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

Kód výsledku v 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>

Výsledek na webu

<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>

Jazyk výsledku

angličtina

Název v původním jazyce

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

Popis výsledku v původním jazyce

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.

Název v anglickém jazyce

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

Popis výsledku anglicky

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.

Druh

J_imp - Článek v periodiku v databázi Web of Science

CEP obor

—

OECD FORD obor

10403 - Physical chemistry

Projekt

<a href="/cs/project/EF15_003%2F0000417" target="_blank" >EF15_003/0000417: Centrum pro cílenou syntézu a aplikace perspektivních materiálů</a><br>

Návaznosti

P - Projekt vyzkumu a vyvoje financovany z verejnych zdroju (s odkazem do CEP)<br>I - Institucionalni podpora na dlouhodoby koncepcni rozvoj vyzkumne organizace

Rok uplatnění

2025

Kód důvěrnosti údajů

S - Úplné a pravdivé údaje o projektu nepodléhají ochraně podle zvláštních právních předpisů

Název periodika

Chemical engineering science

ISSN

0009-2509

e-ISSN

1873-4405

Svazek periodika

304

Číslo periodika v rámci svazku

February

Stát vydavatele periodika

GB - Spojené království Velké Británie a Severního Irska

Počet stran výsledku

12

Strana od-do

120989

Kód UT WoS článku

001397813300001

EID výsledku v databázi Scopus

2-s2.0-85210760817