Mope Edwin Malefane, Potlako John Mafa, Muthumuni Managa, Thabo Thokozani Innocent Nkambule, Alex Tawanda Kuvarega
{"title":"Boosted Persulfate Activation Using Ba2CoMnO5 and LDH/CaCO3 for Amoxicillin Degradation: A Comparative Study","authors":"Mope Edwin Malefane, Potlako John Mafa, Muthumuni Managa, Thabo Thokozani Innocent Nkambule, Alex Tawanda Kuvarega","doi":"10.1002/adsu.202400434","DOIUrl":null,"url":null,"abstract":"<p>Sulfate radicals based advanced oxidation processes (SR-AOPs) have gained attention recently due to their high mineralization capability in environmental remediation. The high persulfate (PS) activation activity of cobalt-based semiconductors has epitomized them as preferred catalysts for SR-AOPs but shortcomings such as leaching, and loss of catalytic active sites limit their applicability. Herein, two different strategies are employed to minimize leaching and improve charge transportation and separation for efficient PS activation under visible light irradiation using LDH/CaCO<sub>3</sub>/PS and Ba<sub>2</sub>CoMnO<sub>5</sub>/PS AOP systems synthesized by solid state method. LDH/CaCO<sub>3</sub>/PS achieved 17.9% higher reaction rate than Ba<sub>2</sub>CoMnO<sub>5</sub>/PS for degradation of amoxicillin (AMX) with higher TOC mineralization efficacy. Despite SO<sub>4</sub><sup>•−</sup> and OH<sup>•</sup> existence and involvement in both systems, the degradation pathways mapped from QTOF-HPLC-MS data demonstrated formation of different pathways during AMX mineralization. This work demonstrates novel fabrication of brownmillerite double layered perovskite and insulator supported LDH for environmental pollution remediation.</p>","PeriodicalId":7294,"journal":{"name":"Advanced Sustainable Systems","volume":"9 1","pages":""},"PeriodicalIF":6.5000,"publicationDate":"2024-10-08","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"https://onlinelibrary.wiley.com/doi/epdf/10.1002/adsu.202400434","citationCount":"0","resultStr":null,"platform":"Semanticscholar","paperid":null,"PeriodicalName":"Advanced Sustainable Systems","FirstCategoryId":"88","ListUrlMain":"https://onlinelibrary.wiley.com/doi/10.1002/adsu.202400434","RegionNum":3,"RegionCategory":"材料科学","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":null,"EPubDate":"","PubModel":"","JCR":"Q2","JCRName":"GREEN & SUSTAINABLE SCIENCE & TECHNOLOGY","Score":null,"Total":0}
引用次数: 0
Abstract
Sulfate radicals based advanced oxidation processes (SR-AOPs) have gained attention recently due to their high mineralization capability in environmental remediation. The high persulfate (PS) activation activity of cobalt-based semiconductors has epitomized them as preferred catalysts for SR-AOPs but shortcomings such as leaching, and loss of catalytic active sites limit their applicability. Herein, two different strategies are employed to minimize leaching and improve charge transportation and separation for efficient PS activation under visible light irradiation using LDH/CaCO3/PS and Ba2CoMnO5/PS AOP systems synthesized by solid state method. LDH/CaCO3/PS achieved 17.9% higher reaction rate than Ba2CoMnO5/PS for degradation of amoxicillin (AMX) with higher TOC mineralization efficacy. Despite SO4•− and OH• existence and involvement in both systems, the degradation pathways mapped from QTOF-HPLC-MS data demonstrated formation of different pathways during AMX mineralization. This work demonstrates novel fabrication of brownmillerite double layered perovskite and insulator supported LDH for environmental pollution remediation.
期刊介绍:
Advanced Sustainable Systems, a part of the esteemed Advanced portfolio, serves as an interdisciplinary sustainability science journal. It focuses on impactful research in the advancement of sustainable, efficient, and less wasteful systems and technologies. Aligned with the UN's Sustainable Development Goals, the journal bridges knowledge gaps between fundamental research, implementation, and policy-making. Covering diverse topics such as climate change, food sustainability, environmental science, renewable energy, water, urban development, and socio-economic challenges, it contributes to the understanding and promotion of sustainable systems.