Densely Stacked CoCu‒MOFs Coated with CuAl/LDH Enhance Sulfamethoxazole Degradation in PMS-Activated Systems DOI Creative Commons
Xin Zhong, Xiaojun Liu, Meihuan Ji

et al.

Nanomaterials, Journal Year: 2025, Volume and Issue: 15(6), P. 432 - 432

Published: March 11, 2025

As the most promising techniques for refractory antibiotic degradation in wastewater management, sulfate radical-based advanced oxidation processes (SR-AOPs) have attracted considerable attention. However, systematic studies on potassium peroxymonosulfate (PMS) activation by MOF-derived metal oxides coated with LDH materials are still lacking. In this work, a series of catalysts consisting CoCu-MOFs CuAl/LDH were synthesized PMS removal sulfamethoxazole (SMX). expected, catalyst showed high SMX and stability activation. CoCu/LDH/PMS reaction, was nearly 100% after 60 min, mineralization reached 53.7%. The excellent catalytic low leaching concentrations (Co: 0.013 mg/L, Cu: 0.313 mg/L), as detected ICP. Sulfate radicals hydroxyl identified dominant reactive species system. Moreover, presence 1O2 process revealed coupling non-radical radical processes. XPS results that layered structure CoCu/LDH promoted recycling ions (high valence), which facilitated heterogeneous effects different reaction conditions reuse cycles also determined. pathways proposed based intermediates LC/MS. activity provide new mechanistic understanding their potential utilization practical treatment.

Language: Английский

Densely Stacked CoCu‒MOFs Coated with CuAl/LDH Enhance Sulfamethoxazole Degradation in PMS-Activated Systems DOI Creative Commons
Xin Zhong, Xiaojun Liu, Meihuan Ji

et al.

Nanomaterials, Journal Year: 2025, Volume and Issue: 15(6), P. 432 - 432

Published: March 11, 2025

As the most promising techniques for refractory antibiotic degradation in wastewater management, sulfate radical-based advanced oxidation processes (SR-AOPs) have attracted considerable attention. However, systematic studies on potassium peroxymonosulfate (PMS) activation by MOF-derived metal oxides coated with LDH materials are still lacking. In this work, a series of catalysts consisting CoCu-MOFs CuAl/LDH were synthesized PMS removal sulfamethoxazole (SMX). expected, catalyst showed high SMX and stability activation. CoCu/LDH/PMS reaction, was nearly 100% after 60 min, mineralization reached 53.7%. The excellent catalytic low leaching concentrations (Co: 0.013 mg/L, Cu: 0.313 mg/L), as detected ICP. Sulfate radicals hydroxyl identified dominant reactive species system. Moreover, presence 1O2 process revealed coupling non-radical radical processes. XPS results that layered structure CoCu/LDH promoted recycling ions (high valence), which facilitated heterogeneous effects different reaction conditions reuse cycles also determined. pathways proposed based intermediates LC/MS. activity provide new mechanistic understanding their potential utilization practical treatment.

Language: Английский

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