Catalytic Activation of Hydrogen Peroxide Using Highly Porous Hydrothermally Modified Manganese Catalysts for Removal of Azithromycin Antibiotic from Aqueous Solution

Hydrogen peroxide catalytic activation holds great promise in the treatment of persistent pollutants. In this study, novel Mn-Acacair/Al, Mn-Acacarg/Al and Mn-BTCarg/Al catalysts, supported on Al2O3, were applied for rapid hydrogen azithromycin antibiotic removal. The catalysts prepared by calcination-hydrothermal method under air or argon atmosphere. characterization confirmed that modification manganese with acetylacetonate benzene-1,3,5-tricarboxylic acid (H3BTC) O-donor ligands highly improves catalyst porosity, amorphousity, abundance coordinately unsaturated sites, which facilitate generation reactive oxygen species. removal reached 98.4% 99.3% after 40 min using incredible stability reusability. Only a 5.2% decrease activity less than 2% releasing solutions detected five regeneration cycles optimum operating conditions. intermediates identified LC-MS/MS analysis, pathways proposed. hydroxylation decarboxylation reactions play key role degradation reaction.