Advanced oxidation processes have gained an essential attraction on antibiotics degradation that are known with their low degradable properties in biological treatment systems. This study attempts to test the photocatalytic antibiotic degradation performance of biosynthesized Ag-TiO’ colloid nano materials in comparison with the chemically synthesized alternative. Photocatalytic degaradation of 12 mg.L-1 of Sulfamethoxazole in suspended photocatalytic oxidation process at varying doses of Ag-TiO2 nano-materials were studied. 0.90 mw/cm2 of UV energy was applied at photo simulation reactor equipped with UV-A lamps. The SMX antibiotic solution includin the initial photocatalyst dose was fed from the continuously stirred feeding tank into the advective transport dominated Parallel plate reactor configuration.
The PEG 600 and Cydonia Oblanda seed extract were used as chemical and bio-chemical agents respectively for AgNO3 reduction. The applied methodology was built on the proper modification of PEG 600 based deposition precipitaiton in which the seperated Ag-TiO2 colloid was dried at 80 0C for 24 hours. In accordance with the material characterization findings, size of both Ag-TiO2 colloids were in the nanoscale.
The process efficiency was evaluated in terms of degradation and mineralization. Different rate of mineralization and degradation was observed for the case of each photocatalyst scenario. Effects of simultaneous ultrasound irradiation on photocatalytic degradation process of Sulfamethoxazole was tested.
Anahtar Kelimeler: Antibiotics, Green Synthesis, Ag-TiO2 nanomaterial, Photocatalysis, Sulfamethoxazole