Heterogeneous photocatalytic degradation of the pharmaceutical agent salbutamol in aqueous titanium dioxide suspensions

Sakkas, Vasilios A.; Calza, Paola; Medana, Claudio; Villioti, A.; Baiocchi, Claudio; Pelizzetti, Ezio; Albanis, Triantafyllos A.

doi:10.1016/j.apcatb.2007.07.017

Cited by 94 publications

(57 citation statements)

References 29 publications

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“…TiO 2 heterogeneous photocatalysis with highly reactive • OH has been proved to be a promising advanced oxidation technology to eliminate refractory organics in water [18,19], and the photocatalytic degradation of some model pharmaceuticals have been well studied [20,21]. The photocatalytic degradation of pharmaceuticals has mainly focused on the elimination kinetics and mechanisms of the parent compounds [22,23]. Nevertheless, some degradation products were identified to be more harmful to ecosystems and public health than their parental compounds [24], without consideration their mineralization [25].…”

Section: Introductionmentioning

confidence: 99%

Photocatalytic degradation and mineralization mechanism and toxicity assessment of antivirus drug acyclovir: Experimental and theoretical studies

Gao

et al. 2015

Applied Catalysis B: Environmental

113

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Section: Introductionmentioning

confidence: 99%

Photocatalytic degradation and mineralization mechanism and toxicity assessment of antivirus drug acyclovir: Experimental and theoretical studies

Gao

et al. 2015

Applied Catalysis B: Environmental

113

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“…and peroxide to ensure the presence enough OH Á radicals to degrade the organic matter (ArslanAlaton et al 2009;Prato-Garcia and Buitrón 2013). The use of TiO 2 in AOPs is of great interest due to its high photocatalytic activity, lack of toxicity, biological and photochemical stability in aqueous solutions and its chemically inert nature (Herrmann 1999;Pekakis et al 2006;Sakkas et al 2009). Heterogeneous photocatalytic processes, which degrade contaminants by the generation hydroxyl radicals using a catalyst (TiO 2 ), an oxidant (H 2 O 2 ) and UV radiation, are advantageous due to the lack of mass transfer limitations, operation at ambient conditions and the possible use of solar irradiation (Pekakis et al 2006).…”

Section: Introductionmentioning

confidence: 99%

Kinetic modelling of TOC removal by H2O2/UV, photo-Fenton and heterogeneous photocatalysis processes to treat dye-containing wastewater

López-López

Martín-Pascual

Martı́nez-Toledo

et al. 2015

Int. J. Environ. Sci. Technol.

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Wastewater from textile manufacturing introduces recalcitrant organic compounds, such as dyes and toxic by-products into the environment, where advanced oxidation processes are used to treat toxic and non-biodegradable organic pollutants which cannot be removed by traditional methods. H 2 O 2 /UV, photo-Fenton and heterogeneous photocatalysis (TiO 2 /H 2 O 2 /UV) processes were used, and the effect of the hydraulic retention time on total organic carbon (TOC) removal was evaluated by fitting the analytical data for the three processes to different kinetic models. The high correlation between empirical and modelled data was accomplished with a pseudo-first-order model for the three processes (R 2 = 0.9823 ± 0.017). Mineralisation, decolourisation and disinfection of textile wastewater were investigated with laboratory-scale experiments for each process. Data showed that when 5 g/L H 2 O 2 was used, heterogeneous photocatalysis was the most effective method for the removal of TOC (94.55 %). With respect to colour, all three processes achieved nearly 100 % removal (99.6, 99.3 and 99.9 % at 120 min for the H 2 O 2 /UV, photo-Fenton and TiO 2 /H 2 O 2 /UV processes, respectively).

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“…The modified Freundlich model describes heterogeneous diffusion from the flat surfaces to the solvent using a composition gradient. This result suggests that (1) the system is adsorption-desorption -controlled and (2) the photocatalytic degradation of the dye molecules are occurring on the TiO 2 surface before leaving (desorption) the surface patches [39][40][41]. Table 2 shows the photocatalytic degradation performance of the photocatalyst on MB with the presence of solar-like light and controlled air supply.…”

Section: Photocatalytic Performancementioning

confidence: 99%

Tailoring the photocatalytic reaction rate of a nanostructured TiO2 matrix using additional gas phase oxygen

et al. 2013

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Nanostructured TiO 2 was synthesized by the sol-gel method. The titania was supported on nanoporous poly (styrene-co-divinylbenzene) (PS). The samples were characterized by several techniques (scanning electron microscopy, energy-dispersive spectroscopy, X-ray diffraction, and ultraviolet-visible spectroscopy). Three types of TiO 2 samples were prepared using various temperatures and were studied for the photocatalytic degradation of methylene blue. The photocatalytic efficiency of TiO 2 was observed to increase by activating the TiO 2 surface using nanoporous PS. The photocatalytic performance of the synthesized samples showed a higher performance using molecular O 2 , which was purged through the reactor.

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Heterogeneous photocatalytic degradation of the pharmaceutical agent salbutamol in aqueous titanium dioxide suspensions

Cited by 94 publications

References 29 publications

Photocatalytic degradation and mineralization mechanism and toxicity assessment of antivirus drug acyclovir: Experimental and theoretical studies

Photocatalytic degradation and mineralization mechanism and toxicity assessment of antivirus drug acyclovir: Experimental and theoretical studies

Kinetic modelling of TOC removal by H2O2/UV, photo-Fenton and heterogeneous photocatalysis processes to treat dye-containing wastewater

Tailoring the photocatalytic reaction rate of a nanostructured TiO2 matrix using additional gas phase oxygen

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