Producing magnetic nanocomposites from paper sludge for the adsorptive removal of pharmaceuticals from water: a fractional factorial design

Detalhes bibliográficos
Autor(a) principal: Rocha, Luciana S.
Data de Publicação: 2021
Outros Autores: Sousa, Érika M. L., Gil, María V., Oliveira, João A. B. P., Otero, Marta, Esteves, Valdemar I., Calisto, Vânia
Tipo de documento: Artigo
Idioma: eng
Título da fonte: Repositório Científico de Acesso Aberto de Portugal (Repositórios Cientìficos)
Texto Completo: http://hdl.handle.net/10773/30461
Resumo: In view of a simple after-use separation, the potentiality of producing magnetic activated carbon (MAC) by intercalation of ferromagnetic metal oxide nanoparticles in the framework of a powder activated carbon (PAC) produced from primary paper sludge was explored in this work. The synthesis conditions to produce cost effective and efficient MACs for the adsorptive removal of pharmaceuticals (amoxicillin, carbamazepine, and diclofenac) from aqueous media were evaluated. For this purpose, a fractional factorial design (FFD) was applied to assess the effect of the most significant variables (Fe3+ to Fe2+ salts ratio, PAC to iron salts ratio, temperature, and pH), on the following responses concerning the resulting MACs: Specific surface area (SBET), saturation magnetization (Ms), and adsorption percentage of amoxicillin, carbamazepine, and diclofenac. The statistical analysis revealed that the PAC to iron salts mass ratio was the main factor affecting the considered responses. A quadratic linear regression model A = f(SBET, Ms) was adjusted to the FFD data, allowing to differentiate four of the eighteen MACs produced. These MACs were distinguished by being easily recovered from aqueous phase using a permanent magnet (Ms of 22-27 emu g-1), and their high SBET (741-795 m2 g-1) were responsible for individual adsorption percentages ranging between 61% and 84% using small MAC doses (35 mg L-1).
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spelling Producing magnetic nanocomposites from paper sludge for the adsorptive removal of pharmaceuticals from water: a fractional factorial designActivated carbonAdsorptionAquatic environmentEmerging contaminantsMicro-organic contaminantsMagnetic materialsMultivariate analysisIn view of a simple after-use separation, the potentiality of producing magnetic activated carbon (MAC) by intercalation of ferromagnetic metal oxide nanoparticles in the framework of a powder activated carbon (PAC) produced from primary paper sludge was explored in this work. The synthesis conditions to produce cost effective and efficient MACs for the adsorptive removal of pharmaceuticals (amoxicillin, carbamazepine, and diclofenac) from aqueous media were evaluated. For this purpose, a fractional factorial design (FFD) was applied to assess the effect of the most significant variables (Fe3+ to Fe2+ salts ratio, PAC to iron salts ratio, temperature, and pH), on the following responses concerning the resulting MACs: Specific surface area (SBET), saturation magnetization (Ms), and adsorption percentage of amoxicillin, carbamazepine, and diclofenac. The statistical analysis revealed that the PAC to iron salts mass ratio was the main factor affecting the considered responses. A quadratic linear regression model A = f(SBET, Ms) was adjusted to the FFD data, allowing to differentiate four of the eighteen MACs produced. These MACs were distinguished by being easily recovered from aqueous phase using a permanent magnet (Ms of 22-27 emu g-1), and their high SBET (741-795 m2 g-1) were responsible for individual adsorption percentages ranging between 61% and 84% using small MAC doses (35 mg L-1).MDPI2021-02-01T20:03:09Z2021-02-01T00:00:00Z2021-02info:eu-repo/semantics/publishedVersioninfo:eu-repo/semantics/articleapplication/pdfhttp://hdl.handle.net/10773/30461eng2079-499110.3390/nano11020287Rocha, Luciana S.Sousa, Érika M. L.Gil, María V.Oliveira, João A. B. P.Otero, MartaEsteves, Valdemar I.Calisto, Vâniainfo: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:RCAAP2024-02-22T11:58:49Zoai:ria.ua.pt:10773/30461Portal AgregadorONGhttps://www.rcaap.pt/oai/openaireopendoar:71602024-03-20T03:02:32.329074Repositório 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 Producing magnetic nanocomposites from paper sludge for the adsorptive removal of pharmaceuticals from water: a fractional factorial design
title Producing magnetic nanocomposites from paper sludge for the adsorptive removal of pharmaceuticals from water: a fractional factorial design
spellingShingle Producing magnetic nanocomposites from paper sludge for the adsorptive removal of pharmaceuticals from water: a fractional factorial design
Rocha, Luciana S.
