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Article

Wet Peroxide Oxidation of Paracetamol Using Acid Activated and Fe/Co-Pillared Clay Catalysts Prepared from Natural Clays

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Centro de Investigação de Montanha (CIMO), Instituto Politécnico de Bragança, 5300-253 Bragança, Portugal
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Laboratory of Separation and Reaction Engineering—Laboratory of Catalysis and Materials (LSRE-LCM), Faculdade de Engenharia, Universidade do Porto, 4200-465 Porto, Portugal
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Department of Chemistry and Chemical Engineering, M.Kh. Dulati Taraz State University, Tole bi 63, 080012 Taraz, Kazakhstan
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Universidade Tecnológica Federal do Paraná, R. Marcílio Dias, 635 - Jardim Paraiso, Apucarana - PR 86812-460, Brazil
*
Authors to whom correspondence should be addressed.
Catalysts 2019, 9(9), 705; https://doi.org/10.3390/catal9090705
Received: 29 July 2019 / Revised: 14 August 2019 / Accepted: 19 August 2019 / Published: 22 August 2019
(This article belongs to the Special Issue Novel Heterogeneous Catalysts for Advanced Oxidation Processes (AOPs))
Many pharmaceuticals have been recently identified at trace levels worldwide in the aquatic environment. Among them, the highly consumed paracetamol (PCM), an analgesic and antipyretic drug, is largely being accumulated in the aquatic environment due to inefficient removal by conventional sewage treatment plants. This work deals with the treatment of PCM, used as a model pharmaceutical contaminant of emerging concern, by catalytic wet peroxide oxidation using clay-based materials as catalysts. The catalysts were prepared from natural clays, extracted from four different deposits using acid-activated treatment, calcination, and pillarization with Fe and Co. Pillared clays show the highest catalytic activity owing to the presence of metals, allowing to remove completely the PCM after 6 h under the following operating conditions: CPCM = 100 mg L−1, CH2O2 = 472 mg L−1, Ccat = 2.5 g L−1, initial pH = 3.5 and T = 80 °C. The prepared materials presented high stability since leached iron was measured at the end of reaction and found to be lower than 0.1 mg L−1. View Full-Text
Keywords: advanced oxidation process; wastewater treatment; contaminants of emerging concern; pharmaceuticals; environmental catalysis advanced oxidation process; wastewater treatment; contaminants of emerging concern; pharmaceuticals; environmental catalysis
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MDPI and ACS Style

Santos Silva, A.; Seitovna Kalmakhanova, M.; Kabykenovna Massalimova, B.; G. Sgorlon, J.; Jose Luis, D.d.T.; T. Gomes, H. Wet Peroxide Oxidation of Paracetamol Using Acid Activated and Fe/Co-Pillared Clay Catalysts Prepared from Natural Clays. Catalysts 2019, 9, 705. https://doi.org/10.3390/catal9090705

AMA Style

Santos Silva A, Seitovna Kalmakhanova M, Kabykenovna Massalimova B, G. Sgorlon J, Jose Luis DdT, T. Gomes H. Wet Peroxide Oxidation of Paracetamol Using Acid Activated and Fe/Co-Pillared Clay Catalysts Prepared from Natural Clays. Catalysts. 2019; 9(9):705. https://doi.org/10.3390/catal9090705

Chicago/Turabian Style

Santos Silva, Adriano, Marzhan Seitovna Kalmakhanova, Bakytgul Kabykenovna Massalimova, Juliana G. Sgorlon, Diaz de Tuesta Jose Luis, and Helder T. Gomes. 2019. "Wet Peroxide Oxidation of Paracetamol Using Acid Activated and Fe/Co-Pillared Clay Catalysts Prepared from Natural Clays" Catalysts 9, no. 9: 705. https://doi.org/10.3390/catal9090705

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