Single-molecule magnets as novel fillers with superior dispersibility – First application of a tetranuclear iron(III) molecular magnet [Fe4(acac)6(Br-mp)2] for pervaporative dehydration of ethanol

Łukasz Jakubski; Paweł Grzybek; Artur Chrobak; Emile Haye; Jean François Colomer; Krystyna Konieczny; Roman Turczyn; Gabriela Dudek

doi:10.1016/j.seppur.2021.119038

Single-molecule magnets as novel fillers with superior dispersibility – First application of a tetranuclear iron(III) molecular magnet [Fe₄(acac)₆(Br-mp)₂] for pervaporative dehydration of ethanol

Łukasz Jakubski, Paweł Grzybek, Artur Chrobak, Emile Haye, Jean François Colomer, Krystyna Konieczny, Roman Turczyn, Gabriela Dudek

Universite de Namur

Résultats de recherche: Contribution à un journal/une revue › Article › Revue par des pairs

Résumé

To improve the process of ethanol dehydration via pervaporation, a molecular magnet [Fe₄(acac)₆(Br-mp)₂] was synthesized and applied as a filler for hybrid alginate membranes and compared with membranes loaded with magnetite and Prussian blue. Synthesized powders and membranes were comprehensively characterized by means of FTIR spectroscopy, contact angle, degree of swelling, electron microscopy and magnetometry, to provide an extensive analysis of their physicochemical and magnetic properties. The results showed a strong correlation between filler properties and separation effectiveness, particularly flux. Consequently, the highest value of flux (25.46 kg∙m⁻²∙h⁻¹) was achieved by an alginate membrane filled with magnetite. On the other hand, the value of separation factor was found to be the most beneficial in the case of membranes loaded with Prussian blue and a molecular magnet, which was associated with the hydrophilicity of the fillers, their compatibility and good distribution in a polymer matrix. Therefore, the most favourable results were obtained for alginate membranes containing 12 and 15 wt% of [Fe₄(acac)₆(Br-mp)₂], where pervaporation separation index reached the value of 1261 and 1275 kg∙m⁻²∙h⁻¹, respectively.

langue originale	Anglais
Numéro d'article	119038
journal	Separation and purification Technology
Volume	277
Date de mise en ligne précoce	29 mai 2021
Les DOIs	https://doi.org/10.1016/j.seppur.2021.119038
Etat de la publication	Publié - 15 déc. 2021

Accès au document

10.1016/j.seppur.2021.119038

Autres fichiers et liens

Lien vers la publication sur Scopus

Empreinte digitale

Examiner les sujets de recherche de « Single-molecule magnets as novel fillers with superior dispersibility – First application of a tetranuclear iron(III) molecular magnet [Fe₄(acac)₆(Br-mp)₂] for pervaporative dehydration of ethanol ». Ensemble, ils forment une empreinte digitale unique.

Morphologie - Imagerie
Charles Nicaise (!!Manager) & Francesca Cecchet (!!Manager)
Plateforme technologique Morphologie, imagerie
Equipement/installations: Plateforme technolgique

Contient cette citation

Jakubski, Ł., Grzybek, P., Chrobak, A., Haye, E., Colomer, J. F., Konieczny, K., Turczyn, R., & Dudek, G. (2021). Single-molecule magnets as novel fillers with superior dispersibility – First application of a tetranuclear iron(III) molecular magnet [Fe₄(acac)₆(Br-mp)₂] for pervaporative dehydration of ethanol. Separation and purification Technology, 277, [119038]. https://doi.org/10.1016/j.seppur.2021.119038

@article{3b4941e9df3c4cdd9e2a18e612ccf437,

title = "Single-molecule magnets as novel fillers with superior dispersibility – First application of a tetranuclear iron(III) molecular magnet [Fe4(acac)6(Br-mp)2] for pervaporative dehydration of ethanol",

abstract = "To improve the process of ethanol dehydration via pervaporation, a molecular magnet [Fe4(acac)6(Br-mp)2] was synthesized and applied as a filler for hybrid alginate membranes and compared with membranes loaded with magnetite and Prussian blue. Synthesized powders and membranes were comprehensively characterized by means of FTIR spectroscopy, contact angle, degree of swelling, electron microscopy and magnetometry, to provide an extensive analysis of their physicochemical and magnetic properties. The results showed a strong correlation between filler properties and separation effectiveness, particularly flux. Consequently, the highest value of flux (25.46 kg∙m−2∙h−1) was achieved by an alginate membrane filled with magnetite. On the other hand, the value of separation factor was found to be the most beneficial in the case of membranes loaded with Prussian blue and a molecular magnet, which was associated with the hydrophilicity of the fillers, their compatibility and good distribution in a polymer matrix. Therefore, the most favourable results were obtained for alginate membranes containing 12 and 15 wt% of [Fe4(acac)6(Br-mp)2], where pervaporation separation index reached the value of 1261 and 1275 kg∙m−2∙h−1, respectively.",

keywords = "Ethanol dehydration, Hybrid membrane, Magnetite, Pervaporation, Prussian blue, Single-molecule magnet, Sodium alginate",

author = "{\L}ukasz Jakubski and Pawe{\l} Grzybek and Artur Chrobak and Emile Haye and Colomer, {Jean Fran{\c c}ois} and Krystyna Konieczny and Roman Turczyn and Gabriela Dudek",

note = "Funding Information: G.D. & R.T. would like to thank the Silesian University of Technology for the partial financial support under the projects no 04/040/BK_21/0145 and G.D. would like to thanks The National Centre for Research and Development and Silesian University of Technology for providing partial financial support under the project no 2018/02/X/ST8/00309 and 04/040/RGJ21/0150, respectively. JFC is a Senior Research associate of the National Funds for Scientific Research (FRS-FNRS, Belgium). Publisher Copyright: {\textcopyright} 2021 Elsevier B.V.",

