Activation of peroxymonosulfate by CoFe2O4 loaded on metal-organic framework for the degradation of organic dye

Zhang, Ke; Sun, Dezhi; Chun, Ma; Wang, Guanlong; Dong, Xiaoli; Zhang, Xinxin

doi:10.1016/j.chemosphere.2019.125021

Cited by 93 publications

(19 citation statements)

References 65 publications

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“…Ethanol with α ‐hydrogen has a strong scavenging effect on both SO 4 ⋅ − and ⋅OH radicals. The reaction rate constants, as reported, are 1.6–7.7×10 7 M −2 s −1 and 1.2–2.8×10 9 M −2 s −1 , respectively [33] . The scavenging reaction rate constant of TBA without α‐hydrogen on the ⋅OH radical is 3.8–7.6×10 8 M −2 s −1 , which is 1000 times faster than that of SO 4 ⋅ − radical scavenging reaction.…”

Section: Resultsmentioning

confidence: 57%

“…The scavenging reaction rate constant of TBA without α‐hydrogen on the ⋅OH radical is 3.8–7.6×10 8 M −2 s −1 , which is 1000 times faster than that of SO 4 ⋅ − radical scavenging reaction. Therefore, TBA can effectively scavenge ⋅OH radical [33] . The degradation rate of MB decreased slightly after adding TBA in the yolk‐shell Co 3 O 4 @Fe 3 O 4 /C and PMS system.…”

Section: Resultsmentioning

confidence: 95%

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Yolk‐shell Co₃O₄@Fe₃O₄/C Nanocomposites as a Heterogeneous Fenton‐like Catalyst for Organic Dye Removal

Yang

Peng

Ahmed

et al. 2023

Chemistry A European J

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The yolk-shell Co 3 O 4 @Fe 3 O 4 /C nanocomposites with Co 3 O 4 as the core, Fe 3 O 4 /C as the shell, and a cavity structure were synthesized by the hard template method. The physical and chemical properties of the composites were characterized by SEM, TEM, XRD, TGA, XPS, BET, and VSM. The specific surface area of yolk-shell Co 3 O 4 @Fe 3 O 4 /C nanocomposites is 175.9 m 2 g À 1 , showing superparamagnetic properties. The yolk-shell Co 3 O 4 @Fe 3 O 4 /C nanocomposites were used as heterogeneous Fenton catalysts to activate peroxymonosulfate (PMS) to degrade MB, which showed high catalytic degradation performance. The degradation rate of MB reached 100 % within 30 min under the circumstances of the yolk-shell Co 3 O 4 @Fe 3 O 4 /C nanocomposites dosage of 0.1 g L À 1 , the PMS dosage of 1.0 g L À 1 , the initial MB concentration of 100 mg L À 1 , an initial pH of 5.5, and a temperature of 30 � 2 °C. The enhanced catalytic performance of the yolk-shell Co 3 O 4 @Fe 3 O 4 /C nanocomposites can be attributed to the synergistic effect of the two catalytically active materials and the middle cavity. The effects of different operating parameters and co-existing anion species on MB degradation were also investigated. Electron paramagnetic resonance (EPR) analysis and quenching experiments confirmed that the formation of SO 4 *À in the yolk-shell Co 3 O 4 @Fe 3 O 4 /C/PMS system contributes to MB degradation. In addition, yolk-shell Co 3 O 4 @Fe 3 O 4 /C nanocomposites can be easily separated from the pollutant solution under the action of an external magnetic field, and the degradation rate of MB can still reach 98 % after five cycles, indicating that it has good stability and reusability and has broad application prospects in the field of water purification.

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Section: Resultsmentioning

confidence: 57%

Section: Resultsmentioning

confidence: 95%

Yolk‐shell Co₃O₄@Fe₃O₄/C Nanocomposites as a Heterogeneous Fenton‐like Catalyst for Organic Dye Removal

Yang

Peng

Ahmed

et al. 2023

Chemistry A European J

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“…Thus, such electrostatic interaction is dominant in MOFs for dye adsorption. π–π interaction, hydrogen bonding, ion exchange, Lewis acid–base interaction, and physical adsorption are other interactions responsible for dye adsorption over MOFs [ 121 , 122 , 123 ].

