EFEITO DA ADIÇÃO DE PERSULFATO OU H2O2 SOBRE A DEGRADAÇÃO DE FENOL POR TiO2 DOPADO COM Ce

MARTIN, MARCELA V.; IPHADRA, ADRIANA; VILLABRILLE, PAULA I.; ROSSO, JANINA A.

Belo Horizonte

Encuentro; VIII Encontro sobre Aplicações Ambientais de Processos Oxidativos Avançados II Congresso Iberoamericano de Processos Oxidativos Avançados; 2015

Escola de Engenharia da UFMG

Degradation of phenol was used as a model reaction to investigate the photocatalytic properties of cerium-doped (0.1% atomic nominal) TiO2 catalyst, in the absence and presence of oxidants: persulphate (PS) or hydrogen peroxide (H2O2). Parallel experiments have been performed using either artificial ultraviolet and visible light or sunlight during spring-summer seasons in La Plata city (34.90°S, 57.92°W, 15masl) in a batch reactor. The best result was found with doped material and 7.0mM of PS: total mineralization (250M phenol) after 5 hours of solar exposition. Different intermediates were identified for the studied treatments.