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

被引：10

作者：

De Ceglie, Cristina ^{[1
]}

Pal, Sudipto ^{[2
]}

Murgolo, Sapia ^{[1
]}

Licciulli, Antonio ^{[2
]}

Mascolo, Giuseppe ^{[1
]}

机构：

[1] Ist Ric Acque, Consiglio Nazl Ric, Via F De Blasio, I-70132 Bari, Italy

[2] Univ Salento, Dept Innovat Engn, Via Monteroni, I-73100 Lecce, Italy

来源：

CATALYSTS | 2022年 / 12卷 / 01期

关键词：

mesoporous titania; glass fiber; photocatalysis; contaminants of emerging concern; high resolution mass spectrometry; transformation products; WASTE-WATER; TRANSFORMATION PRODUCTS; TIO2; NANOPARTICLES; IMMOBILIZED TIO2; DEGRADATION; UV; PHARMACEUTICALS; IDENTIFICATION; CARBAMAZEPINE; DISINFECTION;

D O I：

10.3390/catal12010041

中图分类号：

O64 [物理化学（理论化学）、化学物理学];

学科分类号：

070304 ; 081704 ;

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.

引用

页数：14