Título
Paracetamol mineralization by Photo Fenton process catalyzed by a Cu/Fe- PILC under circumneutral pH conditions
Autor
María de Lourdes Hurtado Alva
RUBI ROMERO ROMERO
ARISBEHT MENDOZA ZEPEDA
Sharon Brewer
Kingsley Donkor
ROSA MARIA GOMEZ ESPINOSA
REYNA NATIVIDAD RANGEL
Nivel de Acceso
Acceso Abierto
Materias
Resumen o descripción
This study presents an iron-pillared clay (Fe-PILC) ion-exchanged with copper (Cu/Fe-PILC), as an efficient catalyst to conduct the mineralization of paracetamol through photo-Fenton process at near to neutral pH without precipitation of Fe complexes and without adding any chemicals to modify the initial pH. The specific surface area of the catalyst was of 110m2 g−1 and with the following phases FeO, Fe3O4, Cu2O, CuO determined by XPS analyses. Around 80% of mineralization was reached either by conducting the process at acidic and circumneutral pH conditions, and the efficiency was not significantly higher at pH=2.7. The intermediate reaction products generated at both pH conditions essayed and detected by LC–MS were hydroquinone, acetamide and oxamic acid. Catalyst Cu/Fe-PILC showed an iron leaching of about 3% after reaction while the reusability of the catalyst involved a decrease in mineralization of only 3% under circumneutral conditions. The final TOC of about 20% can be ascribed to the presence of acetamide that was found to be the most reluctant towards oxidation.
CONACYT 269093 PRODEP (511-6/178590) CONACYT (Estancia sabática) 266149
Editor
Journal of Photochemistry
&
Photobiology A: Chemistry
Fecha de publicación
14 de enero de 2019
Tipo de publicación
Artículo
Recurso de información
Fuente
1010-6030
Idioma
Inglés
Audiencia
Estudiantes
Investigadores
Repositorio Orígen
REPOSITORIO INSTITUCIONAL DE LA UAEM
Descargas
153