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Photocatalytic degradation of Sulfacetamide antibiotic in aqueous solutions using immobilized TiO2 nanoparticles
Paper ID : 2282-UFGNSM13-FULL (R1)
Authors:
Abstract:
Antibiotics are emerging contaminants in the aquatic environment because of their adverse effects on aquatic life and humans. Among the different advanced oxidation processes, TiO2 photocatalysis has emerged as a promising wastewater treatment technology. The main advantages of the process are lack of mass transfer limitations and operation at conditions and the catalyst is inexpensive, commercially available, non -toxic and photochemically stable. In the present work the optimization of heat attachment method for increasing photoactivity of immobilized TiO2 on glass plate was investigated. In this study the photocatalytic degradation of Sulfacetamide antibiotic, under UV light irradiation using TiO2 nanoparticles immobilized on glass plates by a heat attachment method in a rectangular photoreactor was studied. The effect of various parameters (such as antibiotic concentration and UV light intensity) on the photocatalytic degradation efficiency has been investigated. SEM images of the immobilized TiO2 nanoparticles showed the good coating on the plates. Results show that the removal rate decreases with increasing initial concentration of Sulfacetamide but increases with increasing UV-light intensity. TiO2 nanoparticles immobilized on glass plate showed to be the most active for the degradation of Sulfacetamide.
Keywords:
TiO2 nanoparticles, Photocatalytic degradation, Immobilized photocatalyst, Sulfacetamide
Status : Paper Accepted (Poster Presentation)