6533b82afe1ef96bd128b71d
RESEARCH PRODUCT
Photocatalytic degradation of toluene in aqueous suspensions of polycrystalline TiO2 in the presence of the surfactant tetradecyldimethylamino-oxide
Vincenzo AugugliaroM. L. Turco LiveriLeonardo PalmisanoGiuseppe MarcìVittorio LoddoCarmelo SbrizioloMario Schiavellosubject
Benzaldehydechemistry.chemical_compoundMuconic acidchemistryHydroquinoneBenzyl alcoholPhotocatalysisPhotochemistryTolueneToluene oxidationBenzoic aciddescription
The heterogeneous photocatalytic method has been used for carrying out the toluene oxidation in synthetic aqueous solutions containing also a zwitterionic surfactant, i.e. tetradecyldimethylamino-oxide (C 14 DMAO). A batch photoreactor with immersed lamp and two kinds of polycrystalline TiO 2 catalysts were used. The results indicate a substantial increase of the toluene degradation rate in the presence of the surfactant; the complete photo- oxidation of toluene was achieved in a few hours of irradiation at the used experimental conditions; at higher irradiation times also C 14 DMAO was completely degraded. The main intermediates of toluene degradation were p-cresol (4-methyiphenol) and benzaldehyde. Depending on the used catalyst, benzyl alcohol, benzoic acid, hydroquinone, trans, trans muconic acid and pyrogallol (1,2,3 trihydroxybenzene) were also detected.
| year | journal | country | edition | language |
|---|---|---|---|---|
| 2000-01-01 |