…”

Section: Dye Adsorption and Kineticsmentioning

confidence: 99%

A Comprehensive Review on Adsorption, Photocatalytic and Chemical Degradation of Dyes and Nitro-Compounds over Different Kinds of Porous and Composite Materials

et al. 2023

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Dye and nitro-compound pollution has become a significant issue worldwide. The adsorption and degradation of dyes and nitro-compounds have recently become important areas of study. Different methods, such as precipitation, flocculation, ultra-filtration, ion exchange, coagulation, and electro-catalytic degradation have been adopted for the adsorption and degradation of these organic pollutants. Apart from these methods, adsorption, photocatalytic degradation, and chemical degradation are considered the most economical and efficient to control water pollution from dyes and nitro-compounds. In this review, different kinds of dyes and nitro-compounds, and their adverse effects on aquatic organisms and human beings, were summarized in depth. This review article covers the comprehensive analysis of the adsorption of dyes over different materials (porous polymer, carbon-based materials, clay-based materials, layer double hydroxides, metal-organic frameworks, and biosorbents). The mechanism and kinetics of dye adsorption were the central parts of this study. The structures of all the materials mentioned above were discussed, along with their main functional groups responsible for dye adsorption. Removal and degradation methods, such as adsorption, photocatalytic degradation, and chemical degradation of dyes and nitro-compounds were also the main aim of this review article, as well as the materials used for such degradation. The mechanisms of photocatalytic and chemical degradation were also explained comprehensively. Different factors responsible for adsorption, photocatalytic degradation, and chemical degradation were also highlighted. Advantages and disadvantages, as well as economic cost, were also discussed briefly. This review will be beneficial for the reader as it covers all aspects of dye adsorption and the degradation of dyes and nitro-compounds. Future aspects and shortcomings were also part of this review article. There are several review articles on all these topics, but such a comprehensive study has not been performed so far in the literature.

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“…Pei and co-workers fabricated a calcium alginate and gelatin coated Cu-BTC MOF composite by using 3D printing, and suggested a MB adsorption efficiency of 99.8% within 20 min by 0.5 g of this 3D-printed Cu-BTC MOF composite from 50 mL of MB solution at an initial concentration of 20 ppm, which was significantly higher than the MB adsorption efficiency of only 43.6% by alginategelatin scaffolds without MOF. [258] Doping functionalized materials for MOF composite development such as celerium, [259,260] titanium, [261] fumarate, [262] TiO2, [263,264] cellulose nanofibrous, [265] and peroxidase, [266,267] as well as magnetic basic materials [268][269][270] were also demonstrated to successfully improve dye absorption and removal efficiency. The MOF composites were also applied in determination and removal of antibiotics.…”

Section: Mof Compositesmentioning

confidence: 99%

Metal-organic Framework-based Materials: Synthesis, Stability and Applications in Food Safety and Preservation

Nong¹,

Liu²,

Wang³

et al. 2020

ES Food Agroforest

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Investigation on food safety and preservation is essential to provide high quality and safe food for human beings, including accurate determination and efficient removal of inorganic heavy metal ions and organic contaminants, as well as regulation of food postharvest ripening and intelligent sterilization. In the last two decades, metal-organic frameworks (MOFs), as functionalized porous materials, have aroused interests of researchers because of their advantages of high porosity, large specific surface area, flexible structure properties, and abundant binding sites for guest molecules. MOFs have shown great potentials in practical applications in food and related fields. In this overview, we summarized the MOF crystallization mechanisms, synthesis routes and methods, stability, as well as the applications in food contamination including removal of heavy metal ions, dyes, and antibiotics, and food preservation including regulation of fruit and vegetable ripening, removal of moisture and oxygen, and high-efficiency sterilization. Finally, two perspectives focusing on the development of MOFs for innovative food research, i.e., food-grade MOFs and MOF composites are suggested based on our understanding.

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Activation of peroxymonosulfate by CoFe2O4 loaded on metal-organic framework for the degradation of organic dye

Cited by 93 publications

References 65 publications

Yolk‐shell Co₃O₄@Fe₃O₄/C Nanocomposites as a Heterogeneous Fenton‐like Catalyst for Organic Dye Removal

Yolk‐shell Co₃O₄@Fe₃O₄/C Nanocomposites as a Heterogeneous Fenton‐like Catalyst for Organic Dye Removal

A Comprehensive Review on Adsorption, Photocatalytic and Chemical Degradation of Dyes and Nitro-Compounds over Different Kinds of Porous and Composite Materials

Metal-organic Framework-based Materials: Synthesis, Stability and Applications in Food Safety and Preservation

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Activation of peroxymonosulfate by CoFe2O4 loaded on metal-organic framework for the degradation of organic dye

Cited by 93 publications

References 65 publications

Yolk‐shell Co3O4@Fe3O4/C Nanocomposites as a Heterogeneous Fenton‐like Catalyst for Organic Dye Removal

Yolk‐shell Co3O4@Fe3O4/C Nanocomposites as a Heterogeneous Fenton‐like Catalyst for Organic Dye Removal

A Comprehensive Review on Adsorption, Photocatalytic and Chemical Degradation of Dyes and Nitro-Compounds over Different Kinds of Porous and Composite Materials

Metal-organic Framework-based Materials: Synthesis, Stability and Applications in Food Safety and Preservation

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Product

Resources

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Yolk‐shell Co₃O₄@Fe₃O₄/C Nanocomposites as a Heterogeneous Fenton‐like Catalyst for Organic Dye Removal

Yolk‐shell Co₃O₄@Fe₃O₄/C Nanocomposites as a Heterogeneous Fenton‐like Catalyst for Organic Dye Removal