: Март 19, 2025

The discharge of wastewater containing persistent organic pollutants presents significant ecological and health challenges due to their toxicity resilience. Recent advances in advanced oxidation processes (AOPs) other remediation mechanisms, notably utilizing natural mineral materials (NMMs), offer promising solutions these challenges. NMMs, with cost-effectiveness, accessibility, eco-friendly nature, non-toxicity, unique structural properties, have shown promise environmental could effectively replace conventional catalysts related applications. These minerals enable the activation oxidants, generating reactive oxygen species crucial for degradation pollutants. This article reviews mechanisms NMMs various AOPs, including photocatalysis, Fenton-like reactions, persulfate-activation-based processes, discusses potential enhancing pollutant efficiency, a focus on persulfates photo-induced redox processes. synergy between photocatalytic properties catalytic provided by offers robust approach managing water pollution without drawbacks secondary waste production, thus supporting sustainable efforts.

Язык: Английский

Процитировано

0
Enhancement in Sulfamethoxazole Degradation via Efficient Heterogeneous Activation of Peracetic Acid by FeS DOI Open Access
Linyi Li, Yanlin Wu, Wenbo Dong

и другие.

Water, Год журнала: 2024, Номер 16(17), С. 2405 - 2405

Опубликована: Авг. 27, 2024

Peracetic acid (PAA) has attracted increasing attention in wastewater decontamination for yielding reactive oxygen species (ROS). In this study, mackinawite (FeS) was synthesized and applied as the heterogeneous catalyst PAA activation. Using sulfamethoxazole (SMX) target pollutant, influences of FeS dosage, dosage initial pH values on SMX degradation by FeS/PAA process were investigated. Under optimal conditions, could be completely removed within 5 min with apparent first-order rate constant (kobs) 7.71 × 10−4 s−1. Electron spin resonance spectroscopy (ESR) analysis radical scavenging experiments modulated to detect active species. During activation PAA, various components evidenced hydroxyl radicals (HO•), singlet (1O2), superoxide (O2•−) organic (R-O•, e.g., CH3C(O)O• CH3C(O)OO•), whereas HO• R-O• demonstrated dominant responsible abatement. Both dissolved Fe(II) ions sites surface proven activators abatement highly promoted a result. Furthermore, acidic displayed superior efficiency decomposition compared alkaline neutral conditions. Five pathways put forward toxicity byproducts further evaluated. Overall, study provided an efficient environmentally friendly approach using FeS, which might broaden its applicability remediation micropollutants.

Язык: Английский

Процитировано

2