Obtaining cellulose nanocrystals from pineapple crown fibers by free-chlorite hydrolysis with sulfuric acid: physical, chemical and structural characterization
Autor(a) principal: | |
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Data de Publicação: | 2020 |
Outros Autores: | , , , |
Tipo de documento: | Artigo |
Idioma: | eng |
Título da fonte: | Repositório Institucional da UNESP |
Texto Completo: | http://dx.doi.org/10.1007/s10570-020-03179-6 http://hdl.handle.net/11449/201781 |
Resumo: | Brazil is the second-largest world producer of pineapple and generates almost 45% of its initial mass in wastes after industrialization, mainly due to the inappropriate deposition of peel and crown, which contribute to environmental damage. In this study, pineapple crown fibers (PCF) residues were investigated as an essential alternative to produce cellulose nanocrystals (CNC). It was used a free-chlorite hydrolysis reaction combined with sulfuric acid using different times and acid concentrations to obtain CNC after obtaining of the bleached cellulose. CNC`s were characterized by zeta potential, TGA, XRD, FTIR, and TEM. The main results showed that the chemical treatments were efficient in the removal of amorphous components, increasing the fiber whiteness and the crystallinity index. The best result obtained was for a concentration of 64% of H2SO4 for two hours with values of particle size of c.a. 140 nm and Zeta potential of − 47.96 mV, validating the use of the PCF for CNC. |
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Repositório Institucional da UNESP |
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Obtaining cellulose nanocrystals from pineapple crown fibers by free-chlorite hydrolysis with sulfuric acid: physical, chemical and structural characterizationCellulose nanocrystalsHydrolysis acidPineapple crown fibersSulfuric acidBrazil is the second-largest world producer of pineapple and generates almost 45% of its initial mass in wastes after industrialization, mainly due to the inappropriate deposition of peel and crown, which contribute to environmental damage. In this study, pineapple crown fibers (PCF) residues were investigated as an essential alternative to produce cellulose nanocrystals (CNC). It was used a free-chlorite hydrolysis reaction combined with sulfuric acid using different times and acid concentrations to obtain CNC after obtaining of the bleached cellulose. CNC`s were characterized by zeta potential, TGA, XRD, FTIR, and TEM. The main results showed that the chemical treatments were efficient in the removal of amorphous components, increasing the fiber whiteness and the crystallinity index. The best result obtained was for a concentration of 64% of H2SO4 for two hours with values of particle size of c.a. 140 nm and Zeta potential of − 47.96 mV, validating the use of the PCF for CNC.Fundação de Amparo à Pesquisa do Estado de São Paulo (FAPESP)Department of Materials and Technology State University of São Paulo-UNESPLOMC CNRS ULH Normandie UniversityDepartment of Materials and Technology State University of São Paulo-UNESPFAPESP: Process n 2015/10389-9Universidade Estadual Paulista (Unesp)Normandie UniversityPereira, Paulo Henrique Fernandes [UNESP]Ornaghi Júnior, Heitor Luiz [UNESP]Coutinho, Luana Venâncio [UNESP]Duchemin, BenoitCioffi, Maria Odila Hilário [UNESP]2020-12-12T02:41:39Z2020-12-12T02:41:39Z2020-07-01info:eu-repo/semantics/publishedVersioninfo:eu-repo/semantics/article5745-5756http://dx.doi.org/10.1007/s10570-020-03179-6Cellulose, v. 27, n. 10, p. 5745-5756, 2020.1572-882X0969-0239http://hdl.handle.net/11449/20178110.1007/s10570-020-03179-62-s2.0-85085077521Scopusreponame:Repositório Institucional da UNESPinstname:Universidade Estadual Paulista (UNESP)instacron:UNESPengCelluloseinfo:eu-repo/semantics/openAccess2021-10-22T21:54:38Zoai:repositorio.unesp.br:11449/201781Repositório InstitucionalPUBhttp://repositorio.unesp.br/oai/requestopendoar:29462021-10-22T21:54:38Repositório Institucional da UNESP - Universidade Estadual Paulista (UNESP)false |
dc.title.none.fl_str_mv |
Obtaining cellulose nanocrystals from pineapple crown fibers by free-chlorite hydrolysis with sulfuric acid: physical, chemical and structural characterization |
title |
Obtaining cellulose nanocrystals from pineapple crown fibers by free-chlorite hydrolysis with sulfuric acid: physical, chemical and structural characterization |
