Synthesis of citrate–modified cufes2 catalyst with significant effect on the photo–fenton degradation efficiency of bisphenol a under visible light and near–neutral PH
In this study, for the first time, citric acid was employed as a chelating agent in CuFeS2 synthesis in order to accelerate the regeneration of Fe2+ during the photo–Fenton reaction, promoting a faster production of •OH radicals. The novel CuFeS2 material showed remarkable catalytic efficiency for b...
- Autores:
-
da Silveira Salla, Julia
Boit Martinello, Katiada
Dotto, Guilherme Luiz
García-Díaz, Esmeralda
Javed, Hassan
Alvarez, Pedro
Foletto, Edson
- Tipo de recurso:
- Article of journal
- Fecha de publicación:
- 2020
- Institución:
- Corporación Universidad de la Costa
- Repositorio:
- REDICUC - Repositorio CUC
- Idioma:
- eng
- OAI Identifier:
- oai:repositorio.cuc.edu.co:11323/6101
- Acceso en línea:
- https://hdl.handle.net/11323/6101
https://repositorio.cuc.edu.co/
- Palabra clave:
- CuFeS2
Citric acid
Photo–fenton
Bisphenol A
Intermediates
Hydroxyl radical
- Rights
- openAccess
- License
- CC0 1.0 Universal
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|
| dc.title.spa.fl_str_mv |
Synthesis of citrate–modified cufes2 catalyst with significant effect on the photo–fenton degradation efficiency of bisphenol a under visible light and near–neutral PH |
| title |
Synthesis of citrate–modified cufes2 catalyst with significant effect on the photo–fenton degradation efficiency of bisphenol a under visible light and near–neutral PH |
| spellingShingle |
Synthesis of citrate–modified cufes2 catalyst with significant effect on the photo–fenton degradation efficiency of bisphenol a under visible light and near–neutral PH CuFeS2 Citric acid Photo–fenton Bisphenol A Intermediates Hydroxyl radical |
| title_short |
Synthesis of citrate–modified cufes2 catalyst with significant effect on the photo–fenton degradation efficiency of bisphenol a under visible light and near–neutral PH |
| title_full |
Synthesis of citrate–modified cufes2 catalyst with significant effect on the photo–fenton degradation efficiency of bisphenol a under visible light and near–neutral PH |
| title_fullStr |
Synthesis of citrate–modified cufes2 catalyst with significant effect on the photo–fenton degradation efficiency of bisphenol a under visible light and near–neutral PH |
| title_full_unstemmed |
Synthesis of citrate–modified cufes2 catalyst with significant effect on the photo–fenton degradation efficiency of bisphenol a under visible light and near–neutral PH |
| title_sort |
Synthesis of citrate–modified cufes2 catalyst with significant effect on the photo–fenton degradation efficiency of bisphenol a under visible light and near–neutral PH |
| dc.creator.fl_str_mv |
da Silveira Salla, Julia Boit Martinello, Katiada Dotto, Guilherme Luiz García-Díaz, Esmeralda Javed, Hassan Alvarez, Pedro Foletto, Edson |
| dc.contributor.author.spa.fl_str_mv |
da Silveira Salla, Julia Boit Martinello, Katiada Dotto, Guilherme Luiz García-Díaz, Esmeralda Javed, Hassan Alvarez, Pedro Foletto, Edson |
| dc.subject.spa.fl_str_mv |
CuFeS2 Citric acid Photo–fenton Bisphenol A Intermediates Hydroxyl radical |
| topic |
CuFeS2 Citric acid Photo–fenton Bisphenol A Intermediates Hydroxyl radical |
| description |
In this study, for the first time, citric acid was employed as a chelating agent in CuFeS2 synthesis in order to accelerate the regeneration of Fe2+ during the photo–Fenton reaction, promoting a faster production of •OH radicals. The novel CuFeS2 material showed remarkable catalytic efficiency for bisphenol A (BPA) degradation during the photo–Fenton process under visible light and near–natural pH, with a rate 10 times faster than that of CuFeS2 prepared without citrate. Furthermore, CuFeS2 promoted rapid generation of •OH radicals and showed efficient H2O2 consumption, sustaining the catalytic efficiency and stability even after 4 consecutive cycles of use. CuFeS2 was also efficient for BPA degradation from a municipal wastewater treatment plant effluent. BPA by–products were identified and a mechanism for BPA degradation was proposed. After the photo–Fenton process, no Fe3+ species were identified on the catalyst surface by X–ray photoelectron spectroscopy (XPS), indicating that citric acid accelerated the conversion of Fe3+/Fe2+, thus increasing the generation of •OH and the process efficiency. |
| publishDate |
2020 |
| dc.date.accessioned.none.fl_str_mv |
2020-03-11T14:09:17Z |
| dc.date.available.none.fl_str_mv |
2020-03-11T14:09:17Z |
| dc.date.issued.none.fl_str_mv |
2020-03-09 |
| dc.type.spa.fl_str_mv |
Artículo de revista |
| dc.type.coar.fl_str_mv |
http://purl.org/coar/resource_type/c_2df8fbb1 |
| dc.type.coar.spa.fl_str_mv |
