Novel one-pot synthesis and sensitisation of new BiOCl-Bi2S3 nanostructures from DES medium displaying high photocatalytic activity
Autor(a) principal: | |
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Data de Publicação: | 2016 |
Outros Autores: | , , |
Tipo de documento: | Artigo |
Idioma: | eng |
Título da fonte: | Repositório Científico de Acesso Aberto de Portugal (Repositórios Cientìficos) |
Texto Completo: | http://hdl.handle.net/10773/19237 |
Resumo: | A novel route to synthesise Bi2S3-sensitised BiOCl nanoparticles from deep eutectic solvent medium at room temperature by a one-pot approach is reported. The influence of the temperature, sulphur source, concentration of reactants and presence of water, on the morphological, structural and microstructural, optical and photocatalytic properties of the synthesised nanoparticles is analysed and discussed. Stable and crystalline BiOCl hybrid structures with shapes from sheet-like to flower-like hierarchical aggregates and (001) and (110) dominant crystallographic orientation were obtained. The sensitisation of BiOCl with Bi2S3 was successfully achieved in situ during synthesis by an ion-exchange process and the relative proportion of the components (BiOCl and Bi2S3) was controlled by the Bi : S ratio in the synthesis medium and by the sulphur precursor. The sensitiser nanomaterial (Bi2S3) extends the BiOCl photoactive region to the visible range. Also it favours charge separation and reducing the electron/hole pair recombination and therefore increasing the photocatalytic performance. The prepared composite materials show high ability to adsorb rhodamine B cationic dye and the complete photocatalytic degradation was achieved within 45 min (75 mg per g of catalyst). |
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Novel one-pot synthesis and sensitisation of new BiOCl-Bi2S3 nanostructures from DES medium displaying high photocatalytic activityVISIBLE-LIGHTRHODAMINE-BSOLVOTHERMAL SYNTHESISBISMUTH SULFIDEMETHYLENE-BLUEORGANIC-DYESBAND-GAPBIOCLBI2S3WATERA novel route to synthesise Bi2S3-sensitised BiOCl nanoparticles from deep eutectic solvent medium at room temperature by a one-pot approach is reported. The influence of the temperature, sulphur source, concentration of reactants and presence of water, on the morphological, structural and microstructural, optical and photocatalytic properties of the synthesised nanoparticles is analysed and discussed. Stable and crystalline BiOCl hybrid structures with shapes from sheet-like to flower-like hierarchical aggregates and (001) and (110) dominant crystallographic orientation were obtained. The sensitisation of BiOCl with Bi2S3 was successfully achieved in situ during synthesis by an ion-exchange process and the relative proportion of the components (BiOCl and Bi2S3) was controlled by the Bi : S ratio in the synthesis medium and by the sulphur precursor. The sensitiser nanomaterial (Bi2S3) extends the BiOCl photoactive region to the visible range. Also it favours charge separation and reducing the electron/hole pair recombination and therefore increasing the photocatalytic performance. The prepared composite materials show high ability to adsorb rhodamine B cationic dye and the complete photocatalytic degradation was achieved within 45 min (75 mg per g of catalyst).ROYAL SOC CHEMISTRY2017-12-07T19:05:42Z2016-01-01T00:00:00Z2016info:eu-repo/semantics/publishedVersioninfo:eu-repo/semantics/articleapplication/pdfhttp://hdl.handle.net/10773/19237eng2046-206910.1039/c6ra14474hFerreira, V. C.Neves, M. C.Hillman, A. R.Monteiro, O. C.info: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:RCAAP2024-02-22T11:37:18Zoai:ria.ua.pt:10773/19237Portal AgregadorONGhttps://www.rcaap.pt/oai/openaireopendoar:71602024-03-20T02:54:02.836369Repositório 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 |
