| Texto completo | |
| Autor(es): |
Palharim, Priscila Hasse
;
Caira, Maria Clara D'Amaro
;
Gusmao, Carolina
;
Ramos, Bruno
;
da Camara, Alan Gomes
;
Pacheco, Jose Geraldo A.
;
Rodrigues Jr, Orlando
;
Teixeira, Antonio Carlos Silva Costa
Número total de Autores: 8
|
| Tipo de documento: | Artigo Científico |
| Fonte: | JOURNAL OF PHOTOCHEMISTRY AND PHOTOBIOLOGY A-CHEMISTRY; v. 450, p. 15-pg., 2024-01-06. |
| Resumo | |
In this work, different structure-directing agents (citric acid, oxalic acid, urea, polyethylene glycol and Triton X100) were used to synthesize WO3-AgCl photocatalysts by a simple one-step hydrothermal method. The successful synthesis of the materials was proved through various characterization techniques (XRD, BET, SEM, TEM, EDS, UV-vis DRS, XPS, EPR, Mott-Schottky and photoluminescence). The directing agent strongly influenced the morphology of the catalysts, with the material synthesized with citric acid showing the most homogeneous distribution of WO3 and AgCl particles, and the highest photocatalytic activity (100.0% acetaminophen removal after 30 min; k = 0.212 min -1). Stability tests resulted in a performance reduction of only 18.8% after four cycle times. Degradation in real effluent from a pharmaceutical industrial facility showed 83.6% acetaminophen removal. In addition, experiments in a continuous microstructured packed bed reactor revealed 97.9% steadystate contaminant removal. (AU) | |
| Processo FAPESP: | 21/04281-0 - Estudo Sistemático do Efeito de Aditivos Químicos na Síntese de Fotocatalisadores de WO3 Dopados com Prata |
| Beneficiário: | Maria Clara D'Amaro Caira |
| Modalidade de apoio: | Bolsas no Brasil - Iniciação Científica |
| Processo FAPESP: | 19/24158-9 - Destinação ambiental de poluentes emergentes em águas superficiais e alternativas sustentáveis de mitigação: abordagem híbrida experimental-computacional |
| Beneficiário: | Antonio Carlos Silva Costa Teixeira |
| Modalidade de apoio: | Auxílio à Pesquisa - Regular |