Tailored zeolites for the removal of metal oxyanions : overcoming intrinsic limitations of zeolites
Autor(a) principal: | |
---|---|
Data de Publicação: | 2014 |
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/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 |