Wet Peroxide Oxidation of Paracetamol Using Acid Activated and Fe/Co-Pillared Clay Catalysts Prepared from Natural Clays
Year: 2019
Type: article
Abstract: 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.
Source: Catalysts
DOI: 10.3390/catal9090705
Language: English
Subfield: Water Science and Technology
Field: Environmental Science
Domain: Physical Sciences
Open Access status: gold
Estimated APC paid: $1,621
Awards: Laboratório de Processos de Separação e Reacção, G1516346500, G2189120085, G2375406851, G258608477, G2673245850, G2734793695, G2961852607, G3136165373, AIProcMat@N2020 - Advanced Industrial Processes and Materials for a Sustainable Northern Region of Portugal 2020, G3987876292, G4316116677, G5273726836, G5360705079, G547185811, G5619450010, G7584003722, G8172234640, G8183701540, Centro de Investigação de Montanha, G96847669
OpenAlex ID: W2969934169