Ordered Mesoporous Alumina-supported Metal Oxides as Fenton-like Catalysts for Pharmaceuticals Removal

INCHAURRONDO, N.; NIETO-SANDOVAL, JULIA; MUNOZ, MACARENA; DE PEDRO, ZAHARA M.; CASAS, JOSE A.; C. DI LUCA

Cuzco

Conferencia; 5th Iberoamerican Conference on Advanced Oxidation Technologies; 2022

The leaching of supported metallic species has become a hotspot in the development of heterogeneous Fenton-like catalysts. Herein, highly stable catalytic materials were synthetized by trapping Cu and Fe species inside the network of ordered mesoporous alumina (MA) by the Evaporation-Induced Self-Assembly (EISA) methodology. The potential synergy of combining Fe and Cu species was explored at different molar ratios. The synthesis strategy produced hierarchical materials whose surface and structural properties resulted superior than those of conventional Fenton-like catalysts, exhibiting BET surface areas up to 324 m2/g, a pore volume up to 0.93 m3/g and aligned cylindrical pores of c.a. 9 nm. The performance of the materials was evaluated in the Catalytic Wet Peroxide Oxidation (CWPO) of sulfamethoxazole (SMX) carried out in a batch stirred tank reactor at: T = 40 ºC, [catalyst] = 1 g/L, t = 180 min and [SMX] = 20 mg/L.