A ternary eutectic solvent for cellulose nanocrystal production: exploring the recyclability and pre-pilot scale-up

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dc.catalogadorgrr
dc.contributor.authorMariño, Mayra A.
dc.contributor.authorParedes Gutierrez, Maria Gabriela
dc.contributor.authorMartinez Ahumada, Natalia del Pilar
dc.contributor.authorMillan, Daniela
dc.contributor.authorTapia, Ricardo A.
dc.contributor.authorRuiz, Domingo
dc.contributor.authorIsaacs Casanova, Mauricio Alejandro
dc.contributor.authorPavez Guerrero, Paulina Isabel
dc.date.accessioned2023-09-04T19:03:29Z
dc.date.available2023-09-04T19:03:29Z
dc.date.issued2023
dc.description.abstractDeep eutectic solvents (DES) formed using choline chloride (ChCl), p-toluenesulfonic acid (pTSA) of stoichiometry ChCl: pTSA (1:1) and (1:2), and its ternary eutectic mixtures with phosphoric acid (PA) 85% as an additive (ChCl: pTSA: PA) were evaluated for cellulose nanocrystal (CNC) isolation. Initially, the hydrolytic efficiency to produce CNC of each DES was compared before and after adding phosphoric acid by Hammett acidity parameters and the Gutmann acceptor number. Moreover, different DES molar ratios and reaction time were studied at 80°C for CNC optimization. The nanomaterial characteristics were analyzed by field emission scanning electron microscopy (FESEM), X-ray diffraction (XRD), Fourier-transform infrared spectroscopy (FTIR), and thermogravimetric analysis (TGA). The ternary eutectic mixture ChCl: pTSA: PA molar ratio (1:1:1.35) was chosen as a suitable recyclable ternary system at the laboratory scale. A CNC yield of about 80% was obtained from the hydrolysis of commercial cellulose in five cycles of recovery, but it dropped to 35% in pre-pilot scaling. However, no variation in the average size of the resulting CNC was observed (132 ± 50 nm x 23 ± 4 nm), which presented high thermal stability (Tmax 362°C) and high crystallinity of about 80% after 3 h of reaction time.
dc.fechaingreso.objetodigital2023-09-04
dc.fuente.origenORCID
dc.identifier.doi10.3389/fchem.2023.1233889
dc.identifier.eissn2296-2646
dc.identifier.urihttp://dx.doi.org/10.3389/fchem.2023.1233889
dc.identifier.urihttps://repositorio.uc.cl/handle/11534/74580
dc.information.autorucEscuela de Química; Martinez Ahumada, Natalia Del Pilar; 0000-0002-2119-2481; 237610
dc.information.autorucEscuela de Química; Isaacs Casanova, Mauricio Alejandro; 0000-0003-0503-0949; 1009751
dc.information.autorucEscuela de Química; Pavez Guerrero, Paulina Isabel; 0000-0002-8891-3802; 7091
dc.language.isoen
dc.nota.accesoContenido completo
dc.pagina.final12
dc.pagina.inicio1
dc.revistaFrontiers in Chemistry
dc.rightsacceso abierto
dc.rights.licenseAtribución 4.0 Internacional (CC BY 4.0)
dc.rights.urihttps://creativecommons.org/licenses/by/4.0/deed.es
dc.subject.ddc510
dc.subject.deweyMatemática física y químicaes_ES
dc.titleA ternary eutectic solvent for cellulose nanocrystal production: exploring the recyclability and pre-pilot scale-up
dc.typeartículo
dc.volumen11
sipa.codpersvinculados237610
sipa.codpersvinculados1009751
sipa.codpersvinculados7091
sipa.trazabilidadORCID;2023-09-04
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