Related references
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(2022)
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Xiaoxian Zheng et al.
Summary: This article reviews the recent research progress on various metal-based catalysts for persulfate (PS) and peroxymonosulfate (PMS) activation, highlighting their activation mechanisms and fundamental behaviors in eliminating contaminants through radical and non-radical reaction pathways. Metal-based materials have been proven to be effective heterogeneous catalysts for degrading a wide range of organic pollutants, showing potential for practical applications in environmental remediation.
CHEMICAL ENGINEERING JOURNAL
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Muhammad Saeed et al.
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NEW JOURNAL OF CHEMISTRY
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Sun Liang et al.
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ENVIRONMENTAL RESEARCH
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Bo Li et al.
Summary: Sulfate radical based advanced oxidation processes (SR-AOPs) have become a popular and efficient technology for the degradation of organic contaminants. Cobalt is considered as the most reactive and efficient non-noble metal catalyst for activating persulfate to produce sulfate radicals. In order to overcome the limitations of homogeneous catalytic systems, heterogeneous cobalt-containing catalysts have been developed. This paper provides an overview of the strategies for enhancing persulfate activation by heterogeneous cobalt-containing catalysts, as well as future perspectives of heterogeneous SR-AOPs systems catalyzed by cobalt-containing catalysts.
Review
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Hongwei Luo et al.
Summary: Advanced oxidation processes (AOPs) are widely used in wastewater treatment for the removal of organic pollutants, with iron-based catalysts being particularly effective in enhancing reaction efficiency. Additionally, the supplementation of light, electricity, and reducing agents can improve the redox cycle of iron and increase the generation of in situ H2O2, thereby enhancing the reactivity of iron-based materials in AOPs.
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Kunjie Hou et al.
Summary: Iron-based materials are widely utilized as effective activators in persulfate-based oxidation processes. However, there are ambiguities and controversies surrounding the activation mechanisms by these materials. This review clarifies these theories, analyzes electron transport pathways, activator evolution, and identifies knowledge gaps and future research prospects in this field. It significantly enhances understanding and provides insights for researchers using iron-based materials for persulfate activation.
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SCIENCE OF THE TOTAL ENVIRONMENT
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Summary: In this study, a facile method was reported to generate outstanding Fe-Cu alloys with remarkable Fenton-like catalytic performance. The degradation ability of Fe-Cu alloy mainly comes from the Fe2+/H2O2 reaction, while the Cu components play a notable assistant role in the process.
APPLIED CATALYSIS B-ENVIRONMENTAL
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Jia Li et al.
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JOURNAL OF CONTAMINANT HYDROLOGY
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Aqsa Fayyaz et al.
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CHEMICAL ENGINEERING JOURNAL
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Ansaf Karim et al.
Summary: This review summarizes the application of different iron-activated persulfate systems in removing organic pollutants and metals in water and soil, discusses the chemistry behind the activation of persulfate by iron-based materials, and explores the ability of this system to reduce metal presence in soil and wastewater.
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Joao Peres Ribeiro et al.
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Dariusz Kiejza et al.
Summary: There has been a growing interest in using advanced oxidation processes for water and wastewater decontamination, with new oxidants such as peracetic acid widely utilized. The degradation of organic compounds involves radicals derived from the activation of peracids, resulting in the formation of products of lower mass, less toxic, and more susceptible to biodegradation. The activation methods and matrix composition have a significant impact on the efficiency of contamination removal using peracids.
SCIENCE OF THE TOTAL ENVIRONMENT
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Yanyan Su
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SCIENCE OF THE TOTAL ENVIRONMENT
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Sun Liang et al.
Summary: In this study, magnetic mesoporous silica spheres (MMSS) were successfully prepared by the surface-protected etching method, allowing for efficient activation of persulfate to degrade methylene blue. The MMSS exhibited good surface wettability, high specific surface area, and stability over multiple cycles of reuse. Systematic investigations into the effect of various factors revealed that MMSS is a promising candidate for efficient removal of organic dyes.
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Yangju Li et al.
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Article
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Yanli Zhu et al.
Summary: The study found that PMS was more efficient than PS, with Cu being the best activator for PS and Co the best activator for PMS. The use of H2O2 can improve Rhb removal but is harmful to seed germination.
ENVIRONMENTAL SCIENCE AND POLLUTION RESEARCH
(2021)
Article
Chemistry, Physical
Urooj Kamran et al.
Summary: In this study, a simple methodology was developed to produce highly porous carbons with optimized adsorption features for carbon dioxide. By combining hydrothermal method with chemical activation, the prepared adsorbent exhibited high specific surface area, abundant microporosity, and efficient CO2 adsorption uptake. The presence of ultra-micropores, high surface area, and nitrogen content contributed to the excellent CO2 adsorption performance of the optimized adsorbent.
JOURNAL OF COLLOID AND INTERFACE SCIENCE
(2021)
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Chemistry, Multidisciplinary
Farshid Ghanbari et al.
Summary: The study found that the PMS/O-3/UV process showed high efficiency in removing hazardous materials such as TOC, COD, color, and ammonia from polluted landfill leachate. The addition of ferrous ions increased TOC removal efficiency, while cobalt ions had no significant effect. The process followed a pseudo-first-order kinetic model with a reaction rate constant of 0.0203 min(-1). Compared to peroxone/UV, PMS/O-3/UV demonstrated superior performance in removing pollutants from low volume polluted water.
KOREAN JOURNAL OF CHEMICAL ENGINEERING
(2021)
Review
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Wenqi Wang et al.
Summary: With the continuous development of industrialization, more refractory organic pollutants are released into the environment, posing serious risks to human health and wildlife. The sulfate radical-based advanced oxidation technology is widely applied in organic pollutants treatment due to its high efficiency and eco-friendly nature. Various methods for persulfate and per-oxymonosulfate activation, identification of reactive oxygen species, toxicity of degradation intermediates, and detoxification and mineralization of target pollutants induced by different reactive oxygen species are comprehensively summarized.
SCIENCE OF THE TOTAL ENVIRONMENT
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Engineering, Chemical
Naef A. A. Qasem et al.
Summary: Removal of heavy metal ions from wastewater is crucial for a clean environment and human health, with methods including adsorption, membrane, chemical, electric, and photocatalytic treatments. Recent studies have mainly focused on adsorption techniques, facing challenges in removing different ion types concurrently, high retention time, and cycling stability of adsorbents.
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Renfeng Huang et al.
Summary: This study found that oxygen vacancies promote the oxidation activity of PMS, effectively tuning activation pathways for efficient pollutant removal, providing theoretical guidance for the design of efficient water treatment catalysts.
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