Investigation of Photocatalysis by Mesoporous Titanium Dioxide Supported on Glass Fibers as an Integrated Technology for Water Remediation

Catalysts

Antonio Licciulli¹  Sudipto Pal¹  Sapia Murgolo²  Cristina De Ceglie²  Giuseppe Mascolo² 

[1] Department of Innovation Engineering, University of Salento, Via Per Monteroni, 73100 Lecce, Italy;Istituto di Ricerca sulle Acque, Consiglio Nazionale delle Ricerche, Via F. De Blasio 5, 70132 Bari, Italy;

关键词: mesoporous titania;    glass fiber;    photocatalysis;    contaminants of emerging concern;    high resolution mass spectrometry;    transformation products;   

DOI  :  10.3390/catal12010041

来源: DOAJ

【 摘 要 】

The photocatalytic efficiency of an innovative UV-light catalyst consisting of a mesoporous TiO₂ coating on glass fibers was investigated for the degradation of pharmaceuticals (PhACs) in wastewater effluents. Photocatalytic activity of the synthesized material was tested, for the first time, on a secondary wastewater effluent spiked with nine PhACs and the results were compared with the photolysis used as a benchmark treatment. Replicate experiments were performed in a flow reactor equipped with a UV radiation source emitting at 254 nm. Interestingly, the novel photocatalyst led to the increase of the degradation of carbamazepine and trimethoprim (about 2.2 times faster than the photolysis). Several transformation products (TPs) resulting from both the spiked PhACs and the compounds naturally occurring in the secondary wastewater effluent were identified through UPLC-QTOF/MS/MS. Some of them, produced mainly from carbamazepine and trimethoprim, were still present at the end of the photolytic treatment, while they were completely or partially removed by the photocatalytic treatment.

【 授权许可】

Unknown