Superparamagnetic Fe<sub>3</sub>O<sub>4</sub>@CA Nanoparticles and Their Potential as Draw Solution Agents in Forward Osmosis

Superparamagnetic Fe<sub>3</sub>O<sub>4</sub>@CA Nanoparticles and Their Potential as Draw Solution Agents in Forward Osmosis

In this study, citric acid (CA)-coated magnetite Fe<sub>3</sub>O<sub>4</sub> magnetic nanoparticles (Fe<sub>3</sub>O<sub>4</sub>@CA MNPs) for use as draw solution (DS) agents in forward osmosis (FO) were synthesized by co-precipitation and characterize...

Descripción completa

Guardado en:
Detalles Bibliográficos
Autores principales: Irena Petrinic, Janja Stergar, Hermina Bukšek, Miha Drofenik, Sašo Gyergyek, Claus Hélix-Nielsen, Irena Ban
Formato: article
Lenguaje:EN
Publicado: MDPI AG 2021
Materias:
citrate-coated magnetic nanoparticle
forward osmosis
draw solution
osmotic pressure
non-ideality analysis
Chemistry
QD1-999
Acceso en línea:https://doaj.org/article/a4069bf8b9f1404eaec64f0c917a4daa
Etiquetas: Agregar Etiqueta
Sin Etiquetas, Sea el primero en etiquetar este registro!
id oai:doaj.org-article:a4069bf8b9f1404eaec64f0c917a4daa
record_format dspace
spelling oai:doaj.org-article:a4069bf8b9f1404eaec64f0c917a4daa2021-11-25T18:31:13ZSuperparamagnetic Fe<sub>3</sub>O<sub>4</sub>@CA Nanoparticles and Their Potential as Draw Solution Agents in Forward Osmosis10.3390/nano111129652079-4991https://doaj.org/article/a4069bf8b9f1404eaec64f0c917a4daa2021-11-01T00:00:00Zhttps://www.mdpi.com/2079-4991/11/11/2965https://doaj.org/toc/2079-4991In this study, citric acid (CA)-coated magnetite Fe<sub>3</sub>O<sub>4</sub> magnetic nanoparticles (Fe<sub>3</sub>O<sub>4</sub>@CA MNPs) for use as draw solution (DS) agents in forward osmosis (FO) were synthesized by co-precipitation and characterized by Fourier transform infrared spectroscopy (FTIR), thermogravimetric analysis (TGA), dynamic light scattering (DLS), transmission electron microscopy (TEM) and magnetic measurements. Prepared 3.7% <i>w</i>/<i>w</i> colloidal solutions of Fe<sub>3</sub>O<sub>4</sub>@CA MNPs exhibited an osmotic pressure of 18.7 bar after purification without aggregation and a sufficient magnetization of 44 emu/g to allow DS regeneration by an external magnetic field. Fe<sub>3</sub>O<sub>4</sub>@CA suspensions were used as DS in FO cross-flow filtration with deionized (DI) water as FS and with the active layer of the FO membrane facing the FS and NaCl as a reference DS. The same transmembrane bulk osmotic pressure resulted in different water fluxes for NaCl and MNPs, respectively. Thus the initial water flux with Fe<sub>3</sub>O<sub>4</sub>@CA was 9.2 LMH whereas for 0.45 M NaCl as DS it was 14.1 LMH. The reverse solute flux was 0.08 GMH for Fe<sub>3</sub>O<sub>4</sub>@CA and 2.5 GMH for NaCl. These differences are ascribed to a more pronounced internal dilutive concentration polarization with Fe<sub>3</sub>O<sub>4</sub>@CA as DS compared to NaCl as DS. This research demonstrated that the proposed Fe<sub>3</sub>O<sub>4</sub>@CA can be used as a potential low reverse solute flux DS for FO processes.Irena PetrinicJanja StergarHermina BukšekMiha DrofenikSašo GyergyekClaus Hélix-NielsenIrena BanMDPI AGarticlecitrate-coated magnetic nanoparticleforward osmosisdraw solutionosmotic pressurenon-ideality analysisChemistryQD1-999ENNanomaterials, Vol 11, Iss 2965, p 2965 (2021)
institution DOAJ
collection DOAJ
language EN
topic citrate-coated magnetic nanoparticle
forward osmosis
draw solution
osmotic pressure
non-ideality analysis
Chemistry
QD1-999
spellingShingle citrate-coated magnetic nanoparticle
forward osmosis
draw solution
osmotic pressure
non-ideality analysis
Chemistry
QD1-999
Irena Petrinic
Janja Stergar
Hermina Bukšek
Miha Drofenik
Sašo Gyergyek
Claus Hélix-Nielsen
Irena Ban
