Photodegradation kinetics and halogens release of the emerging concern pollutants dexamethasone and S-metolachlor on TiO/rGO composites.

This work studies the photocatalytic degradation of solutions containing 0.11 mM of a glucocorticoid (dexamethasone, DEX) and 0.11 mM of an herbicide (S-metolachlor, MTLC), organohalogenated compounds containing fluorine and chlorine atoms in their molecules, respectively.

Performance of TiO-Based Tubular Membranes in the Photocatalytic Degradation of Organic Compounds.

This work presents the photocatalytic degradation of organic pollutants in water with TiO and TiO/Ag membranes prepared by immobilising photocatalysts on ceramic porous tubular supports. The permeation capacity of TiO and TiO/Ag membranes was checked before the photocatalytic application, showing high water fluxes (≈758 and 690 L m h bar, respectively) and <2% rejection against the model pollutants sodium dodecylbenzene sulfonate (DBS) and dichloroacetic acid (DCA). When the membranes were submerged in the aqueous solutions and irradiated with UV-A LEDs, the photocatalytic performance factors for the degradation of DCA were similar to those obtained with suspended TiO particles (1.

Shedding light on the performance of magnetically recoverable TiO/FeO/rGO-5 photocatalyst. Degradation of S-metolachlor as case study.

Recalcitrant contaminants are not usually removed in conventional wastewater treatment plants. Therefore, they are transferred to the water resources that receive treated wastewaters and their presence can cause health and environmental issues. Herbicides are among these compounds.