Insight into the extremely different catalytic behaviors of asymmetric and symmetric oxygen vacancies for peroxymonosulfate activation

Liu, Shan-Shan; Fu, Huifen; Wang, Fei; Wei, Yuwei; Meng, Bingxin; Wang, Peng; Zhao, Chen; Liu, Wen; Wang, Chong-Chen

doi:10.1016/j.apcatb.2024.123753

Applied Catalysis B: Environment and Energy

2024

DOI: 10.1016/j.apcatb.2024.123753

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Insight into the extremely different catalytic behaviors of asymmetric and symmetric oxygen vacancies for peroxymonosulfate activation

Shan-Shan Liu,

Huifen Fu,

Fei Wang

et al.

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Cited by 22 publications

References 69 publications

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Activation of Peroxymonosulfate by a Mn_0.7Co_0.5O₂@C Catalyst for the Degradation of Tetracycline

Huang,

Zhou,

Zhang

et al. 2024

ChemistrySelect

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Persulfate advanced oxidation technologyshows great potential in the removal of organic pollutants. Inthis study, a Mn0.7Co0.5O2@C catalyst wassynthesized from MnCO3‐ZIF‐67 precursor via calcination and employedto activate peroxymonosulfate (PMS) for the degradation of tetracycline (TC).The catalyst, characterized by a plethora of active sites and superior electrontransfer capabilities, mitigated the sluggish reaction kinetics associated withweak electron transfer. Degradation experiments demonstrated an 87.54% removalefficiency within 60 minutes using 10 mg of catalyst, outperforming PMS aloneby 2.3‐fold. The Mn0.7Co0.5O2@C/PMS system'ssynergistic effects and mechanisms were elucidated, with experiments confirmingthe generation of reactive species including singlet oxygen (1O2), sulfate radicals (SO4•−), and hydroxyl radicals (•OH).The catalyst's exceptional performance is attributed to the valence cycling ofMn and Co ions, facilitating PMS activation and the production of radicals. Additionally, the lattice oxygen within the catalyst is oxidized to form reactive oxygenspecies, which, in conjunction with oxygen vacancies, react with PMS to producenon‐radical species (1O2). The synergistic oxidationeffects of these free radicals and non‐radicals ultimately facilitate theremoval of TC, offering a novel approach for the treatment of organicwastewater with persulfate‐based advanced oxidation processes.

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Activation of Peroxymonosulfate by a Mn_0.7Co_0.5O₂@C Catalyst for the Degradation of Tetracycline

Huang,

Zhou,

Zhang

et al. 2024

ChemistrySelect

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Recent Advancements in Electrochemical Sensors Based on MOFs and Their Derivatives

Hao,

Song,

Wang

et al. 2024

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Metal‐organic frameworks (MOFs) are composed of metal nodes and organic linkers that can self‐assemble into an infinite network. The high porosity and large surface area of MOFs facilitate the effective enrichment and mass transfer of analytes, which can enhance the signal response and improve the sensitivity of electrochemical sensors. Additionally, MOFs and their derivatives possess the properties of unsaturated metal sites and tunable structures, collectively demonstrating their potential for electrochemical sensing. This paper summarizes the preparation methods, structural properties, and applications of MOFs and their derivatives in electrochemical sensing, emphasizing sensors’ selectivity and sensitivity from the perspectives of direct and indirect detection. Additionally, it also explores future directions and prospects for MOFs in electrochemical sensing, with the aim of overcoming current limitations through innovative approaches.

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Efficient Degradation of Sulfamethoxazole via Reactive Oxygen Species Produced from Activated Peroxymonosulfate by MgCoFe-LDO Catalyst

Shang,

Feng,

Wang

2024

Catal Lett

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Insight into the extremely different catalytic behaviors of asymmetric and symmetric oxygen vacancies for peroxymonosulfate activation

Cited by 22 publications

References 69 publications

Activation of Peroxymonosulfate by a Mn_0.7Co_0.5O₂@C Catalyst for the Degradation of Tetracycline

Activation of Peroxymonosulfate by a Mn_0.7Co_0.5O₂@C Catalyst for the Degradation of Tetracycline

Recent Advancements in Electrochemical Sensors Based on MOFs and Their Derivatives

Efficient Degradation of Sulfamethoxazole via Reactive Oxygen Species Produced from Activated Peroxymonosulfate by MgCoFe-LDO Catalyst

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Insight into the extremely different catalytic behaviors of asymmetric and symmetric oxygen vacancies for peroxymonosulfate activation

Cited by 22 publications

References 69 publications

Activation of Peroxymonosulfate by a Mn0.7Co0.5O2@C Catalyst for the Degradation of Tetracycline

Activation of Peroxymonosulfate by a Mn0.7Co0.5O2@C Catalyst for the Degradation of Tetracycline

Recent Advancements in Electrochemical Sensors Based on MOFs and Their Derivatives

Efficient Degradation of Sulfamethoxazole via Reactive Oxygen Species Produced from Activated Peroxymonosulfate by MgCoFe-LDO Catalyst

Contact Info

Product

Resources

About

Activation of Peroxymonosulfate by a Mn_0.7Co_0.5O₂@C Catalyst for the Degradation of Tetracycline

Activation of Peroxymonosulfate by a Mn_0.7Co_0.5O₂@C Catalyst for the Degradation of Tetracycline