Al/Cu-PILC as a Photo-Fenton Catalyst: Paracetamol Mineralization

Al/Cu-PILC as a Photo-Fenton Catalyst: Paracetamol Mineralization

dc.creatorHurtado Alva, María de Lourdes; 368065
dc.creatorAVILES GARCIA, OSMIN; 421417
dc.creatorBrewer, Sharon;#0000-0002-4577-3539
dc.creatorDonkor, Kingsley;#0000-0002-3785-8081
dc.creatorROMERO ROMERO, RUBI; 121454
dc.creatorGOMEZ ESPINOSA, ROSA MARIA; 121920
dc.creatorALVARADO ROLON, OSCAR; 481425
dc.creatorNATIVIDAD RANGEL, REYNA; 87755
dc.creatorHurtado Alva, María de Lourdes
dc.creatorAVILES GARCIA, OSMIN
dc.creatorBrewer, Sharon
dc.creatorDonkor, Kingsley
dc.creatorROMERO ROMERO, RUBI
dc.creatorGOMEZ ESPINOSA, ROSA MARIA
dc.creatorALVARADO ROLON, OSCAR
dc.creatorNATIVIDAD RANGEL, REYNA
dc.date2022-08-04T03:06:04Z
dc.date2022-08-04T03:06:04Z
dc.date2022-07-01
dc.date.accessioned2022-10-13T00:29:52Z
dc.date.available2022-10-13T00:29:52Z
dc.identifier2470-1343
dc.identifierhttp://hdl.handle.net/20.500.11799/113257
dc.identifier.urihttps://repositorioslatinoamericanos.uchile.cl/handle/2250/4156291
dc.descriptionARTICULO EN REVISTA INDIZADA
dc.descriptionPillared clays have shown to effectively catalyze the photo-Fenton process without the necessity of acidic conditions, which is a very attractive feature from the perspective of environmentally friendly processes, especially when high natural abundance of chemical elements are incorporated. In this work, the catalytic activity of Al/Cu interlayered pillared clays for the degradation and mineralization of paracetamol through a photo-Fenton-like process was investigated. Al/Cu-pillared clays were prepared by adding ane Al/Cu pillaring solution to a bentonite suspension. X-ray diffraction (XRD) confirmed the enlargement of the interlayer space of the clay provoked by the pillaring process and Al and Cu species in the prepared samples were verified by atomic absorption spectroscopy (AAS). The specific surface area of pure bentonite was 2-fold increased after the Al/Cu pillaring process. A synthetic paracetamol solution with an initial concentration of 100 ppm was prepared for the assessment of the activity of the prepared materials. Different catalyst concentrations were tested (0.2, 0.5, 0.75, and 1 g L–1) and the complete removal of paracetamol was achieved in all cases, but the highest mineralization rate (69.8 mg total organic carbon (TOC) gcat–1 h–1) corresponds to the catalyst loading of 0.5 g L–1. An ultraviolet-C (UVC) light source was employed, and no adjustment of the pH to acidic conditions was needed to achieve these results. Liquid chromatography coupled to mass spectroscopy (LC-MS) was employed to identify the reaction intermediates of paracetamol degradation. A proposed pathway for the oxidation of paracetamol molecule is presented. The effect of Cu content in the pillared clay and the stability and reusability of the catalyst were also assessed. The kinetic constants of paracetamol removal were 0.2318 and 0.0698 min–1, under photo-Fenton and UV + H2O2 processes, respectively.
dc.descriptionCOMECYT 026
dc.languageeng
dc.languageeng
dc.publisherACS
dc.relation7
dc.rightsopenAccess
dc.rightshttp://creativecommons.org/licenses/by-nc/4.0
dc.rightshttp://creativecommons.org/licenses/by-nc/4.0
dc.subjectFOTO-FENTON
dc.subjectFOTOCATALISIS
dc.subjectPHOTO-FENTON
dc.subjectPILLARED CLAYS
dc.subjectEMERGING CONTAMINANTS
dc.subjectWATER POLLUTION
dc.subjectcontaminación de agua
dc.subjectARCILLAS PILAREADAS
dc.subjectFOTO-FENTON
dc.subjectFOTOCATALISIS
dc.subjectPHOTO-FENTON
dc.subjectPILLARED CLAYS
dc.subjectEMERGING CONTAMINANTS
dc.subjectWATER POLLUTION
dc.subjectcontaminación de agua
dc.subjectARCILLAS PILAREADAS
dc.subjectINGENIERÍA Y TECNOLOGÍA
dc.subjectINGENIERÍA Y TECNOLOGÍA
dc.titleAl/Cu-PILC as a Photo-Fenton Catalyst: Paracetamol Mineralization
dc.titleAl/Cu-PILC as a Photo-Fenton Catalyst: Paracetamol Mineralization
dc.typeArtículo
dc.typeArtículo
dc.typearticle


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