http://purl.org/coar/resource_type/c_6501 |
| dc.type.content.spa.fl_str_mv |
Text |
| dc.type.driver.spa.fl_str_mv |
info:eu-repo/semantics/article |
| dc.type.redcol.spa.fl_str_mv |
http://purl.org/redcol/resource_type/ART |
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info:eu-repo/semantics/acceptedVersion |
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http://purl.org/coar/resource_type/c_6501 |
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acceptedVersion |
| dc.identifier.uri.spa.fl_str_mv |
https://hdl.handle.net/11323/6101 |
| dc.identifier.instname.spa.fl_str_mv |
Corporación Universidad de la Costa |
| dc.identifier.reponame.spa.fl_str_mv |
REDICUC - Repositorio CUC |
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https://repositorio.cuc.edu.co/ |
| url |
https://hdl.handle.net/11323/6101 https://repositorio.cuc.edu.co/ |
| identifier_str_mv |
Corporación Universidad de la Costa REDICUC - Repositorio CUC |
| dc.language.iso.none.fl_str_mv |
eng |
| language |
eng |
| dc.rights.spa.fl_str_mv |
CC0 1.0 Universal |
| dc.rights.uri.spa.fl_str_mv |
http://creativecommons.org/publicdomain/zero/1.0/ |
| dc.rights.accessrights.spa.fl_str_mv |
info:eu-repo/semantics/openAccess |
| dc.rights.coar.spa.fl_str_mv |
http://purl.org/coar/access_right/c_abf2 |
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CC0 1.0 Universal http://creativecommons.org/publicdomain/zero/1.0/ http://purl.org/coar/access_right/c_abf2 |
| eu_rights_str_mv |
openAccess |
| dc.publisher.spa.fl_str_mv |
Universidad de la Costa |
| institution |
Corporación Universidad de la Costa |
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da Silveira Salla, Julia3dca366ee4e20cc91b03e8b411e35ea4Boit Martinello, Katiada36999c1a5fcfed68ca0ac42879daa314Dotto, Guilherme Luizdb0ab5734a8bbe410bb09d3a2d6f3a41García-Díaz, Esmeraldacbc4bfc463ed5c3724c138c818b1d92cJaved, Hassan5dc6f3165d9145ebb0559a5f2b9ced48Alvarez, Pedroab989dc3075fba6cc5e8bd4850ea68f6Foletto, Edsond9149475c6fe5794d77d0ccf7443464e2020-03-11T14:09:17Z2020-03-11T14:09:17Z2020-03-09https://hdl.handle.net/11323/6101Corporación Universidad de la CostaREDICUC - Repositorio CUChttps://repositorio.cuc.edu.co/In this study, for the first time, citric acid was employed as a chelating agent in CuFeS2 synthesis in order to accelerate the regeneration of Fe2+ during the photo–Fenton reaction, promoting a faster production of •OH radicals. The novel CuFeS2 material showed remarkable catalytic efficiency for bisphenol A (BPA) degradation during the photo–Fenton process under visible light and near–natural pH, with a rate 10 times faster than that of CuFeS2 prepared without citrate. Furthermore, CuFeS2 promoted rapid generation of •OH radicals and showed efficient H2O2 consumption, sustaining the catalytic efficiency and stability even after 4 consecutive cycles of use. CuFeS2 was also efficient for BPA degradation from a municipal wastewater treatment plant effluent. BPA by–products were identified and a mechanism for BPA degradation was proposed. After the photo–Fenton process, no Fe3+ species were identified on the catalyst surface by X–ray photoelectron spectroscopy (XPS), indicating that citric acid accelerated the conversion of Fe3+/Fe2+, thus increasing the generation of •OH and the process efficiency.engUniversidad de la CostaCC0 1.0 Universalhttp://creativecommons.org/publicdomain/zero/1.0/info:eu-repo/semantics/openAccesshttp://purl.org/coar/access_right/c_abf2CuFeS2Citric acidPhoto–fentonBisphenol AIntermediatesHydroxyl radicalSynthesis of citrate–modified cufes2 catalyst with significant effect on the photo–fenton degradation efficiency of bisphenol a under visible light and near–neutral PHArtículo de revistahttp://purl.org/coar/resource_type/c_6501http://purl.org/coar/resource_type/c_2df8fbb1Textinfo:eu-repo/semantics/articlehttp://purl.org/redcol/resource_type/ARTinfo:eu-repo/semantics/acceptedVersionORIGINALSYNTHESIS OF CITRATE–MODIFIED CUFES2 CATALYST WITH SIGNIFICANT EFFECT ON THE PHOTO–FENTON DEGRADATION EFFICIENCY OF BISPHENOL A UNDER VISIBLE LIGHT AND NEAR–NEUTRAL PH.pdfSYNTHESIS OF CITRATE–MODIFIED CUFES2 CATALYST WITH SIGNIFICANT EFFECT ON THE PHOTO–FENTON DEGRADATION EFFICIENCY OF BISPHENOL A UNDER VISIBLE LIGHT AND NEAR–NEUTRAL PH.pdfapplication/pdf85720https://repositorio.cuc.edu.co/bitstream/11323/6101/1/SYNTHESIS%20OF%20CITRATE%e2%80%93MODIFIED%20CUFES2%20CATALYST%20WITH%20SIGNIFICANT%20EFFECT%20ON%20THE%20PHOTO%e2%80%93FENTON%20DEGRADATION%20EFFICIENCY%20OF%20BISPHENOL%20A%20UNDER%20VISIBLE%20LIGHT%20AND%20NEAR%e2%80%93NEUTRAL%20PH.pdfb1d83005484be1e0aa110707bd9e1817MD51open accessCC-LICENSElicense_rdflicense_rdfapplication/rdf+xml; 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