Solar/TiO2 photocatalytic decomposition of β-blockers atenolol and propranolol in water and wastewater

The photocatalytic conversion of two β-blockers, namely atenolol and propranolol in aqueous TiO2 suspensions was investigated. Irradiation was provided by a solar simulator equipped with 1 kW Xe-OP lamp, while emphasis was given on the effect of catalyst type and loading (50–3000 mg/L), substrate concentration (5–30 mg/L), initial solution pH (3–10), and the addition of H2O2 (0.07–1.4 mM) and oxygen on degradation in two matrices (i.e. pure...