Monitoring the removal of a mixture of emerging pharmaceutical contaminants assisted by a fixed TiO2 support in a photocatalytic process
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| Natura: | Artículo científico |
| Lingua: | en |
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Universidad UTE
2025
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| _version_ | 1876451292983853056 |
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| author | Andres Perez Gonzalez |
| author_facet | Andres Perez Gonzalez |
| contents | Monitoring the removal of a mixture of emerging pharmaceutical contaminants assisted by a fixed TiO2 support in a photocatalytic process Andres Perez Gonzalez Veronica Pinos Velez Piercosimo Tripaldi Ingeniería Photocatalysis Titanium dioxide emerging pharmaceutical contaminants This study evaluated the efficacy of removing estradiol, sulfamethoxazole, and paracetamol from water using titanium dioxide (TiO₂). A layer of TiO₂ was fixed onto ceramic tiles and exposed to a solution of the pharmaceuticals under 254 nm ultraviolet light. The TiO₂ exhibited a surface area of 2.78 m²/g with Methylene Blue, which favors the adsorption and subsequent degradation of the pharmaceuticals. After 60 minutes of exposure, the removal of estradiol was 69.43 %, paracetamol 50.84%, and sulfamethoxazole 24.80 %. Additionally, it was determined that the degradation kinetics of each drug varied, with some fitting first-order models (estradiol and paracetamol) and others fitting second-order models (sulfamethoxazole). The time in minutes required for the drug concentration to decrease to one-tenth of its original concentration was 107 for estradiol, 190 minutes for paracetamol, and 244 for sulfamethoxazole. Photocatalysis with TiO₂ immobilized on ceramics can be used to treat water contaminated with mixtures of pharmaceuticals without observing a restrictive effect between the drugs. 2025 artículo científico 1390-6542 https://www.redalyc.org/articulo.oa?id=572281679005 https://www.redalyc.org/journal/5722/572281679005/ https://www.redalyc.org/journal/5722/572281679005/html/ https://www.redalyc.org/journal/5722/572281679005/572281679005.epub https://www.redalyc.org/journal/5722/572281679005/movil 10.29019/enfoqueute.1122 en http://www.redalyc.org/revista.oa?id=5722 Enfoque UTE application/pdf Universidad UTE Enfoque UTE (Ecuador) Num.2 Vol.16 |
| format | Artículo científico |
| id | redalyc_572281679005 |
| institution | Redalyc |
| language | en |
| publishDate | 2025 |
| publisher | Universidad UTE |
| spellingShingle | Monitoring the removal of a mixture of emerging pharmaceutical contaminants assisted by a fixed TiO2 support in a photocatalytic process Andres Perez Gonzalez Ingeniería Photocatalysis Titanium dioxide emerging pharmaceutical contaminants Monitoring the removal of a mixture of emerging pharmaceutical contaminants assisted by a fixed TiO2 support in a photocatalytic process Andres Perez Gonzalez Veronica Pinos Velez Piercosimo Tripaldi Ingeniería Photocatalysis Titanium dioxide emerging pharmaceutical contaminants This study evaluated the efficacy of removing estradiol, sulfamethoxazole, and paracetamol from water using titanium dioxide (TiO₂). A layer of TiO₂ was fixed onto ceramic tiles and exposed to a solution of the pharmaceuticals under 254 nm ultraviolet light. The TiO₂ exhibited a surface area of 2.78 m²/g with Methylene Blue, which favors the adsorption and subsequent degradation of the pharmaceuticals. After 60 minutes of exposure, the removal of estradiol was 69.43 %, paracetamol 50.84%, and sulfamethoxazole 24.80 %. Additionally, it was determined that the degradation kinetics of each drug varied, with some fitting first-order models (estradiol and paracetamol) and others fitting second-order models (sulfamethoxazole). The time in minutes required for the drug concentration to decrease to one-tenth of its original concentration was 107 for estradiol, 190 minutes for paracetamol, and 244 for sulfamethoxazole. Photocatalysis with TiO₂ immobilized on ceramics can be used to treat water contaminated with mixtures of pharmaceuticals without observing a restrictive effect between the drugs. 2025 artículo científico 1390-6542 https://www.redalyc.org/articulo.oa?id=572281679005 https://www.redalyc.org/journal/5722/572281679005/ https://www.redalyc.org/journal/5722/572281679005/html/ https://www.redalyc.org/journal/5722/572281679005/572281679005.epub https://www.redalyc.org/journal/5722/572281679005/movil 10.29019/enfoqueute.1122 en http://www.redalyc.org/revista.oa?id=5722 Enfoque UTE application/pdf Universidad UTE Enfoque UTE (Ecuador) Num.2 Vol.16 |
| title | Monitoring the removal of a mixture of emerging pharmaceutical contaminants assisted by a fixed TiO2 support in a photocatalytic process |
| topic | Ingeniería Photocatalysis Titanium dioxide emerging pharmaceutical contaminants |
| url | https://www.redalyc.org/articulo.oa?id=572281679005 https://www.redalyc.org/journal/5722/572281679005/ https://www.redalyc.org/journal/5722/572281679005/html/ https://www.redalyc.org/journal/5722/572281679005/572281679005.epub https://www.redalyc.org/journal/5722/572281679005/movil |