Heterogeneous catalytic ozonation and peroxone-mediated removal of Acetaminophen using natural and modified hematite-rich soil, as efficient and environmentally friendly catalysts

Kohantorabi, Mona ¹Moussavi, Gholamreza ¹Oulego, Paula ²Giannakis, Stefanos³

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作者信息

1. Tarbiat Modares Univ, Fac Med Sci, Dept Environm Hlth Engn, Tehran, Iran
2. Univ Oviedo, Dept Chem & Environm Engn, C Julian Claveria S-N, E-33071 Oviedo, Spain
3. Univ Politecn Madrid, ETS Ingenieros Caminos Canales & Puertos, Dept Ingn Civil Hidraul Energia & Medio Ambiente, Unidad Docente Ingn Sanitaria, C Prof Aranguren S-N, ES-28040 Madrid, Spain
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Abstract

Hormuz Red Soil (HRS), as a naturally hematite-containing mineral was used to enhance the catalytic ozonation process (COP) of Acetaminophen (ACT) elimination. The surface properties and particle size of HRS mainly composed of alpha-Fe2O3 were modified via calcination (C-HRS) demonstrating notable catalytic activity. The catalytic activity of C-HRS was evaluated for the ozonation of ACT under various conditions. Complete degradation of 50 mg L-1 ACT was obtained within 10 min at natural conditions with 1.0 g L-1 of C-HRS which was > 10 times faster than single ozonation process (SOP). The C-HRS accelerated the decomposition of ozone to hydroxyl radical on the catalyst's surface. Moreover, the C-HRS efficiently catalyzed the peroxone reaction for the degradation and mineralization of ACT. The C-HRS exhibited high stability and reusability in consecutive catalytic cycles. This work offers a new, effective, and low-cost catalyst for accelerating of ozone decomposition that can be used in oxidation of pollutants.

Key words

Catalytic ozonation/Peroxone/Natural iron/alpha-Fe2O3 structure/Acetaminophen oxidation

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出版年

2022

Applied Catalysis

ISSN：0926-3373

被引量18

参考文献量81

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