Nanocrystalline ferrihydrite activated peroxymonosulfate for butyl-4-hydroxybenzoate oxidation: Performance and mechanism

Nanocrystalline ferrihydrite activated peroxymonosulfate for butyl-4-hydroxybenzoate oxidation: Performance and mechanism

Heterogeneous catalysts activated peroxymonosulfate (PMS) for degradation of refractory organic contaminants has been recognized as a promising removal technology for the environmental remediation. In this study, nanocrystalline ferrihydrite (NFH) was prepared to activate PMS for the degradation of...

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Veröffentlicht in:Chemosphere (Oxford) 2020-03, Vol.242, p.125140, Article 125140
Hauptverfasser: Peng, Huihui, Yang, Jia-Cheng E., Fu, Ming-Lai, Yuan, Baoling
Format: Artikel
Sprache:eng
Schlagworte:
Butyl-4-hydroxybenzoate
Catalysis
Degradation
Ferric Compounds - chemistry
Ferrihydrite
Kinetics
Models, Chemical
Nanocrystalline
Oxidation-Reduction
Parabens - chemistry
Peroxides - chemistry
Peroxymonosulfate
Reactive Oxygen Species - chemistry
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Zusammenfassung:Heterogeneous catalysts activated peroxymonosulfate (PMS) for degradation of refractory organic contaminants has been recognized as a promising removal technology for the environmental remediation. In this study, nanocrystalline ferrihydrite (NFH) was prepared to activate PMS for the degradation of butyl-4-hydroxybenzoate (BHB). XPS analysis indicates that calcination process played a key role in regulating the surface oxygen species of NFH, thus control its activation ability toward PMS. NFH exhibits excellent stability (the released concentration of Fe ions 
ISSN:0045-6535
1879-1298
DOI:10.1016/j.chemosphere.2019.125140