Unraveling new reactivity pathways of cobalt(II) ammonium phosphate toward activation of peroxymonosulfates and subsequent degradation of antibiotic pollutants in water

Result code in IS VaVaI
<a href="https://www.isvavai.cz/riv?ss=detail&h=RIV%2F00216208%3A11310%2F25%3A10491030" target="_blank" >RIV/00216208:11310/25:10491030 - isvavai.cz</a>
Result on the web
<a href="https://verso.is.cuni.cz/pub/verso.fpl?fname=obd_publikace_handle&handle=CEmMtea9I" target="_blank" >https://verso.is.cuni.cz/pub/verso.fpl?fname=obd_publikace_handle&handle=CEmMtea9I</a>
DOI - Digital Object Identifier
<a href="http://dx.doi.org/10.1016/j.ces.2024.120989" target="_blank" >10.1016/j.ces.2024.120989</a>

Result language
angličtina
Original language name
Unraveling new reactivity pathways of cobalt(II) ammonium phosphate toward activation of peroxymonosulfates and subsequent degradation of antibiotic pollutants in water
Original language description
This study is aimed at unraveling the catalytic activity of cobalt(II) ammonium phosphate (NH4CoPO4) in activation of peroxymonosulfate (PMS) and degradation of various antibiotics. It was found that NH4CoPO4 enabled swift and efficient removal of ciprofloxacin (CIP) at a high initial concentration (30 mg/L) using very low catalyst loading (10 mg/L) in just several minutes of the reaction. The CIP degradation rate in the presence of NH4CoPO4 was approximately 3.5 times higher than that observed for the well-known and highly active Co3O4 catalyst (k = 0.121 vs. 0.031 min(-1), respectively). Catalytic tests with the use of reactive oxygen species scavengers revealed that the primary oxidizing agent responsible for degradation of CIP were cobalt(IV)-oxo species. It was also established that NH4CoPO4 could efficiently degrade CIP even in environmental water samples (e.g., river water). This study contributes to a better understanding of the reactivity of NH4CoPO4 in the degradation of antibiotic pollutants.
Czech name
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Czech description
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Type
J<sub>imp</sub> - Article in a specialist periodical, which is included in the Web of Science database
CEP classification
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OECD FORD branch
10403 - Physical chemistry

Project
<a href="/en/project/EF15_003%2F0000417" target="_blank" >EF15_003/0000417: Center for Advanced Materials: Design, Synthesis, and Applications</a><br>
Continuities
P - Projekt vyzkumu a vyvoje financovany z verejnych zdroju (s odkazem do CEP)<br>I - Institucionalni podpora na dlouhodoby koncepcni rozvoj vyzkumne organizace

Publication year
2025
Confidentiality
S - Úplné a pravdivé údaje o projektu nepodléhají ochraně podle zvláštních právních předpisů

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