Título
Carbamazepine degradation by visible-light-driven photocatalyst Ag3PO4/GO: Mechanism and pathway
Autor
Guanhan Chen
Wenyi Dong
Hongjie Wang
Zilong Zhao
Feng Wang
Feifei Wang
César Nieto Delgado
Nivel de Acceso
Acceso Abierto
Identificador alterno
doi: https://doi.org/10.1016/j.ese.2021.100143
Materias
Resumen o descripción
"Carbamazepine (CBZ), as one of the most frequently detected pharmaceuticals, is of great concern due to its potential impact on the ecosystem and human health. This study provides an effective approach to remove CBZ by using photocatalyst silver phosphate combined with graphene oxide (Ag3PO4/GO) under visible irradiation. The morphology, composition, and optical properties of Ag3PO4/GO were characterized employing SEM, XRD, and DRS. Graphene oxide could improve the visible-light utilization and promote electron's charge to enhance the photocatalytic performance of Ag3PO4/GO. With the optimal reaction condition of 5.86 mW/cm(2) light intensity, 15-25 degrees C temperature, 5-7 pH, and 0.5 mg/L catalytic dosages, 5 mg/L CBZ could be completely degraded in 30 min, and the apparent rate constant could reach 0.12 min(-1). Additionally, the radical trapping experiments indicated center dot OH and O-2(-)center dot were the main reactive oxygen species employed to eliminate CBZ. The decay pathways of CBZ had been proposed accordingly, and the main product was the low-molecular products. (C) 2021 The Authors. Published by Elsevier B.V. on behalf of Chinese Society for Environmental Sciences, Harbin Institute of Technology, Chinese Research Academy of Environmental Sciences."
Editor
Elsevier
Fecha de publicación
2022
Tipo de publicación
Artículo
Versión de la publicación
Versión publicada
Recurso de información
Formato
application/pdf
Sugerencia de citación
Guanhan Chen, Wenyi Dong, Hongjie Wang, Zilong Zhao, Feng Wang, Feifei Wang, Cesar Nieto-Delgado, Carbamazepine degradation by visible-light-driven photocatalyst Ag3PO4/GO: Mechanism and pathway, Environmental Science and Ecotechnology, Volume 9, 2022, 100143, https://doi.org/10.1016/j.ese.2021.100143
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Repositorio IPICYT
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