Article ID | Journal | Published Year | Pages | File Type |
---|---|---|---|---|
4908679 | Journal of Environmental Chemical Engineering | 2017 | 11 Pages |
Abstract
Photocatalytic degradation of atenolol in aqueous suspensions using specifically synthetized mesoporous based TiO2 materials as photocatalysts under UVC (254Â nm) irradiation was investigated. A batch reactor and a UV lamp 16Â W power were used to test the ATL removal with several initial concentrations of ATL (4.5 â 30Â mg/L) and four synthetized TiO2 photocatalysts, characterized by different BET surface areas and average pore sizes. Moreover, the effect of solution pH (4.8 â 9.0) and of the oxygen presence were investigated. The performances of the synthetized photocatalysts were compared with commercial Degussa P25. The atenolol degradation was studied using different concentration of catalyst (50 and 1000Â mg/L) showing a maximum removal efficiency of 65%. Although the new catalysts showed a lower efficiency when compared to commercial P25, they can be easily recovered from water being in the form of micro-aggregate, and then reused without remarkable changes. The experimental data were fitted using a pseudo first order kinetic model.
Keywords
Brunauer–Emmett–Teller methodPZCPFOATLPPCPsBJHTOClogKOWAOPsEDCsUV–VisAtenololUltravioletUV irradiationUltraviolet-visibleEndocrine disrupting compoundsWater treatmentDissociation constantPharmaceuticals and personal care productsBETOctanol-water partition coefficientWavelengthPhotodegradationPhotocatalystsAdvanced oxidation processesLangmuir-HinshelwoodPseudo-first orderpoint of zero chargeinorganic carbonhigh performance liquid chromatographyHPLCtotal carbonTotal organic carbon
Related Topics
Physical Sciences and Engineering
Chemical Engineering
Chemical Engineering (General)
Authors
Marco Tammaro, Valeria Fiandra, Maria Cristina Mascolo, Antonio Salluzzo, Chiara Riccio, Amedeo Lancia,