year = "2021",

month = dec,

day = "15",

doi = "10.1016/j.seppur.2021.119038",

language = "English",

volume = "277",

journal = "Separation and purification Technology",

issn = "1383-5866",

publisher = "Elsevier",

}

Jakubski, Ł, Grzybek, P, Chrobak, A, Haye, E , Colomer, JF, Konieczny, K, Turczyn, R & Dudek, G 2021, 'Single-molecule magnets as novel fillers with superior dispersibility – First application of a tetranuclear iron(III) molecular magnet [Fe₄(acac)₆(Br-mp)₂] for pervaporative dehydration of ethanol', Separation and purification Technology, VOL. 277, 119038. https://doi.org/10.1016/j.seppur.2021.119038

Single-molecule magnets as novel fillers with superior dispersibility – First application of a tetranuclear iron(III) molecular magnet [Fe₄(acac)₆(Br-mp)₂] for pervaporative dehydration of ethanol. / Jakubski, Łukasz; Grzybek, Paweł; Chrobak, Artur et al.

Dans: Separation and purification Technology, Vol 277, 119038, 15.12.2021.

Résultats de recherche: Contribution à un journal/une revue › Article › Revue par des pairs

TY - JOUR

T1 - Single-molecule magnets as novel fillers with superior dispersibility – First application of a tetranuclear iron(III) molecular magnet [Fe4(acac)6(Br-mp)2] for pervaporative dehydration of ethanol

AU - Jakubski, Łukasz

AU - Grzybek, Paweł

AU - Chrobak, Artur

AU - Haye, Emile

AU - Colomer, Jean François

AU - Konieczny, Krystyna

AU - Turczyn, Roman

AU - Dudek, Gabriela

N1 - Funding Information: G.D. & R.T. would like to thank the Silesian University of Technology for the partial financial support under the projects no 04/040/BK_21/0145 and G.D. would like to thanks The National Centre for Research and Development and Silesian University of Technology for providing partial financial support under the project no 2018/02/X/ST8/00309 and 04/040/RGJ21/0150, respectively. JFC is a Senior Research associate of the National Funds for Scientific Research (FRS-FNRS, Belgium). Publisher Copyright: © 2021 Elsevier B.V.

PY - 2021/12/15

Y1 - 2021/12/15

N2 - To improve the process of ethanol dehydration via pervaporation, a molecular magnet [Fe4(acac)6(Br-mp)2] was synthesized and applied as a filler for hybrid alginate membranes and compared with membranes loaded with magnetite and Prussian blue. Synthesized powders and membranes were comprehensively characterized by means of FTIR spectroscopy, contact angle, degree of swelling, electron microscopy and magnetometry, to provide an extensive analysis of their physicochemical and magnetic properties. The results showed a strong correlation between filler properties and separation effectiveness, particularly flux. Consequently, the highest value of flux (25.46 kg∙m−2∙h−1) was achieved by an alginate membrane filled with magnetite. On the other hand, the value of separation factor was found to be the most beneficial in the case of membranes loaded with Prussian blue and a molecular magnet, which was associated with the hydrophilicity of the fillers, their compatibility and good distribution in a polymer matrix. Therefore, the most favourable results were obtained for alginate membranes containing 12 and 15 wt% of [Fe4(acac)6(Br-mp)2], where pervaporation separation index reached the value of 1261 and 1275 kg∙m−2∙h−1, respectively.

AB - To improve the process of ethanol dehydration via pervaporation, a molecular magnet [Fe4(acac)6(Br-mp)2] was synthesized and applied as a filler for hybrid alginate membranes and compared with membranes loaded with magnetite and Prussian blue. Synthesized powders and membranes were comprehensively characterized by means of FTIR spectroscopy, contact angle, degree of swelling, electron microscopy and magnetometry, to provide an extensive analysis of their physicochemical and magnetic properties. The results showed a strong correlation between filler properties and separation effectiveness, particularly flux. Consequently, the highest value of flux (25.46 kg∙m−2∙h−1) was achieved by an alginate membrane filled with magnetite. On the other hand, the value of separation factor was found to be the most beneficial in the case of membranes loaded with Prussian blue and a molecular magnet, which was associated with the hydrophilicity of the fillers, their compatibility and good distribution in a polymer matrix. Therefore, the most favourable results were obtained for alginate membranes containing 12 and 15 wt% of [Fe4(acac)6(Br-mp)2], where pervaporation separation index reached the value of 1261 and 1275 kg∙m−2∙h−1, respectively.

KW - Ethanol dehydration

KW - Hybrid membrane

KW - Magnetite

KW - Pervaporation

KW - Prussian blue

KW - Single-molecule magnet

KW - Sodium alginate

UR - http://www.scopus.com/inward/record.url?scp=85112799322&partnerID=8YFLogxK

U2 - 10.1016/j.seppur.2021.119038

DO - 10.1016/j.seppur.2021.119038

M3 - Article

AN - SCOPUS:85112799322

SN - 1383-5866

VL - 277

JO - Separation and purification Technology

JF - Separation and purification Technology

M1 - 119038

ER -

Jakubski Ł, Grzybek P, Chrobak A, Haye E , Colomer JF, Konieczny K et al. Single-molecule magnets as novel fillers with superior dispersibility – First application of a tetranuclear iron(III) molecular magnet [Fe₄(acac)₆(Br-mp)₂] for pervaporative dehydration of ethanol. Separation and purification Technology. 2021 déc. 15;277:119038. Epub 2021 mai 29. doi: 10.1016/j.seppur.2021.119038