Degradation of diclofenac sodium using Fenton-like technology based on nano-calcium peroxide

Jiang, Yingying; Chen, Ziwen; Li, Manman; Xiang, Qiu-Hong; Wang, Xixi; Miao, Hengfeng; Ruan, Wenquan

doi:10.1016/j.scitotenv.2020.144801

Cited by 45 publications

(10 citation statements)

References 55 publications

Supporting

Mentioning

Contrasting

Order By: Relevance

“…•− has also been suggested in a three-dimensional EF system with nickel foam as a particle electrode, which was said to promote reaction 42. 119,120 However, its role in iron reduction was not clearly demonstrated in this work. O 2…”

Section: •−mentioning

confidence: 61%

Critical Review on the Mechanisms of Fe²⁺ Regeneration in the Electro-Fenton Process: Fundamentals and Boosting Strategies

et al. 2023

View full text Add to dashboard Cite

This review presents an exhaustive overview on the mechanisms of Fe3+ cathodic reduction within the context of the electro-Fenton (EF) process. Different strategies developed to improve the reduction rate are discussed, dividing them into two categories that regard the mechanistic feature that is promoted: electron transfer control and mass transport control. Boosting the Fe3+ conversion to Fe2+ via electron transfer control includes: (i) the formation of a series of active sites in both carbon- and metal-based materials and (ii) the use of other emerging strategies such as single-atom catalysis or confinement effects. Concerning the enhancement of Fe2+ regeneration by mass transport control, the main routes involve the application of magnetic fields, pulse electrolysis, interfacial Joule heating effects, and photoirradiation. Finally, challenges are singled out, and future prospects are described. This review aims to clarify the Fe3+/Fe2+ cycling process in the EF process, eventually providing essential ideas for smart design of highly effective systems for wastewater treatment and valorization at an industrial scale.

show abstract

Section: •−mentioning

confidence: 61%

Critical Review on the Mechanisms of Fe²⁺ Regeneration in the Electro-Fenton Process: Fundamentals and Boosting Strategies

et al. 2023

View full text Add to dashboard Cite

show abstract

“…This is in agreement with the formation of two DCF oxidation derivatives through DCF ozonation in aqueous solutions, 56 probably C 14 H 11 Cl 2 NO 3 and C 14 H 11 Cl 2 NO 4 as reported earlier. 57–63,72 The lower ecotoxicity level noticed at low Inter-2b/converted DCF ratios (Fig. 9b) must be due to the early DCF degradation combined with a delayed formation of Intermediate 2b.…”

Section: Resultsmentioning

confidence: 96%

“…This is supposed to generate similar early intermediates (C 14 H 11 Cl 2 NO 3 and C 14 H 11 Cl 2 NO 4 ) to those in other oxidative processes. 57–63 Simultaneous formation of (2,6-dichlorophenyl)indolin-2-one (C 14 H 9 Cl 2 NO) through the carboxyl reaction with the protonated amino group and water loss often takes place before C–N cleavage 62,64–66 giving rise to a wide variety of intermediates. Consecutive processes are expected to lead to the formation of short chain derivatives, carbon dioxide and others.…”

Section: Resultsmentioning

confidence: 99%

Insight into natural medium remediation through ecotoxicity correlation with clay catalyst selectivity in organic molecule ozonation

et al. 2022

View full text Add to dashboard Cite

show abstract

“…The study emphasized the presence of OH• and SO4 -• were the main factors that played a role in main degradation reaction pathways of DCF whereas the O2 -• had a moderate effect only [24]. Furthermore, a study showed that OH• radicals were the main oxidizing agents DCF a fenton like system as well [25].…”

Section: Effects Of Air Flow Ratementioning

confidence: 94%

“…The effects of oxidation agents such as H2O2, ozone, O2/Ar on the photocatalytic degradation process were investigated in some studies [20,21,23]. Only a few studies considered the effect of air flow rate on DCF degradation via sono-activated persulfate oxidation [24] and in a fenton like system [25].…”

Section: Introductionmentioning

confidence: 99%

Photocatalytic degradation of diclofenac (an emerging contaminant): Effects of photocatalyst amount and air flow rate

DURANOĞLU

2024

Sigma J Eng Nat Sci - Sigma Müh Fen Bil Derg

View full text Add to dashboard Cite

Photocatalytic degradation of diclofenac, an anti-inflammatory drug, was investigated with TiO2 photocatalyst under UV light (365nm). The effects of photocatalyst concentrations (0.5 g/L, 1 g/L and 2 g/L) and air flow rates (3L/h, 6 L/h, 12 L/h and 18 L/h) on photodegradation kinetic were evaluated for 15 mg/L diclofenac solution during 4 hours. The results showed that the amount of TiO2 and air flow rates have direct influence on the photocatalytic degradation of diclofenac. Excessive catalyst amount and high air flow rates inhibited the degradation of diclofenac. The highest diclofenac degradation efficiency of 78.4 % were achieved by 6 L/h air flow rate with a photocatalyst concentration of 0.5 g/L. The photocatalytic degradation of diclofenac followed the Langmuir-Hinshelwood kinetic model except the experiments carried without air flow and very low air flow rates.

show abstract

Degradation of diclofenac sodium using Fenton-like technology based on nano-calcium peroxide

Cited by 45 publications

References 55 publications

Critical Review on the Mechanisms of Fe²⁺ Regeneration in the Electro-Fenton Process: Fundamentals and Boosting Strategies

Critical Review on the Mechanisms of Fe²⁺ Regeneration in the Electro-Fenton Process: Fundamentals and Boosting Strategies

Insight into natural medium remediation through ecotoxicity correlation with clay catalyst selectivity in organic molecule ozonation

Photocatalytic degradation of diclofenac (an emerging contaminant): Effects of photocatalyst amount and air flow rate

Contact Info

Product

Resources

About

Degradation of diclofenac sodium using Fenton-like technology based on nano-calcium peroxide

Cited by 45 publications

References 55 publications

Critical Review on the Mechanisms of Fe2+ Regeneration in the Electro-Fenton Process: Fundamentals and Boosting Strategies

Critical Review on the Mechanisms of Fe2+ Regeneration in the Electro-Fenton Process: Fundamentals and Boosting Strategies

Insight into natural medium remediation through ecotoxicity correlation with clay catalyst selectivity in organic molecule ozonation

Photocatalytic degradation of diclofenac (an emerging contaminant): Effects of photocatalyst amount and air flow rate

Contact Info

Product

Resources

About

Critical Review on the Mechanisms of Fe²⁺ Regeneration in the Electro-Fenton Process: Fundamentals and Boosting Strategies

Critical Review on the Mechanisms of Fe²⁺ Regeneration in the Electro-Fenton Process: Fundamentals and Boosting Strategies