Solochrome dark blue azo dye removal by sonophotocatalysis using mn2+ doped zns quantum dots

Detalhes bibliográficos
Autor(a) principal: Patel, Jyoti
Data de Publicação: 2021
Outros Autores: Singh, Ajaya K., Jain, Bhawana, Yadav, Sushma, Carabineiro, Sónia A. C., Susan, Md Abu Bin Hasan
Tipo de documento: Artigo
Idioma: eng
Título da fonte: Repositório Científico de Acesso Aberto de Portugal (Repositórios Cientìficos)
Texto Completo: http://hdl.handle.net/10362/126018
Resumo: SR/WOS-A/CS-82/2018 CEEC-INST/00102/2018
id RCAP_0897ae3587a31a4d33d5bb844b618725
oai_identifier_str oai:run.unl.pt:10362/126018
network_acronym_str RCAP
network_name_str Repositório Científico de Acesso Aberto de Portugal (Repositórios Cientìficos)
repository_id_str 7160
spelling Solochrome dark blue azo dye removal by sonophotocatalysis using mn2+ doped zns quantum dotsDopingOptical propertiesPhotocatalysisQuantum dotsSemiconductorsSonocatalysisCatalysisPhysical and Theoretical ChemistrySR/WOS-A/CS-82/2018 CEEC-INST/00102/2018This work investigates the degradation of the azo dye solochrome dark blue (SDB) by measurement of the photocatalytic, sonocatalytic and sonophotocatalytic activities, under low ultrasonic frequency (40 kHz) and UV-C (254 nm) light, using Mn-doped ZnS semiconductor quantum dots (Mn2+:ZnS Qds) as catalysts, prepared by a simple chemical precipitation procedure. In order to study the different morphological and optical crystal properties, various characterization techniques were used, such as high resolution transmission electron microscopy, scanning electron microscopy, energy dispersive X-ray analysis, X-ray diffraction, N2 adsorption-desorption at −196 °C and ultraviolet-visible spectroscopy. The average particle size of the semiconductor Qds was in the range of 3–4 nm. The optimal parameters affecting dye degradation, such as the catalyst loading, solution pH, time of irradiation, initial concentration of dye, dopant concentration, ultrasonic power and frequency effect were evaluated. The synthesized catalytic material exhibited a high activity for sonophotocatalytic degradation of SDB (89%), larger than that observed for sonocatalysis (69.7%) or photocatalysis (55.2%) alone, which was due to the improved electron-holes separation, formation of more reactive radicals and enhancement of the active surface area. Qds showed good stability and reusability after five repeated cycles. Finally, the degradation products were identified by liquid chromatography-mass spectrometry (LC-MS).LAQV@REQUIMTEDQ - Departamento de QuímicaRUNPatel, JyotiSingh, Ajaya K.Jain, BhawanaYadav, SushmaCarabineiro, Sónia A. C.Susan, Md Abu Bin Hasan2021-10-13T04:36:04Z2021-092021-09-01T00:00:00Zinfo:eu-repo/semantics/publishedVersioninfo:eu-repo/semantics/articleapplication/pdfhttp://hdl.handle.net/10362/126018eng2073-4344PURE: 33609306https://doi.org/10.3390/catal11091025info:eu-repo/semantics/openAccessreponame:Repositório Científico de Acesso Aberto de Portugal (Repositórios Cientìficos)instname:Agência para a Sociedade do Conhecimento (UMIC) - FCT - Sociedade da Informaçãoinstacron:RCAAP2024-03-11T05:06:43Zoai:run.unl.pt:10362/126018Portal AgregadorONGhttps://www.rcaap.pt/oai/openaireopendoar:71602024-03-20T03:45:50.062809Repositório Científico de Acesso Aberto de Portugal (Repositórios Cientìficos) - Agência para a Sociedade do Conhecimento (UMIC) - FCT - Sociedade da Informaçãofalse
dc.title.none.fl_str_mv Solochrome dark blue azo dye removal by sonophotocatalysis using mn2+ doped zns quantum dots
title Solochrome dark blue azo dye removal by sonophotocatalysis using mn2+ doped zns quantum dots
spellingShingle Solochrome dark blue azo dye removal by sonophotocatalysis using mn2+ doped zns quantum dots
Patel, Jyoti
Doping
Optical properties
Photocatalysis
Quantum dots
Semiconductors
Sonocatalysis
Catalysis
Physical and Theoretical Chemistry
title_short Solochrome dark blue azo dye removal by sonophotocatalysis using mn2+ doped zns quantum dots
title_full Solochrome dark blue azo dye removal by sonophotocatalysis using mn2+ doped zns quantum dots
title_fullStr Solochrome dark blue azo dye removal by sonophotocatalysis using mn2+ doped zns quantum dots
title_full_unstemmed Solochrome dark blue azo dye removal by sonophotocatalysis using mn2+ doped zns quantum dots
title_sort Solochrome dark blue azo dye removal by sonophotocatalysis using mn2+ doped zns quantum dots
author Patel, Jyoti
author_facet Patel, Jyoti
Singh, Ajaya K.
