Recent advances in persulfate-based advanced oxidation processes for organic wastewater treatment

Tian, Ke; Hu, Lianzhe; Li, Letian; Zheng, Qingzhu; Xin, Yanjun; Zhang, Guangshan

doi:10.1016/j.cclet.2021.12.042

Cited by 173 publications

(31 citation statements)

References 162 publications

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“…The PS-AOPs dominated by radical pathways have evolved for decades in the laboratory and practical applications with numerous reviews. [12,160] Therefore, this section mainly focuses on the nonradical pathways in the DMSCs/PS system. The nonradical pathway can perform better pH adaptability, higher selectivity, and greater resistance to environmental interference (such as natural organic matter, inorganic anions, etc.)…”

Section: Mechanisms Of Dmscs In Ps Activationmentioning

confidence: 99%

Recent Advance of Atomically Dispersed Dual‐Metal Sites Carbocatalysts: Properties, Synthetic Materials, Catalytic Mechanisms, and Applications in Persulfate‐Based Advanced Oxidation Process

Wei

Cui

et al. 2023

Adv Funct Materials

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Recently, atomically dispersed dual‐metal sites carbocatalysts (DMSCs) make a wave in the field of persulfate‐based advanced oxidation processes (PS‐AOPs) in light of their ≈100% atomic utilization efficiency, high density of active sites, and superior catalytic activity. This review aims to provide a state‐of‐the‐art overview on the development of DMSCs for activating PS. Initially, the types and properties of DMSCs are summarized, as well as the role of doping different heteroatoms is discussed. Subsequently, the properties of different carbon carriers and the methods for the synthesis of DMSCs are outlined. After that, the mechanism and application of DMSCs for the activation of PS toward organic contaminants degradation are revealed. Particularly, the mechanism of nonradical pathway is described, and the necessity of coupling DMSCs‐based PS‐AOPs to other processes for practical water treatment is emphasized. Finally, the formidable challenges and future research directions of DMSCs are proposed. This review is expected to provide insight into the preparation of DMSCs in the field of nanomaterials and to broaden the path for their environmental applications.

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Section: Mechanisms Of Dmscs In Ps Activationmentioning

confidence: 99%

Recent Advance of Atomically Dispersed Dual‐Metal Sites Carbocatalysts: Properties, Synthetic Materials, Catalytic Mechanisms, and Applications in Persulfate‐Based Advanced Oxidation Process

Wei

Cui

et al. 2023

Adv Funct Materials

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“…Therefore, the aim of this study was to use sulfate radicals for oxidation. [11] In the study persulfate oxidation was conducted in a 100 mL sample volume and natural sample pH. The heat activation method was used to produce SO 4 ratio (g g -1 ), namely, 1:0.5, 1:1, 1:1.5, 1:2, and 1:2.5.…”

Section: Wastewater Characterizationmentioning

confidence: 99%

“…In the literature, this method has been successfully applied for the treatment of wastewater such as antibiotic-containing wastewater, pharmaceuticals and personal care products, dyes, endocrine disrupting chemicals, chlorinated organic pollutants, and phenolics. [11] After activation of PS with temperature, cephalosporin was removed with more than 90% efficiency [12] with alkali activation, dichloromethane was removed with an efficiency of over 99% [13] with UV activation, ciprofloxacin was removed with 100% efficiency, [14] and sulfamethazine was removed with 100% efficiency by activation with transition metals. [15] Huang et al [16] compared the treatment of leachate using different methods, including UV/PS, UV alone, PS alone, and found that the UV/PS process resulted in the best removal efficiency.…”

mentioning

confidence: 99%

Process characterization and pretreatment of container and drum cleaning industry wastewater using a heat‐activated persulfate oxidation process

Güneş

Çifçi

Çelik

2023

CLEAN Soil Air Water

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The aim of this study was to treat wastewater from washing, cutting or crushing of intermediate bulk containers (IBCs), steel drums and plastic drums, using the sulfate radical-based oxidation method. In this study, it was planned to make the wastewater suitable for activated sludge treatment by applying neutralization after a sulfate radical-based oxidation process. Samples were taken from the industry three times to study these treatment processes. To determine the optimum conditions in the study, chemical oxygen demand (COD), removal efficiency was calculated, and optimum temperature, optimum time, and optimum persulfate dose were determined. Since the washing is done with hot water in the industry, the thermal activation method was used for the activation of persulfate. In the results of the study, COD removal efficiency, and total organic carbon (TOC), biochemical oxygen demand (BOD), total nitrogen (TN), total phosphorus (TP), and potentially toxic metal(s) removal efficiency was measured in three wastewater samples. According to the results of the study, the temperature at which the best COD removal efficiency was observed was 70 • C, the COD/S 2 O 8 2− ratio was 1:2, and the contact time was 5 h. As a result of the study, it has been revealed that such wastewater can be given to the activated sludge after sulfate radical-based oxidation and neutralization in the same existing reactor instead of the existing FeCl 3 process.

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“…For the oxidation of organic molecules, AOPs rely on the in situ generation of potent oxidants (reactive oxygen species, ROS) such as hydroxyl or sulfate radicals. AOPs have been broadly categorised in terms of how ROS are produced, including non-photochemical techniques, such as chemical, radiation-induced, cavitation, electrochemical techniques, and photochemical processes [11,[15][16][17].…”

Section: Review Introductionmentioning

confidence: 99%

Bismuth-based nanostructured photocatalysts for the remediation of antibiotics and organic dyes

Oladipo¹,

Mustafa²

2023

Beilstein J. Nanotechnol.

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A serious threat to human health and the environment worldwide, in addition to the global energy crisis, is the increasing water pollution caused by micropollutants such as antibiotics and persistent organic dyes. Nanostructured semiconductors in advanced oxidation processes using photocatalysis have recently attracted a lot of interest as a promising green and sustainable wastewater treatment method for a cleaner environment. Due to their narrow bandgaps, distinctive layered structures, plasmonic, piezoelectric and ferroelectric properties, and desirable physicochemical features, bismuth-based nanostructure photocatalysts have emerged as one of the most prominent study topics compared to the commonly used semiconductors (TiO2 and ZnO). In this review, the most recent developments in the use of photocatalysts based on bismuth (e.g., BiFeO3, Bi2MoO6, BiVO4, Bi2WO6, Bi2S3) to remove dyes and antibiotics from wastewater are thoroughly covered. The creation of Z-schemes, Schottky junctions, and heterojunctions, as well as morphological modifications, doping, and other processes are highlighted regarding the fabrication of bismuth-based photocatalysts with improved photocatalytic capabilities. A discussion of general photocatalytic mechanisms is included, along with potential antibiotic and dye degradation pathways in wastewater. Finally, areas that require additional study and attention regarding the usage of photocatalysts based on bismuth for removing pharmaceuticals and textile dyes from wastewater, particularly for real-world applications, are addressed.

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Recent advances in persulfate-based advanced oxidation processes for organic wastewater treatment

Cited by 173 publications

References 162 publications

Recent Advance of Atomically Dispersed Dual‐Metal Sites Carbocatalysts: Properties, Synthetic Materials, Catalytic Mechanisms, and Applications in Persulfate‐Based Advanced Oxidation Process

Recent Advance of Atomically Dispersed Dual‐Metal Sites Carbocatalysts: Properties, Synthetic Materials, Catalytic Mechanisms, and Applications in Persulfate‐Based Advanced Oxidation Process

Process characterization and pretreatment of container and drum cleaning industry wastewater using a heat‐activated persulfate oxidation process

Bismuth-based nanostructured photocatalysts for the remediation of antibiotics and organic dyes

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