Photocatalytic Degradation of Bisphenol A from Aqueous Solutions using TiO2 Nanoparticles and UV Illumination

Background and purpose: bisphenol a (bpa) is used to make certain plastics and epoxy resins.it is a non-biodegradable compound, and poses health risks to both humans and animals. thepurpose of this study was to evaluate decomposition efficiency of bpa from aqueous solutionsusing uv irradiation.materials and methods: in this study, the photodegradation of bpa in water were carried out in areactor equipped 6 w uv lamp. in order to obtain the optimum operational conditions,parameters such as bpa concentration (1-50 mg/l), tio2 dosage (0.025-2 g/l), and ph (3-11)were evaluated. bpa concentration was measured by high-performance liquid chromatography.results: the highest degradation was 90% and achieved in 60 min. bpa degradation efficiencycan be effectively improved by increasing ph, decreasing the initial concentration and increasingtio2 dosage. the optimal dose of tio2 was measured at 0.5 g/l. the degradation decreases withincreasing tio2 dosage.conclusion: photocatalytic degradation by using tio2 and low power uv lamp is applicable.