Photocatalytic degradation of atenolol in aqueous suspension of new recyclable catalysts based on titanium dioxide

Marco Tammaro, Valeria Fiandra, Maria Cristina Mascolo, Antonio Salluzzo, Chiara Riccio, Amedeo Lancia

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10 Citations (Scopus)

Abstract

Photocatalytic degradation of atenolol in aqueous suspensions using specifically synthetized mesoporous based TiO2materials as photocatalysts under UVC (254 nm) irradiation was investigated. A batch reactor and a UV lamp 16 W power were used to test the ATL removal with several initial concentrations of ATL (4.5 - 30 mg/L) and four synthetized TiO2photocatalysts, characterized by different BET surface areas and average pore sizes. Moreover, the effect of solution pH (4.8 - 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 1000 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.
Original languageEnglish
Pages (from-to)3224 - 3234
Number of pages11
JournalJournal of Environmental Chemical Engineering
Volume5
Issue number4
DOIs
Publication statusPublished - 1 Aug 2017

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All Science Journal Classification (ASJC) codes

  • Chemical Engineering (miscellaneous)
  • Waste Management and Disposal
  • Pollution
  • Process Chemistry and Technology

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