Activated carbon
Adsorption
Aquatic environment
Emerging contaminants
Micro-organic contaminants
Magnetic materials
Multivariate analysis
title_short Producing magnetic nanocomposites from paper sludge for the adsorptive removal of pharmaceuticals from water: a fractional factorial design
title_full Producing magnetic nanocomposites from paper sludge for the adsorptive removal of pharmaceuticals from water: a fractional factorial design
title_fullStr Producing magnetic nanocomposites from paper sludge for the adsorptive removal of pharmaceuticals from water: a fractional factorial design
title_full_unstemmed Producing magnetic nanocomposites from paper sludge for the adsorptive removal of pharmaceuticals from water: a fractional factorial design
title_sort Producing magnetic nanocomposites from paper sludge for the adsorptive removal of pharmaceuticals from water: a fractional factorial design
author Rocha, Luciana S.
author_facet Rocha, Luciana S.
Sousa, Érika M. L.
Gil, María V.
Oliveira, João A. B. P.
Otero, Marta
Esteves, Valdemar I.
Calisto, Vânia
author_role author
author2 Sousa, Érika M. L.
Gil, María V.
Oliveira, João A. B. P.
Otero, Marta
Esteves, Valdemar I.
Calisto, Vânia
author2_role author
author
author
author
author
author
dc.contributor.author.fl_str_mv Rocha, Luciana S.
Sousa, Érika M. L.
Gil, María V.
Oliveira, João A. B. P.
Otero, Marta
Esteves, Valdemar I.
Calisto, Vânia
dc.subject.por.fl_str_mv Activated carbon
Adsorption
Aquatic environment
Emerging contaminants
Micro-organic contaminants
Magnetic materials
Multivariate analysis
topic Activated carbon
Adsorption
Aquatic environment
Emerging contaminants
Micro-organic contaminants
Magnetic materials
Multivariate analysis
description In view of a simple after-use separation, the potentiality of producing magnetic activated carbon (MAC) by intercalation of ferromagnetic metal oxide nanoparticles in the framework of a powder activated carbon (PAC) produced from primary paper sludge was explored in this work. The synthesis conditions to produce cost effective and efficient MACs for the adsorptive removal of pharmaceuticals (amoxicillin, carbamazepine, and diclofenac) from aqueous media were evaluated. For this purpose, a fractional factorial design (FFD) was applied to assess the effect of the most significant variables (Fe3+ to Fe2+ salts ratio, PAC to iron salts ratio, temperature, and pH), on the following responses concerning the resulting MACs: Specific surface area (SBET), saturation magnetization (Ms), and adsorption percentage of amoxicillin, carbamazepine, and diclofenac. The statistical analysis revealed that the PAC to iron salts mass ratio was the main factor affecting the considered responses. A quadratic linear regression model A = f(SBET, Ms) was adjusted to the FFD data, allowing to differentiate four of the eighteen MACs produced. These MACs were distinguished by being easily recovered from aqueous phase using a permanent magnet (Ms of 22-27 emu g-1), and their high SBET (741-795 m2 g-1) were responsible for individual adsorption percentages ranging between 61% and 84% using small MAC doses (35 mg L-1).
publishDate 2021
dc.date.none.fl_str_mv 2021-02-01T20:03:09Z
2021-02-01T00:00:00Z
2021-02
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/10773/30461
url http://hdl.handle.net/10773/30461
dc.language.iso.fl_str_mv eng
language eng
dc.relation.none.fl_str_mv 2079-4991
10.3390/nano11020287
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publisher.none.fl_str_mv MDPI
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reponame_str Repositório Científico de Acesso Aberto de Portugal (Repositórios Cientìficos)
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