Innovative Black TiO 2 Photocatalyst for Effective Water Remediation Under Visible Light Illumination Using Flow Systems.

Autor: Yaghmaei, Mahzad, da Silva, Daliane R. C., Rutajoga, Nelson, Currie, Sara, Li, Yiran, Vallieres, Morgan, Silvero, Maria Jazmin, Joshi, Neeraj, Wang, Bowen, Scaiano, Juan C.
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Zdroj: Catalysts (2073-4344); Nov2024, Vol. 14 Issue 11, p775, 15p
Abstrakt: Contaminated drinking water is a major health hazard in large urban areas as well as remote communities. Several pollutants detected in rivers and lakes are hormone disruptors that are harmful to consumers as well as aquatic life. In this contribution, we present a new material, synthesized using novel green technologies, designed for solar- or LED-driven degradation of pollutants. This material is based on a glass fiber support, loaded with black TiO2, a modified form of TiO2 with strong visible light absorption and without any toxic metal or non-metal dopants. This photocatalyst is fully compatible with flow applications. The effectiveness of the catalyst is demonstrated with crocin and 17β-estradiol, the former being a natural carotenoid used as a screening tool and the latter being a common hormonal disruptor. Our work shows that under visible light illumination, our supported black TiO2 can degrade these water contaminants with greater efficiency than conventional TiO2. We envision that our findings can contribute to the production of inexpensive, large-scale solar or LED-based water decontamination systems that could be rapidly deployed to sites in need. Operation of such systems would require minimal training and could be monitored remotely. In addition to the catalyst's non-toxicity and inflow compatibility, the material also has a long shelf life and is easy and inexpensive to produce, making it an attractive candidate for developing water treatment devices. [ABSTRACT FROM AUTHOR]
Databáze: Complementary Index
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