Tailored zeolites for the removal of metal oxyanions : overcoming intrinsic limitations of zeolites

Detalhes bibliográficos
Autor(a) principal: Figueiredo, Hugo
Data de Publicação: 2014
Outros Autores: Quintelas, C.
Tipo de documento: Artigo
Idioma: eng
Título da fonte: Repositório Científico de Acesso Aberto de Portugal (Repositórios Cientìficos)
Texto Completo: http://hdl.handle.net/1822/31468
Resumo: This review aims to present a global view of the efforts conducted to convert zeolites into efficient supports for the removal of heavy metal oxyanions. Despite lacking affinity for these species, due to inherent charge repulsion between zeolite framework and anionic species, zeolites have still received considerable attention from the scientific community, since their versatility allowed tailoring them to answer specific requirements. Different processes for the removal and recovery of toxic metals based on zeolites have been presented. These processes resort to modification of the zeolite surface to allow direct adsorption of oxyanions, or by combination with reducing agents for oxyanions that allow ion-exchange with the converted species by the zeolite itself. In order to testify zeolite versatility, as well as covering the wide array of physicochemical constraints that oxyanions offer, chromium and arsenic oxyanions were selected as model compounds for a review of treatment/remediation strategies, based on zeolite modification.
id RCAP_06cfdf4a2aa1e8470601ec6aa2113de6
oai_identifier_str oai:repositorium.sdum.uminho.pt:1822/31468
network_acronym_str RCAP
network_name_str Repositório Científico de Acesso Aberto de Portugal (Repositórios Cientìficos)
repository_id_str 7160
spelling Tailored zeolites for the removal of metal oxyanions : overcoming intrinsic limitations of zeolitesZeoliteChromiumArsenicScience & TechnologyThis review aims to present a global view of the efforts conducted to convert zeolites into efficient supports for the removal of heavy metal oxyanions. Despite lacking affinity for these species, due to inherent charge repulsion between zeolite framework and anionic species, zeolites have still received considerable attention from the scientific community, since their versatility allowed tailoring them to answer specific requirements. Different processes for the removal and recovery of toxic metals based on zeolites have been presented. These processes resort to modification of the zeolite surface to allow direct adsorption of oxyanions, or by combination with reducing agents for oxyanions that allow ion-exchange with the converted species by the zeolite itself. In order to testify zeolite versatility, as well as covering the wide array of physicochemical constraints that oxyanions offer, chromium and arsenic oxyanions were selected as model compounds for a review of treatment/remediation strategies, based on zeolite modification.Cristina Quintelas is thankful to Fundacao para a Ciencia e Tecnologia (FCT, Portugal) for funding the CEB researcher unit at the University of Minho and thanks the Project "BioInd - Biotechnology and Bioengineering for improved Industrial and Agro-Food processes, REF. NORTE-07-0124-FEDER-000028" Co-funded by the Programa Operacional Regional do Norte (ON.2-O Novo Norte), QREN, FEDER for her reseach grant. Hugo Figueiredo would like to express his gratitude to FCT, Portugal, for the concession of his former PhD grant (ref. SFRH/BD/28201/2006). Cristina Quintelas would like to express her gratitude to FCT, Portugal, for the concession of her former PhD and Post-Doc grants (SFRH/BD/8646/2002 and SFRH/BPD/32113/2006, respectively). Authors are also thankful to Drs Isabel Neves and Teresa Tavares for their former supervision.Elsevier B.V.Universidade do MinhoFigueiredo, HugoQuintelas, C.20142014-01-01T00:00:00Zinfo:eu-repo/semantics/publishedVersioninfo:eu-repo/semantics/articleapplication/pdfhttp://hdl.handle.net/1822/31468engFigueiredo, Hugo; Quintelas, C., Tailored zeolites for the removal of metal oxyanions: Overcoming intrinsic limitations of zeolites. Journal of Hazardous Materials, 274, 287-299, 20140304-389410.1016/j.jhazmat.2014.04.01224794984info: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:RCAAP2023-07-21T12:15:21Zoai:repositorium.sdum.uminho.pt:1822/31468Portal AgregadorONGhttps://www.rcaap.pt/oai/openaireopendoar:71602024-03-19T19:07:46.464731Repositório 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 Tailored zeolites for the removal of metal oxyanions : overcoming intrinsic limitations of zeolites
title Tailored zeolites for the removal of metal oxyanions : overcoming intrinsic limitations of zeolites
spellingShingle Tailored zeolites for the removal of metal oxyanions : overcoming intrinsic limitations of zeolites
Figueiredo, Hugo
Zeolite
Chromium
Arsenic
Science & Technology
title_short Tailored zeolites for the removal of metal oxyanions : overcoming intrinsic limitations of zeolites
title_full Tailored zeolites for the removal of metal oxyanions : overcoming intrinsic limitations of zeolites
title_fullStr Tailored zeolites for the removal of metal oxyanions : overcoming intrinsic limitations of zeolites
title_full_unstemmed Tailored zeolites for the removal of metal oxyanions : overcoming intrinsic limitations of zeolites
title_sort Tailored zeolites for the removal of metal oxyanions : overcoming intrinsic limitations of zeolites
author Figueiredo, Hugo
author_facet Figueiredo, Hugo
Quintelas, C.
author_role author
author2 Quintelas, C.
author2_role author
dc.contributor.none.fl_str_mv Universidade do Minho
dc.contributor.author.fl_str_mv Figueiredo, Hugo
Quintelas, C.
dc.subject.por.fl_str_mv Zeolite
Chromium
Arsenic
Science & Technology
topic Zeolite
Chromium
Arsenic
Science & Technology
description This review aims to present a global view of the efforts conducted to convert zeolites into efficient supports for the removal of heavy metal oxyanions. Despite lacking affinity for these species, due to inherent charge repulsion between zeolite framework and anionic species, zeolites have still received considerable attention from the scientific community, since their versatility allowed tailoring them to answer specific requirements. Different processes for the removal and recovery of toxic metals based on zeolites have been presented. These processes resort to modification of the zeolite surface to allow direct adsorption of oxyanions, or by combination with reducing agents for oxyanions that allow ion-exchange with the converted species by the zeolite itself. In order to testify zeolite versatility, as well as covering the wide array of physicochemical constraints that oxyanions offer, chromium and arsenic oxyanions were selected as model compounds for a review of treatment/remediation strategies, based on zeolite modification.
publishDate 2014
dc.date.none.fl_str_mv 2014
2014-01-01T00:00:00Z
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/1822/31468
url http://hdl.handle.net/1822/31468
dc.language.iso.fl_str_mv eng
language eng
dc.relation.none.fl_str_mv Figueiredo, Hugo; Quintelas, C., Tailored zeolites for the removal of metal oxyanions: Overcoming intrinsic limitations of zeolites. Journal of Hazardous Materials, 274, 287-299, 2014
0304-3894
10.1016/j.jhazmat.2014.04.012
24794984
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 Elsevier B.V.
publisher.none.fl_str_mv Elsevier B.V.
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_ 1799132497300160512

Registros relacionados