Heterogenization of water-soluble porphyrins in Ti/TiO2 nanotubes electrodes: experimental and theoretical insights for atrazine degradation

Heterogenization of water-soluble porphyrins in Ti/TiO2 nanotubes electrodes: experimental and theoretical insights for atrazine degradation

Pollutant degradation has been a very important topic in environmental research. The present paper presents an approach to degrade atrazine, an environmentally harmful herbicide that has been widely used in the agriculture industry. Ti/TiO 2 nanotube electrodes modified by porphyrins were prepared f...

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Bibliographic Details
Published in:Research on chemical intermediates Vol. 49; no. 12; pp. 5635 - 5654
Main Authors: Lage, Ana Luísa Almeida, Ribeiro, Juliana Martins, Magalhães, Tairine Fernanda da Silva, de Souza-Fagundes, Elaine Maria, Venâncio, Mateus Fernandes, Brugnera, Michelle Fernanda, Martins, Dayse Carvalho da Silva
Format: Journal Article
Language:English
Published: Dordrecht Springer Netherlands 01-12-2023
Springer Nature B.V
Subjects:
Atrazine
Catalysis
Chemistry
Chemistry and Materials Science
Degradation
Electrodes
Herbicides
Inorganic Chemistry
Manganese
Nanotubes
Photolysis
Physical Chemistry
Porphyrins
Surface water
Titanium dioxide
Degradation
Catalysis
Porphyrin
Toxicity
Pesticides
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Summary:Pollutant degradation has been a very important topic in environmental research. The present paper presents an approach to degrade atrazine, an environmentally harmful herbicide that has been widely used in the agriculture industry. Ti/TiO 2 nanotube electrodes modified by porphyrins were prepared for photolysis, photocatalysis, and photoelectrocatalysis (PEC) applications. Manganese- and free base porphyrin were studied, and it was possible to verify the kinetic model more suitable for each system. Unfortunately, Mn-porphyrins had an inhibitory effect on the ATZ degradation activity by Ti/TiO 2 nanotube electrodes. Although the Ti/TiO 2 -free base porphyrin under the PEC experiment (using surface water from a Brazilian river) did not lead to the best degradation system, we could verify the formed products, which have been not described for other porphyrin-mediated atrazine degradation, are equal or more toxic than the original atrazine. We highlight the importance of verifying the products formed in the degradation systems and determining their toxicities.
ISSN:0922-6168
1568-5675
DOI:10.1007/s11164-023-05133-0