The role of biomass elemental composition and ion-exchange in metal sorption by algae
Autor(a) principal: | |
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Data de Publicação: | 2023 |
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/10773/36265 |
Resumo: | The use of macroalgae, microalgae and cyanobacteria for metal sorption has been widely reported. Still, there are no studies allowing a direct comparison of the performance of these biomasses, especially while evaluating metal competition. The simultaneous sorption of Co2+, Cu2+, Ni2+ and Zn2+ present in a multi-elemental solution by six macroalgae, two microalgae and three cyanobacteria was evaluated. Brown macroalgae were shown to be the most promising biosorbent, with Undaria pinnatifida having a total metal sorption capacity of 0.6 mmol g-1. Overall, macroalgae performed better than microalgae, followed by cyanobacteria. Carboxyl groups were identified as being the main functional groups involved in metal sorption, and all biomass samples were found to be selective to Cu2+. This was linked not only to its higher complexation constant value with relevant functional groups when compared to the remaining metals, but also the Irving-Williams series. The release of K+ and Ca2+ to the aqueous solution during the metal sorption was followed. The obtained results suggest they are readily exchanged with metals in the solution, indicating the occurrence of an ion-exchange mechanism in metal sorption by most biomass. Red macroalgae are an exception to the reported trends, suggesting that their metal sorption mechanism may differ from the other biomass types. |
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The role of biomass elemental composition and ion-exchange in metal sorption by algaeMacroalgaeMicroalgaeCyanobacteriaScreeningSorption mechanismMetal recoveryThe use of macroalgae, microalgae and cyanobacteria for metal sorption has been widely reported. Still, there are no studies allowing a direct comparison of the performance of these biomasses, especially while evaluating metal competition. The simultaneous sorption of Co2+, Cu2+, Ni2+ and Zn2+ present in a multi-elemental solution by six macroalgae, two microalgae and three cyanobacteria was evaluated. Brown macroalgae were shown to be the most promising biosorbent, with Undaria pinnatifida having a total metal sorption capacity of 0.6 mmol g-1. Overall, macroalgae performed better than microalgae, followed by cyanobacteria. Carboxyl groups were identified as being the main functional groups involved in metal sorption, and all biomass samples were found to be selective to Cu2+. This was linked not only to its higher complexation constant value with relevant functional groups when compared to the remaining metals, but also the Irving-Williams series. The release of K+ and Ca2+ to the aqueous solution during the metal sorption was followed. The obtained results suggest they are readily exchanged with metals in the solution, indicating the occurrence of an ion-exchange mechanism in metal sorption by most biomass. Red macroalgae are an exception to the reported trends, suggesting that their metal sorption mechanism may differ from the other biomass types.Elsevier2023-02-09T09:51:25Z2023-02-01T00:00:00Z2023-02info:eu-repo/semantics/publishedVersioninfo:eu-repo/semantics/articleapplication/pdfapplication/vnd.openxmlformats-officedocument.wordprocessingml.documenthttp://hdl.handle.net/10773/36265eng0045-653510.1016/j.chemosphere.2022.137675Carreira, Ana R. F.Veloso, TelmaMacário, Inês P. E.Pereira, Joana L.Ventura, Sónia P. M.Passos, HelenaCoutinho, João A. P.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:RCAAP2024-02-22T12:10:04Zoai:ria.ua.pt:10773/36265Portal AgregadorONGhttps://www.rcaap.pt/oai/openaireopendoar:71602024-03-20T03:07:11.083110Repositório 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 |
The role of biomass elemental composition and ion-exchange in metal sorption by algae |
title |
The role of biomass elemental composition and ion-exchange in metal sorption by algae |
spellingShingle |
The role of biomass elemental composition and ion-exchange in metal sorption by algae Carreira, Ana R. F. Macroalgae Microalgae Cyanobacteria Screening Sorption mechanism Metal recovery |
title_short |
The role of biomass elemental composition and ion-exchange in metal sorption by algae |
title_full |
The role of biomass elemental composition and ion-exchange in metal sorption by algae |
title_fullStr |
The role of biomass elemental composition and ion-exchange in metal sorption by algae |
title_full_unstemmed |
The role of biomass elemental composition and ion-exchange in metal sorption by algae |
title_sort |
The role of biomass elemental composition and ion-exchange in metal sorption by algae |
author |
Carreira, Ana R. F. |
author_facet |
Carreira, Ana R. F. Veloso, Telma Macário, Inês P. E. Pereira, Joana L. Ventura, Sónia P. M. Passos, Helena Coutinho, João A. P. |
author_role |
author |
author2 |
Veloso, Telma Macário, Inês P. E. Pereira, Joana L. Ventura, Sónia P. M. Passos, Helena Coutinho, João A. P. |
author2_role |
author author author author author author |
dc.contributor.author.fl_str_mv |
Carreira, Ana R. F. Veloso, Telma Macário, Inês P. E. Pereira, Joana L. Ventura, Sónia P. M. Passos, Helena Coutinho, João A. P. |
dc.subject.por.fl_str_mv |
Macroalgae Microalgae Cyanobacteria Screening Sorption mechanism Metal recovery |
topic |
Macroalgae Microalgae Cyanobacteria Screening Sorption mechanism Metal recovery |
description |
The use of macroalgae, microalgae and cyanobacteria for metal sorption has been widely reported. Still, there are no studies allowing a direct comparison of the performance of these biomasses, especially while evaluating metal competition. The simultaneous sorption of Co2+, Cu2+, Ni2+ and Zn2+ present in a multi-elemental solution by six macroalgae, two microalgae and three cyanobacteria was evaluated. Brown macroalgae were shown to be the most promising biosorbent, with Undaria pinnatifida having a total metal sorption capacity of 0.6 mmol g-1. Overall, macroalgae performed better than microalgae, followed by cyanobacteria. Carboxyl groups were identified as being the main functional groups involved in metal sorption, and all biomass samples were found to be selective to Cu2+. This was linked not only to its higher complexation constant value with relevant functional groups when compared to the remaining metals, but also the Irving-Williams series. The release of K+ and Ca2+ to the aqueous solution during the metal sorption was followed. The obtained results suggest they are readily exchanged with metals in the solution, indicating the occurrence of an ion-exchange mechanism in metal sorption by most biomass. Red macroalgae are an exception to the reported trends, suggesting that their metal sorption mechanism may differ from the other biomass types. |
publishDate |
2023 |
dc.date.none.fl_str_mv |
2023-02-09T09:51:25Z 2023-02-01T00:00:00Z 2023-02 |
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/10773/36265 |
url |
http://hdl.handle.net/10773/36265 |
dc.language.iso.fl_str_mv |
eng |
language |
eng |
dc.relation.none.fl_str_mv |
0045-6535 10.1016/j.chemosphere.2022.137675 |
dc.rights.driver.fl_str_mv |
info:eu-repo/semantics/openAccess |
eu_rights_str_mv |
openAccess |
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application/pdf application/vnd.openxmlformats-officedocument.wordprocessingml.document |
dc.publisher.none.fl_str_mv |
Elsevier |
publisher.none.fl_str_mv |
Elsevier |
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reponame:Repositório Científico de Acesso Aberto de Portugal (Repositórios Cientìficos) instname:Agência para a Sociedade do Conhecimento (UMIC) - FCT - Sociedade da Informação instacron:RCAAP |
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Agência para a Sociedade do Conhecimento (UMIC) - FCT - Sociedade da Informação |
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RCAAP |
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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 |
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1799137727281627136 |