Jain, Bhawana
Yadav, Sushma
Carabineiro, Sónia A. C.
Susan, Md Abu Bin Hasan
author_role author
author2 Singh, Ajaya K.
Jain, Bhawana
Yadav, Sushma
Carabineiro, Sónia A. C.
Susan, Md Abu Bin Hasan
author2_role author
author
author
author
author
dc.contributor.none.fl_str_mv LAQV@REQUIMTE
DQ - Departamento de Química
RUN
dc.contributor.author.fl_str_mv Patel, Jyoti
Singh, Ajaya K.
Jain, Bhawana
Yadav, Sushma
Carabineiro, Sónia A. C.
Susan, Md Abu Bin Hasan
dc.subject.por.fl_str_mv Doping
Optical properties
Photocatalysis
Quantum dots
Semiconductors
Sonocatalysis
Catalysis
Physical and Theoretical Chemistry
topic Doping
Optical properties
Photocatalysis
Quantum dots
Semiconductors
Sonocatalysis
Catalysis
Physical and Theoretical Chemistry
description SR/WOS-A/CS-82/2018 CEEC-INST/00102/2018
publishDate 2021
dc.date.none.fl_str_mv 2021-10-13T04:36:04Z
2021-09
2021-09-01T00:00:00Z
dc.type.status.fl_str_mv info:eu-repo/semantics/publishedVersion
dc.type.driver.fl_str_mv info:eu-repo/semantics/article
format article
status_str publishedVersion
dc.identifier.uri.fl_str_mv http://hdl.handle.net/10362/126018
url http://hdl.handle.net/10362/126018
dc.language.iso.fl_str_mv eng
language eng
dc.relation.none.fl_str_mv 2073-4344
PURE: 33609306
https://doi.org/10.3390/catal11091025
dc.rights.driver.fl_str_mv info:eu-repo/semantics/openAccess
eu_rights_str_mv openAccess
dc.format.none.fl_str_mv application/pdf
dc.source.none.fl_str_mv reponame:Repositório Científico de Acesso Aberto de Portugal (Repositórios Cientìficos)
instname:Agência para a Sociedade do Conhecimento (UMIC) - FCT - Sociedade da Informação
instacron:RCAAP
instname_str Agência para a Sociedade do Conhecimento (UMIC) - FCT - Sociedade da Informação
instacron_str RCAAP
institution RCAAP
reponame_str Repositório Científico de Acesso Aberto de Portugal (Repositórios Cientìficos)
collection Repositório Científico de Acesso Aberto de Portugal (Repositórios Cientìficos)
repository.name.fl_str_mv Repositório Científico de Acesso Aberto de Portugal (Repositórios Cientìficos) - Agência para a Sociedade do Conhecimento (UMIC) - FCT - Sociedade da Informação
repository.mail.fl_str_mv
_version_ 1799138062927659008

Registros relacionados