Core-shell molecularly imprinted polymers on magnetic yeast for the removal of sulfamethoxazole from water
Autor(a) principal: | |
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Data de Publicação: | 2020 |
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/10773/29270 |
Resumo: | In this work, magnetic yeast (MY) was produced through an in situ one-step method. Then, MY was used as the core and the antibiotic sulfamethoxazole (SMX) as the template to produce highly selective magnetic yeast-molecularly imprinted polymers (MY@MIPs). The physicochemical properties of MY@MIPs were assessed by Fourier-transform infrared spectroscopy (FT-IR), a vibrating sample magnetometer (VSM), X-ray diffraction (XRD), thermogravimetric analysis (TGA), specific surface area (SBET) determination, and scanning electron microscopy (SEM). Batch adsorption experiments were carried out to compare MY@MIPs with MY and MY@NIPs (magnetic yeast-molecularly imprinted polymers without template), with MY@MIPs showing a better performance in the removal of SMX from water. Adsorption of SMX onto MY@MIPs was described by the pseudo-second-order kinetic model and the Langmuir isotherm, with maximum adsorption capacities of 77 and 24 mg g-1 from ultrapure and wastewater, respectively. Furthermore, MY@MIPs displayed a highly selective adsorption toward SMX in the presence of other pharmaceuticals, namely diclofenac (DCF) and carbamazepine (CBZ). Finally, regeneration experiments showed that SMX adsorption decreased 21 and 34% after the first and second regeneration cycles, respectively. This work demonstrates that MY@MIPs are promising sorbent materials for the selective removal of SMX from wastewater. |
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Core-shell molecularly imprinted polymers on magnetic yeast for the removal of sulfamethoxazole from waterAntibioticsEmerging contaminantsPharmaceuticalsWastewater treatmentPolymeric adsorbentsMagnetizationIn this work, magnetic yeast (MY) was produced through an in situ one-step method. Then, MY was used as the core and the antibiotic sulfamethoxazole (SMX) as the template to produce highly selective magnetic yeast-molecularly imprinted polymers (MY@MIPs). The physicochemical properties of MY@MIPs were assessed by Fourier-transform infrared spectroscopy (FT-IR), a vibrating sample magnetometer (VSM), X-ray diffraction (XRD), thermogravimetric analysis (TGA), specific surface area (SBET) determination, and scanning electron microscopy (SEM). Batch adsorption experiments were carried out to compare MY@MIPs with MY and MY@NIPs (magnetic yeast-molecularly imprinted polymers without template), with MY@MIPs showing a better performance in the removal of SMX from water. Adsorption of SMX onto MY@MIPs was described by the pseudo-second-order kinetic model and the Langmuir isotherm, with maximum adsorption capacities of 77 and 24 mg g-1 from ultrapure and wastewater, respectively. Furthermore, MY@MIPs displayed a highly selective adsorption toward SMX in the presence of other pharmaceuticals, namely diclofenac (DCF) and carbamazepine (CBZ). Finally, regeneration experiments showed that SMX adsorption decreased 21 and 34% after the first and second regeneration cycles, respectively. This work demonstrates that MY@MIPs are promising sorbent materials for the selective removal of SMX from wastewater.MDPI2020-09-18T17:06:13Z2020-06-01T00:00:00Z2020-06info:eu-repo/semantics/publishedVersioninfo:eu-repo/semantics/articleapplication/pdfhttp://hdl.handle.net/10773/29270eng2073-436010.3390/polym12061385Liang QiuJaria, GuilaineGil, María VictoriaJundong FengYaodong DaiEsteves, Valdemar I.Otero, MartaCalisto, 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:RCAAP2024-02-22T11:56:37Zoai:ria.ua.pt:10773/29270Portal AgregadorONGhttps://www.rcaap.pt/oai/openaireopendoar:71602024-03-20T03:01:38.704756Repositório 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 |