Novel one-pot synthesis and sensitisation of new BiOCl-Bi2S3 nanostructures from DES medium displaying high photocatalytic activity |
title |
Novel one-pot synthesis and sensitisation of new BiOCl-Bi2S3 nanostructures from DES medium displaying high photocatalytic activity |
spellingShingle |
Novel one-pot synthesis and sensitisation of new BiOCl-Bi2S3 nanostructures from DES medium displaying high photocatalytic activity Ferreira, V. C. VISIBLE-LIGHT RHODAMINE-B SOLVOTHERMAL SYNTHESIS BISMUTH SULFIDE METHYLENE-BLUE ORGANIC-DYES BAND-GAP BIOCL BI2S3 WATER |
title_short |
Novel one-pot synthesis and sensitisation of new BiOCl-Bi2S3 nanostructures from DES medium displaying high photocatalytic activity |
title_full |
Novel one-pot synthesis and sensitisation of new BiOCl-Bi2S3 nanostructures from DES medium displaying high photocatalytic activity |
title_fullStr |
Novel one-pot synthesis and sensitisation of new BiOCl-Bi2S3 nanostructures from DES medium displaying high photocatalytic activity |
title_full_unstemmed |
Novel one-pot synthesis and sensitisation of new BiOCl-Bi2S3 nanostructures from DES medium displaying high photocatalytic activity |
title_sort |
Novel one-pot synthesis and sensitisation of new BiOCl-Bi2S3 nanostructures from DES medium displaying high photocatalytic activity |
author |
Ferreira, V. C. |
author_facet |
Ferreira, V. C. Neves, M. C. Hillman, A. R. Monteiro, O. C. |
author_role |
author |
author2 |
Neves, M. C. Hillman, A. R. Monteiro, O. C. |
author2_role |
author author author |
dc.contributor.author.fl_str_mv |
Ferreira, V. C. Neves, M. C. Hillman, A. R. Monteiro, O. C. |
dc.subject.por.fl_str_mv |
VISIBLE-LIGHT RHODAMINE-B SOLVOTHERMAL SYNTHESIS BISMUTH SULFIDE METHYLENE-BLUE ORGANIC-DYES BAND-GAP BIOCL BI2S3 WATER |
topic |
VISIBLE-LIGHT RHODAMINE-B SOLVOTHERMAL SYNTHESIS BISMUTH SULFIDE METHYLENE-BLUE ORGANIC-DYES BAND-GAP BIOCL BI2S3 WATER |
description |
A novel route to synthesise Bi2S3-sensitised BiOCl nanoparticles from deep eutectic solvent medium at room temperature by a one-pot approach is reported. The influence of the temperature, sulphur source, concentration of reactants and presence of water, on the morphological, structural and microstructural, optical and photocatalytic properties of the synthesised nanoparticles is analysed and discussed. Stable and crystalline BiOCl hybrid structures with shapes from sheet-like to flower-like hierarchical aggregates and (001) and (110) dominant crystallographic orientation were obtained. The sensitisation of BiOCl with Bi2S3 was successfully achieved in situ during synthesis by an ion-exchange process and the relative proportion of the components (BiOCl and Bi2S3) was controlled by the Bi : S ratio in the synthesis medium and by the sulphur precursor. The sensitiser nanomaterial (Bi2S3) extends the BiOCl photoactive region to the visible range. Also it favours charge separation and reducing the electron/hole pair recombination and therefore increasing the photocatalytic performance. The prepared composite materials show high ability to adsorb rhodamine B cationic dye and the complete photocatalytic degradation was achieved within 45 min (75 mg per g of catalyst). |
publishDate |
2016 |
dc.date.none.fl_str_mv |
2016-01-01T00:00:00Z 2016 2017-12-07T19:05:42Z |
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/10773/19237 |
url |
http://hdl.handle.net/10773/19237 |
dc.language.iso.fl_str_mv |
eng |
language |
eng |
dc.relation.none.fl_str_mv |
2046-2069 10.1039/c6ra14474h |
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.publisher.none.fl_str_mv |
ROYAL SOC CHEMISTRY |
publisher.none.fl_str_mv |
ROYAL SOC CHEMISTRY |
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 |
|
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1799137592448385024 |