Efficient degradation of 2,4-dichlorophenol in aqueous solution by peroxymonosulfate activated with magnetic spinel FeCo2O4 nanoparticles

Zhou, Rui; Zhao, Junfang; Shen, Ningfei; Ma, Tran; Yu, Su; Ren, Hejun

doi:10.1016/j.chemosphere.2018.01.079

Cited by 114 publications

(33 citation statements)

References 48 publications

Supporting

Mentioning

Contrasting

Order By: Relevance

“…When PMS dosage increased from 0.5 mM to 2 mM, the removal percentage of Orange II increased from 57.6 ± 2.8% to 98.5 ± 1.0%, and it remained this level when the PMS dosage further increased to 4 mM possibly because of SO 4 scavenge effect at high PMS dosage (Jaafarzadeh et al, 2017;Shao et al, 2017). Similar result was also reported by Zhou et al (2018). They found that the degradation of 2,4-dichlorophenol in FeCo 2 O 4 /PMS system was not strictly dependent on PMS dosage.…”

Section: Factors Influencing Orange II Degradation In the Mfc-mnfe 2 supporting

confidence: 69%

A novel combination of bioelectrochemical system with peroxymonosulfate oxidation for enhanced azo dye degradation and MnFe2O4 catalyst regeneration

2019

View full text Add to dashboard Cite

show abstract

Section: Factors Influencing Orange II Degradation In the Mfc-mnfe 2 supporting

confidence: 69%

A novel combination of bioelectrochemical system with peroxymonosulfate oxidation for enhanced azo dye degradation and MnFe2O4 catalyst regeneration

2019

View full text Add to dashboard Cite

show abstract

“…Third, the pH pzc (point of zero charge) of Fe 3 O 4 is 7.1, 41 and the surface potentials of FeCo 2 O 4 at pH 5.0, 7.0, and 9.0 were −14.9, −20.6, and −24.3 mV, respectively. 27 This finding indicates . The plot of MNZ versus reaction time clearly showed the incremental degradation of MNZ with increasing PMS concentrations.…”

Section: Factors Influencing Mnz Degradationmentioning

confidence: 75%

“…26 Recently, cobalt-based bimetallic oxides with a spinel structure, such as FeCo 2 O 4 , attracted great interest in heterogeneous catalysis due to their low metal ion leaching and the interaction between Fe and Co. For example, Zhou et al reported the degradation of 2,4-dichlorophenol in aqueous solution by PMS activated with FeCo 2 O 4 nanoparticles. 27 Zhang et al reported the triple-shell FeCo 2 O 4 /CCFs hybrid that exhibited remarkable dualfunctional catalytic activities on the reduction of 4-nitrophenol and the oxidation of tetracycline and malachite green under visible light irradiation. 28 Yan et al reported the FeCo 2 O 4 /hollow graphene sphere hybrid with enhanced electrocatalytic activities for oxygen reduction and oxygen evolution reaction.…”

Section: Introductionmentioning

confidence: 99%

“…Recently, cobalt‐based bimetallic oxides with a spinel structure, such as FeCo 2 O 4 , attracted great interest in heterogeneous catalysis due to their low metal ion leaching and the interaction between Fe and Co. For example, Zhou et al . reported the degradation of 2,4‐dichlorophenol in aqueous solution by PMS activated with FeCo 2 O 4 nanoparticles 27 . Zhang et al .…”

Section: Introductionmentioning

confidence: 99%

See 1 more Smart Citation

Magnetic mesoporous FeCo₂O₄–Fe₃O₄ microrods as novel peroxymonosulfate activators for effective metronidazole degradation

Ren

Han

et al. 2020

J of Chemical Tech & Biotech

Self Cite

View full text Add to dashboard Cite

BACKGROUND: Metronidazole (MNZ) is a highly typical representative antibiotic widely occurring in wastewaters. Its release poses potential threats to the environment and human health. Advanced oxidation processes based on heterogeneous catalysis are promising technologies for organic matter removal. In this study, a new type of magnetic mesoporous FeCo 2 O 4-Fe 3 O 4 microrods was prepared and evaluated as catalyst to activate peroxymonosulfate (PMS) for metronidazole (MNZ) degradation. RESULTS: The effects of catalyst dosage, PMS concentration, and pH on MNZ degradation were investigated. A 96.8% removal of MNZ (100 mg L −1) was attained in the FeCo 2 O 4-Fe 3 O 4 /PMS under the optimum conditions of 4 mM PMS, 0.4 g L −1 FeCo 2 O 4-Fe 3 O 4 loading, pH 7 and 60 min reaction time. The hydroxyl radicals (•OH) and sulfate radicals (SO 4 •−) were identified as the primary reactive species attributed to MNZ removal. The plausible mechanism of the catalytic degradation was proposed and assumed to be related to the Co/Fe species that exerted the synergistic effect during reactions. FeCo 2 O 4-Fe 3 O 4 showed excellent reusability and stability, which was testified by the successive degradation experiments. More importantly, FeCo 2 O 4-Fe 3 O 4 exhibited general applicability in eliminating various antibiotics, including ciprofloxacin, 2,4-dichlorophenol, ofloxacin, and tetracycline. The efficiencies of which were 78.8%, 77.1%, 81.3%, and 60.7%, respectively, under identical reaction conditions as MNZ. CONCLUSION: This study proved that mesoporous FeCo 2 O 4-Fe 3 O 4 microrods are efficient PMS activators and provided a novel strategy for developing FeCo 2 O 4-based catalysts for the removal of organic pollutants from water.