Superparamagnetic Fe<sub>3</sub>O<sub>4</sub>@CA Nanoparticles and Their Potential as Draw Solution Agents in Forward Osmosis
description In this study, citric acid (CA)-coated magnetite Fe<sub>3</sub>O<sub>4</sub> magnetic nanoparticles (Fe<sub>3</sub>O<sub>4</sub>@CA MNPs) for use as draw solution (DS) agents in forward osmosis (FO) were synthesized by co-precipitation and characterized by Fourier transform infrared spectroscopy (FTIR), thermogravimetric analysis (TGA), dynamic light scattering (DLS), transmission electron microscopy (TEM) and magnetic measurements. Prepared 3.7% <i>w</i>/<i>w</i> colloidal solutions of Fe<sub>3</sub>O<sub>4</sub>@CA MNPs exhibited an osmotic pressure of 18.7 bar after purification without aggregation and a sufficient magnetization of 44 emu/g to allow DS regeneration by an external magnetic field. Fe<sub>3</sub>O<sub>4</sub>@CA suspensions were used as DS in FO cross-flow filtration with deionized (DI) water as FS and with the active layer of the FO membrane facing the FS and NaCl as a reference DS. The same transmembrane bulk osmotic pressure resulted in different water fluxes for NaCl and MNPs, respectively. Thus the initial water flux with Fe<sub>3</sub>O<sub>4</sub>@CA was 9.2 LMH whereas for 0.45 M NaCl as DS it was 14.1 LMH. The reverse solute flux was 0.08 GMH for Fe<sub>3</sub>O<sub>4</sub>@CA and 2.5 GMH for NaCl. These differences are ascribed to a more pronounced internal dilutive concentration polarization with Fe<sub>3</sub>O<sub>4</sub>@CA as DS compared to NaCl as DS. This research demonstrated that the proposed Fe<sub>3</sub>O<sub>4</sub>@CA can be used as a potential low reverse solute flux DS for FO processes.
format article
author Irena Petrinic
Janja Stergar
Hermina Bukšek
Miha Drofenik
Sašo Gyergyek
Claus Hélix-Nielsen
Irena Ban
author_facet Irena Petrinic
Janja Stergar
Hermina Bukšek
Miha Drofenik
Sašo Gyergyek
Claus Hélix-Nielsen
Irena Ban
author_sort Irena Petrinic
title Superparamagnetic Fe<sub>3</sub>O<sub>4</sub>@CA Nanoparticles and Their Potential as Draw Solution Agents in Forward Osmosis
title_short Superparamagnetic Fe<sub>3</sub>O<sub>4</sub>@CA Nanoparticles and Their Potential as Draw Solution Agents in Forward Osmosis
title_full Superparamagnetic Fe<sub>3</sub>O<sub>4</sub>@CA Nanoparticles and Their Potential as Draw Solution Agents in Forward Osmosis
title_fullStr Superparamagnetic Fe<sub>3</sub>O<sub>4</sub>@CA Nanoparticles and Their Potential as Draw Solution Agents in Forward Osmosis
title_full_unstemmed Superparamagnetic Fe<sub>3</sub>O<sub>4</sub>@CA Nanoparticles and Their Potential as Draw Solution Agents in Forward Osmosis
title_sort superparamagnetic fe<sub>3</sub>o<sub>4</sub>@ca nanoparticles and their potential as draw solution agents in forward osmosis
publisher MDPI AG
publishDate 2021
url https://doaj.org/article/a4069bf8b9f1404eaec64f0c917a4daa
work_keys_str_mv AT irenapetrinic superparamagneticfesub3subosub4subcananoparticlesandtheirpotentialasdrawsolutionagentsinforwardosmosis
AT janjastergar superparamagneticfesub3subosub4subcananoparticlesandtheirpotentialasdrawsolutionagentsinforwardosmosis
AT herminabuksek superparamagneticfesub3subosub4subcananoparticlesandtheirpotentialasdrawsolutionagentsinforwardosmosis
AT mihadrofenik superparamagneticfesub3subosub4subcananoparticlesandtheirpotentialasdrawsolutionagentsinforwardosmosis
AT sasogyergyek superparamagneticfesub3subosub4subcananoparticlesandtheirpotentialasdrawsolutionagentsinforwardosmosis
AT claushelixnielsen superparamagneticfesub3subosub4subcananoparticlesandtheirpotentialasdrawsolutionagentsinforwardosmosis
AT irenaban superparamagneticfesub3subosub4subcananoparticlesandtheirpotentialasdrawsolutionagentsinforwardosmosis
_version_ 1718411036320595968

Ejemplares similares