spellingShingle |
Obtaining cellulose nanocrystals from pineapple crown fibers by free-chlorite hydrolysis with sulfuric acid: physical, chemical and structural characterization Pereira, Paulo Henrique Fernandes [UNESP] Cellulose nanocrystals Hydrolysis acid Pineapple crown fibers Sulfuric acid |
title_short |
Obtaining cellulose nanocrystals from pineapple crown fibers by free-chlorite hydrolysis with sulfuric acid: physical, chemical and structural characterization |
title_full |
Obtaining cellulose nanocrystals from pineapple crown fibers by free-chlorite hydrolysis with sulfuric acid: physical, chemical and structural characterization |
title_fullStr |
Obtaining cellulose nanocrystals from pineapple crown fibers by free-chlorite hydrolysis with sulfuric acid: physical, chemical and structural characterization |
title_full_unstemmed |
Obtaining cellulose nanocrystals from pineapple crown fibers by free-chlorite hydrolysis with sulfuric acid: physical, chemical and structural characterization |
title_sort |
Obtaining cellulose nanocrystals from pineapple crown fibers by free-chlorite hydrolysis with sulfuric acid: physical, chemical and structural characterization |
author |
Pereira, Paulo Henrique Fernandes [UNESP] |
author_facet |
Pereira, Paulo Henrique Fernandes [UNESP] Ornaghi Júnior, Heitor Luiz [UNESP] Coutinho, Luana Venâncio [UNESP] Duchemin, Benoit Cioffi, Maria Odila Hilário [UNESP] |
author_role |
author |
author2 |
Ornaghi Júnior, Heitor Luiz [UNESP] Coutinho, Luana Venâncio [UNESP] Duchemin, Benoit Cioffi, Maria Odila Hilário [UNESP] |
author2_role |
author author author author |
dc.contributor.none.fl_str_mv |
Universidade Estadual Paulista (Unesp) Normandie University |
dc.contributor.author.fl_str_mv |
Pereira, Paulo Henrique Fernandes [UNESP] Ornaghi Júnior, Heitor Luiz [UNESP] Coutinho, Luana Venâncio [UNESP] Duchemin, Benoit Cioffi, Maria Odila Hilário [UNESP] |
dc.subject.por.fl_str_mv |
Cellulose nanocrystals Hydrolysis acid Pineapple crown fibers Sulfuric acid |
topic |
Cellulose nanocrystals Hydrolysis acid Pineapple crown fibers Sulfuric acid |
description |
Brazil is the second-largest world producer of pineapple and generates almost 45% of its initial mass in wastes after industrialization, mainly due to the inappropriate deposition of peel and crown, which contribute to environmental damage. In this study, pineapple crown fibers (PCF) residues were investigated as an essential alternative to produce cellulose nanocrystals (CNC). It was used a free-chlorite hydrolysis reaction combined with sulfuric acid using different times and acid concentrations to obtain CNC after obtaining of the bleached cellulose. CNC`s were characterized by zeta potential, TGA, XRD, FTIR, and TEM. The main results showed that the chemical treatments were efficient in the removal of amorphous components, increasing the fiber whiteness and the crystallinity index. The best result obtained was for a concentration of 64% of H2SO4 for two hours with values of particle size of c.a. 140 nm and Zeta potential of − 47.96 mV, validating the use of the PCF for CNC. |
publishDate |
2020 |
dc.date.none.fl_str_mv |
2020-12-12T02:41:39Z 2020-12-12T02:41:39Z 2020-07-01 |
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://dx.doi.org/10.1007/s10570-020-03179-6 Cellulose, v. 27, n. 10, p. 5745-5756, 2020. 1572-882X 0969-0239 http://hdl.handle.net/11449/201781 10.1007/s10570-020-03179-6 2-s2.0-85085077521 |
url |
http://dx.doi.org/10.1007/s10570-020-03179-6 http://hdl.handle.net/11449/201781 |
identifier_str_mv |
Cellulose, v. 27, n. 10, p. 5745-5756, 2020. 1572-882X 0969-0239 10.1007/s10570-020-03179-6 2-s2.0-85085077521 |
dc.language.iso.fl_str_mv |
eng |
language |
eng |
dc.relation.none.fl_str_mv |
Cellulose |
dc.rights.driver.fl_str_mv |
info:eu-repo/semantics/openAccess |
eu_rights_str_mv |
openAccess |
dc.format.none.fl_str_mv |
5745-5756 |
dc.source.none.fl_str_mv |
Scopus reponame:Repositório Institucional da UNESP instname:Universidade Estadual Paulista (UNESP) instacron:UNESP |
instname_str |
Universidade Estadual Paulista (UNESP) |
instacron_str |
UNESP |
institution |
UNESP |
reponame_str |
Repositório Institucional da UNESP |
collection |
Repositório Institucional da UNESP |
repository.name.fl_str_mv |
Repositório Institucional da UNESP - Universidade Estadual Paulista (UNESP) |
repository.mail.fl_str_mv |
|
_version_ |
1803045990342590464 |