show abstract

“…2 Se 4 ), carrollite (A 1+ B 3:5+ 2 S 4 ), and linnaeite (A 2+ B 3+ 2 S 4 ) [23]. Most especially, spinels offer an efficient path [24], high catalytic activity [25], improved stability [26], useful catalyst [27][28][29][30], and great recyclability [31]. The chemical structure of binary spinel (AB 2 O 4 ) can be replaced by divalent (A = Zn 2+ ) and trivalent (B = Fe 3+ ) metal ions, resulting in photocatalytically active microstructure of zinc ferrite (ZnFe 2 O 4 ) [32].…”

Section: Introductionmentioning

confidence: 99%

An improved method for high photocatalytic performance of ZnAl2O4 spinel derived from layered double hydroxide precursor

Putra

2020

SN Appl. Sci.

View full text Add to dashboard Cite

A spinel structure of zinc aluminate (ZnAl 2 O 4) particles provides a prospective material for photocatalytic applications. In this work, zinc aluminate spinel was prepared by an anion-exchange method derived from layered double hydroxides (LDHs) followed by thermal treatment. The mechanism, photoactivity, and effects of both anion substitute and temperature have been investigated. The chemical composition, morphologies, phase structures, porous structures and photocatalytic properties of samples were analyzed using thermogravimetric analysis, scanning electron microscopy, energy-dispersive X-ray spectroscopy, powder X-ray diffraction, gas sorption analysis, and ultraviolet-visible spectroscopy in detail. The results of mesoporous α-ZnAl 2 O 4 indicate that average crystallite size, total pore volume, and BET surface area obtain 9.3 nm, 0.337 cm 3 /g, and 206.13 m 2 /g, respectively. Moreover, zinc aluminate spinel shows well phase after heating at 700 °C and LDHs structures were completely collapsed. The photocatalytic performances of α-ZnAl 2 O 4 have been applied in p-nitrophenol reduction under visible light irradiation and required time at least 9 min. Finally, the new improved method constructs an excellent material for pretreatment of liquid pollutants containing high-level concentration at rapid treatment time.

show abstract

Efficient degradation of 2,4-dichlorophenol in aqueous solution by peroxymonosulfate activated with magnetic spinel FeCo2O4 nanoparticles

Cited by 114 publications

References 48 publications

A novel combination of bioelectrochemical system with peroxymonosulfate oxidation for enhanced azo dye degradation and MnFe2O4 catalyst regeneration

A novel combination of bioelectrochemical system with peroxymonosulfate oxidation for enhanced azo dye degradation and MnFe2O4 catalyst regeneration

Magnetic mesoporous FeCo₂O₄–Fe₃O₄ microrods as novel peroxymonosulfate activators for effective metronidazole degradation

An improved method for high photocatalytic performance of ZnAl2O4 spinel derived from layered double hydroxide precursor

Contact Info

Product

Resources

About

Efficient degradation of 2,4-dichlorophenol in aqueous solution by peroxymonosulfate activated with magnetic spinel FeCo2O4 nanoparticles

Cited by 114 publications

References 48 publications

A novel combination of bioelectrochemical system with peroxymonosulfate oxidation for enhanced azo dye degradation and MnFe2O4 catalyst regeneration

A novel combination of bioelectrochemical system with peroxymonosulfate oxidation for enhanced azo dye degradation and MnFe2O4 catalyst regeneration

Magnetic mesoporous FeCo2O4–Fe3O4 microrods as novel peroxymonosulfate activators for effective metronidazole degradation

An improved method for high photocatalytic performance of ZnAl2O4 spinel derived from layered double hydroxide precursor

Contact Info

Product

Resources

About

Magnetic mesoporous FeCo₂O₄–Fe₃O₄ microrods as novel peroxymonosulfate activators for effective metronidazole degradation