Skip to main content
Top
Published in: Cellulose 8/2021

21-03-2021 | Original Research

Magnetically induced demulsification of water and castor oil dispersions stabilized by Fe3O4-coated cellulose nanocrystals

Authors: Mohammad J. Hasan, Frankie A. Petrie, Ashley E. Johnson, Joshua Peltan, Meredith Gannon, Robert T. Busch, Serhiy O. Leontsev, Erick S. Vasquez, Esteban E. Urena-Benavides

Published in: Cellulose | Issue 8/2021

Log in

Activate our intelligent search to find suitable subject content or patents.

search-config
loading …

Abstract

Superparamagnetic iron oxide (Fe3O4) nanoparticle (NP) coated cellulose nanocrystals (CNCs) were synthesized and used to prepare emulsions with magnetically controlled stability. Magnetite NPs were deposited onto the surface of wood pulp CNCs (WCNCs) and bacterial CNCs (BCNCs) by a one-step coprecipitation method. The effect of the CNC to Fe3O4 mass ratio (1:1, 1:2, and 1:4) was varied to optimize the colloidal, magnetic and emulsifying properties of the hybrid NPs. TEM images showed that the 1:4 ratios lead to greater coverage of Fe3O4 than lower Fe3O4 loadings (1:1, and 1:2). The CNCs and Fe3O4 appeared to interact via hydrogen bonding between the hydroxyl groups on the surfaces of both particles. The hybrid NPs had high saturation magnetizations of 56 emu/g for WCNC/Fe3O4 (1:4) and 60 emu/g for BCNC/Fe3O4 (1:4). In addition, they were efficient stabilizers for castor oil and water emulsions. The magnetite lowered the colloidal stability of the CNCs while providing superparamagnetic properties which allowed stabilization of Pickering emulsions and the subsequent depletion of the Pickering effect by an external magnet. Water-in-oil emulsions, with oil contents of 70% and 90% V/V, were broken by an external magnet, while the CNC/ Fe3O4 NPs were recovered and recycled. The 30% and 50% V/V oil emulsions were oil-in-water and could not be broken by the magnet, probably due to higher emulsion stability. The fabricated magnetic CNCs have potential use in magnetically driven separations, drug delivery, and oil recovery.

Graphic abstract

Dont have a licence yet? Then find out more about our products and how to get one now:

Springer Professional "Technik"

Online-Abonnement

Mit Springer Professional "Technik" erhalten Sie Zugriff auf:

  • über 67.000 Bücher
  • über 390 Zeitschriften

aus folgenden Fachgebieten:

  • Automobil + Motoren
  • Bauwesen + Immobilien
  • Business IT + Informatik
  • Elektrotechnik + Elektronik
  • Energie + Nachhaltigkeit
  • Maschinenbau + Werkstoffe




 

Jetzt Wissensvorsprung sichern!

Springer Professional "Wirtschaft+Technik"

Online-Abonnement

Mit Springer Professional "Wirtschaft+Technik" erhalten Sie Zugriff auf:

  • über 102.000 Bücher
  • über 537 Zeitschriften

aus folgenden Fachgebieten:

  • Automobil + Motoren
  • Bauwesen + Immobilien
  • Business IT + Informatik
  • Elektrotechnik + Elektronik
  • Energie + Nachhaltigkeit
  • Finance + Banking
  • Management + Führung
  • Marketing + Vertrieb
  • Maschinenbau + Werkstoffe
  • Versicherung + Risiko

Jetzt Wissensvorsprung sichern!

Appendix
Available only for authorised users
Literature
go back to reference Barnes G, Gentle I (2011) Interfacial science: an introduction. OUP Oxford, Oxford Barnes G, Gentle I (2011) Interfacial science: an introduction. OUP Oxford, Oxford
go back to reference Berg JC (2010) An introduction to interfaces and colloids: the bridge to nanoscience. World Scientific, Singapore Berg JC (2010) An introduction to interfaces and colloids: the bridge to nanoscience. World Scientific, Singapore
go back to reference Dong XM, Revol J-F, Gray DG (1998) Effect of microcrystallite preparation conditions on the formation of colloid crystals of cellulose. Cellulose 5:19–32CrossRef Dong XM, Revol J-F, Gray DG (1998) Effect of microcrystallite preparation conditions on the formation of colloid crystals of cellulose. Cellulose 5:19–32CrossRef
go back to reference Lopez JA, González F, Bonilla FA et al (2010) Synthesis and characterization of Fe3O4 magnetic nanofluid. Rev Latinoam de Met y Mater 30:60–66 Lopez JA, González F, Bonilla FA et al (2010) Synthesis and characterization of Fe3O4 magnetic nanofluid. Rev Latinoam de Met y Mater 30:60–66
Metadata
Title
Magnetically induced demulsification of water and castor oil dispersions stabilized by Fe3O4-coated cellulose nanocrystals
Authors
Mohammad J. Hasan
Frankie A. Petrie
Ashley E. Johnson
Joshua Peltan
Meredith Gannon
Robert T. Busch
Serhiy O. Leontsev
Erick S. Vasquez
Esteban E. Urena-Benavides
Publication date
21-03-2021
Publisher
Springer Netherlands
Published in
Cellulose / Issue 8/2021
Print ISSN: 0969-0239
Electronic ISSN: 1572-882X
DOI
https://doi.org/10.1007/s10570-021-03813-x

Other articles of this Issue 8/2021

Cellulose 8/2021 Go to the issue