Continuous process applied to degradation of triclosan and 2.8-dichlorodibenzene-p-dioxin

This study describes the use of a prototype for the continuous photocatalytic reaction process using Fe/Nb 2 O 5 -immobilized catalyst for triclosan and 2.8-dichlorodibenzene-p-dioxin (2.8-DCDD)’s degradation. The experiments were carried out with different parameters and matrices in a steady state....

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Veröffentlicht in:Environmental science and pollution research international 2021-05, Vol.28 (19), p.23675-23683
Hauptverfasser: Fidelis, Michel Zampieri, Abreu, Eduardo, Josué, Tatiana Gulminie, de Almeida, Lariana Negrão Beraldo, Lenzi, Giane Gonçalves, Santos, Onelia Aparecida Andreo Dos
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Sprache:eng
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Zusammenfassung:This study describes the use of a prototype for the continuous photocatalytic reaction process using Fe/Nb 2 O 5 -immobilized catalyst for triclosan and 2.8-dichlorodibenzene-p-dioxin (2.8-DCDD)’s degradation. The experiments were carried out with different parameters and matrices in a steady state. In addition, photolysis and photocatalytic tests were performed. The results indicated that the generation of 2.8-DCDD was observed in matrices with Cl − . The Fe/Nb 2 O 5 -immobilized catalysts were efficient in the degradation of triclosan and 2.8-dichlorodibenzene-p-dioxin. However, 2.8-DCDD formation was not observed in the ultra-pure water matrix, which indicated influence of ions. The photocatalysis was more efficient than the photolysis when comparing both matrices and radiation. Even with a radiation oscillation, the solar process showed positive results.
ISSN:0944-1344
1614-7499
DOI:10.1007/s11356-020-10902-0