Core-shell molecularly imprinted polymers on magnetic yeast for the removal of sulfamethoxazole from water |
title |
Core-shell molecularly imprinted polymers on magnetic yeast for the removal of sulfamethoxazole from water |
spellingShingle |
Core-shell molecularly imprinted polymers on magnetic yeast for the removal of sulfamethoxazole from water Liang Qiu Antibiotics Emerging contaminants Pharmaceuticals Wastewater treatment Polymeric adsorbents Magnetization |
title_short |
Core-shell molecularly imprinted polymers on magnetic yeast for the removal of sulfamethoxazole from water |
title_full |
Core-shell molecularly imprinted polymers on magnetic yeast for the removal of sulfamethoxazole from water |
title_fullStr |
Core-shell molecularly imprinted polymers on magnetic yeast for the removal of sulfamethoxazole from water |
title_full_unstemmed |
Core-shell molecularly imprinted polymers on magnetic yeast for the removal of sulfamethoxazole from water |
title_sort |
Core-shell molecularly imprinted polymers on magnetic yeast for the removal of sulfamethoxazole from water |
author |
Liang Qiu |
author_facet |
Liang Qiu Jaria, Guilaine Gil, María Victoria Jundong Feng Yaodong Dai Esteves, Valdemar I. Otero, Marta Calisto, Vânia |
author_role |
author |
author2 |
Jaria, Guilaine Gil, María Victoria Jundong Feng Yaodong Dai Esteves, Valdemar I. Otero, Marta Calisto, Vânia |
author2_role |
author author author author author author author |
dc.contributor.author.fl_str_mv |
Liang Qiu Jaria, Guilaine Gil, María Victoria Jundong Feng Yaodong Dai Esteves, Valdemar I. Otero, Marta Calisto, Vânia |
dc.subject.por.fl_str_mv |
Antibiotics Emerging contaminants Pharmaceuticals Wastewater treatment Polymeric adsorbents Magnetization |
topic |
Antibiotics Emerging contaminants Pharmaceuticals Wastewater treatment Polymeric adsorbents Magnetization |
description |
In this work, magnetic yeast (MY) was produced through an in situ one-step method. Then, MY was used as the core and the antibiotic sulfamethoxazole (SMX) as the template to produce highly selective magnetic yeast-molecularly imprinted polymers (MY@MIPs). The physicochemical properties of MY@MIPs were assessed by Fourier-transform infrared spectroscopy (FT-IR), a vibrating sample magnetometer (VSM), X-ray diffraction (XRD), thermogravimetric analysis (TGA), specific surface area (SBET) determination, and scanning electron microscopy (SEM). Batch adsorption experiments were carried out to compare MY@MIPs with MY and MY@NIPs (magnetic yeast-molecularly imprinted polymers without template), with MY@MIPs showing a better performance in the removal of SMX from water. Adsorption of SMX onto MY@MIPs was described by the pseudo-second-order kinetic model and the Langmuir isotherm, with maximum adsorption capacities of 77 and 24 mg g-1 from ultrapure and wastewater, respectively. Furthermore, MY@MIPs displayed a highly selective adsorption toward SMX in the presence of other pharmaceuticals, namely diclofenac (DCF) and carbamazepine (CBZ). Finally, regeneration experiments showed that SMX adsorption decreased 21 and 34% after the first and second regeneration cycles, respectively. This work demonstrates that MY@MIPs are promising sorbent materials for the selective removal of SMX from wastewater. |
publishDate |
2020 |
dc.date.none.fl_str_mv |
2020-09-18T17:06:13Z 2020-06-01T00:00:00Z 2020-06 |
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/10773/29270 |
url |
http://hdl.handle.net/10773/29270 |
dc.language.iso.fl_str_mv |
eng |
language |
eng |
dc.relation.none.fl_str_mv |
2073-4360 10.3390/polym12061385 |
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 |
MDPI |
publisher.none.fl_str_mv |
MDPI |
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 |
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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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1799137671887454208 |