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

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

Fuente

1010-6030

Idioma

Inglés

Audiencia

Estudiantes

Investigadores

Repositorio Orígen

REPOSITORIO INSTITUCIONAL DE LA UAEM

Descargas

153

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