Modeling of Fe(II)-activated persulfate oxidation using atrazine as a target contaminant

Bu, Lingjun; Shi, Zhou; Zhou, Shiqing

doi:10.1016/j.seppur.2016.05.037

Cited by 77 publications

(23 citation statements)

References 31 publications

Supporting

Mentioning

Contrasting

Order By: Relevance

“…When the initial 4-CP concentration increases, the amount of radicals available per mole of 4-CP decreases and the degradation rate of 4-CP decreases. This has also been confirmed in similar research by Bu et al, and Fang et al [24,25].…”

Section: Obtaining the Pls Modelsupporting

confidence: 83%

Degradation of 4-Chlorophenol by Microwave-Enhanced Advanced Oxidation Processes: Kinetics and Influential Process Parameters

Milh

Eyck

Dewil

2018

Water

View full text Add to dashboard Cite

Abstract:In this study, the degradation of 4-chlorophenol (4-CP) is investigated by using a combination of microwave (MW) irradiation and hydrogen peroxide as oxidant (the MW-H 2 O 2 -process). The influence of the critical parameters on the efficiency of the process is examined by applying Partial Least Square Regression (PLS) on a Design of Experiments (DOE). Also, a kinetic evaluation of the process is carried out. Results showed that the MW-H 2 O 2 -process is effective in the degradation of 4-CP. The most influential parameter of the MW-H 2 O 2 -process is the reaction temperature. Besides this parameter, the reaction time, initial 4-CP concentration, and initial hydrogen peroxide concentration have a (minor) influence on the 4-CP degradation. A maximum degradation efficiency within the levels of the DOE (remaining percentage of 4-CP of 34%) was achieved with an initial 4-CP concentration of 1000 mg/L, an initial H 2 O 2 concentration of 11 g/L, reaction temperature of 180 • C, and reaction time of 20 min. The process follows pseudo first order reaction kinetics.

show abstract

Section: Obtaining the Pls Modelsupporting

confidence: 83%

Degradation of 4-Chlorophenol by Microwave-Enhanced Advanced Oxidation Processes: Kinetics and Influential Process Parameters

Milh

Eyck

Dewil

2018

Water

View full text Add to dashboard Cite

show abstract

“…Then, SO 4 c À reacts with Fe 2+ at diffusion control rate and an excess amount of Fe 2+ in solution can undergo homogenous reaction and thereby further facilitate the reaction. 40 The pseudo-rst-order plots for BPA degradation as a function of PS concentration (Fig. 3b) were observed.…”

Section: Effects Of Ph Ps Concentration and Catalyst Load On Bpa Degmentioning

confidence: 89%

Efficient activation of persulfate by Fe₃O₄@β-cyclodextrin nanocomposite for removal of bisphenol A

et al. 2018

View full text Add to dashboard Cite

show abstract

“…However, the generation of SO 4 ·− from peroxydisulfate and peroxymonosulfate under normal conditions is generally slow. Recently, activating peroxydisulfate or peroxymonosulfate with UV irradiation (Huang et al 2017), transition metal ions (like Co 2+ , Cu 2+ or Fe 2+ ) (Bu et al 2016;Zou et al 2014) and metal oxides Gong et al 2015) has been tested to accelerate the reaction. It was found that the metal catalysts employed to activate peroxymonosulfate have exhibited reliable performance for the treatment of organic pollutants.…”

Section: Introductionmentioning

confidence: 99%

CaCu3Ti4O12, an efficient catalyst for ibuprofen removal by activation of peroxymonosulfate under visible-light irradiation

et al. 2018

View full text Add to dashboard Cite

et al.. CaCu3Ti4O12, an efficient catalyst for ibuprofen removal by activation of peroxymonosulfate under visible-light irradiation. AbstractContamination of waters by pharmaceuticals is a major health issue. Therefore, there is a need for efficient techniques to remove pharmaceutical pollutants. Here, a photo-assisted fenton-like method based on sulfate radicals was tested using CaCu 3 Ti 4 O 12 with different morphologies as catalyst. Sintering of CaCu 3 Ti 4 O 12 at 775 °C for 6 h produced cubic structures with sizes from 2 to 5 μm, whereas sintering for 14 h produced microfibers, according to scanning electron microscopy. The highest electron paramagnetic resonance signal was observed for 6-h sintering. We evaluated the catalytic efficiency of CaCu 3 Ti 4 O 12 for ibuprofen degradation with peroxymonosulfate under visible light. Results show that CaCu 3 Ti 4 O 12 and 0.5 mM peroxymonosulfate under visible-light irradiation induced 91.8% removal of ibuprofen in 60 min. The Cu + vacancy on the surface of CaCu 3 Ti 4 O 12 is essential to activate the sulfate radicals by forming a Cu + -Cu 2+ redox couple, which led to the rapid and efficient removal of ibuprofen.

show abstract

Modeling of Fe(II)-activated persulfate oxidation using atrazine as a target contaminant

Cited by 77 publications

References 31 publications

Degradation of 4-Chlorophenol by Microwave-Enhanced Advanced Oxidation Processes: Kinetics and Influential Process Parameters

Degradation of 4-Chlorophenol by Microwave-Enhanced Advanced Oxidation Processes: Kinetics and Influential Process Parameters

Efficient activation of persulfate by Fe₃O₄@β-cyclodextrin nanocomposite for removal of bisphenol A

CaCu3Ti4O12, an efficient catalyst for ibuprofen removal by activation of peroxymonosulfate under visible-light irradiation

Contact Info

Product

Resources

About

Modeling of Fe(II)-activated persulfate oxidation using atrazine as a target contaminant

Cited by 77 publications

References 31 publications

Degradation of 4-Chlorophenol by Microwave-Enhanced Advanced Oxidation Processes: Kinetics and Influential Process Parameters

Degradation of 4-Chlorophenol by Microwave-Enhanced Advanced Oxidation Processes: Kinetics and Influential Process Parameters

Efficient activation of persulfate by Fe3O4@β-cyclodextrin nanocomposite for removal of bisphenol A

CaCu3Ti4O12, an efficient catalyst for ibuprofen removal by activation of peroxymonosulfate under visible-light irradiation

Contact Info

Product

Resources

About

Efficient activation of persulfate by Fe₃O₄@β-cyclodextrin nanocomposite for removal of bisphenol A