Semi-continuous production of iron oxide nanoparticles via membrane emulsification

Maria Medina-Llamas; Davide Mattia

doi:10.1016/j.apsusc.2018.08.257

Semi-continuous production of iron oxide nanoparticles via membrane emulsification

Maria Medina-Llamas, Davide Mattia

Department of Chemical Engineering

Research output: Contribution to journal › Article › peer-review

8 Citations (SciVal)

147 Downloads (Pure)

Abstract

The large-scale production of nanomaterials with fine control over their shape, size and properties remains a major obstacle towards their further use. Here, the semi-continuous production of metal oxide nanoparticles (NPs) via membrane emulsification (ME) is reported for the first time, using an oil-in-water emulsion and a commercial stirred ME setup fitted with a novel ring-shaped anodic alumina membrane (AAM). A systematic investigation of process parameters showed that the narrow pore size distribution of AAMs resulted in a narrow size distribution of both droplets and particles, with D_droplet/D_pore as small as 2.8, compared to typical literature values of 10 or more. The average particle size was 4.2 ± 0.5 nm and 18 ± 4 nm for the as-synthetized and calcined NPs, respectively. Calculations of the emulsion production rate demonstrate the potential of the ME setup to produce up to 1 kg of NP per hour per metre squared of membrane.

Original language	English
Pages (from-to)	504-512
Number of pages	9
Journal	Applied Surface Science
Volume	463
Early online date	30 Aug 2018
DOIs	https://doi.org/10.1016/j.apsusc.2018.08.257
Publication status	Published - 1 Jan 2019

Funding

The authors express their gratitude to the Mexican National Council for Science and Technology (CONACYT) for the doctoral scholarship granted to M.M.-L. D.M. expressed his gratitude to the UK Royal Academy of Engineering for funding via a Research Fellowship. XPS data collection was performed at the EPSRC National Facility for XPS (‘HarwellXPS’), operated by Cardiff University and UCL, under contract No. PR16195. All data created during this research are openly available from the University of Bath data archive at https://doi.org/10.15125/BATH-00544 . Appendix A

Keywords

Anodic alumina membrane
Hematite
Membrane emulsification
Nanoemulsions
Nanoparticles

ASJC Scopus subject areas

Surfaces, Coatings and Films

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10.1016/j.apsusc.2018.08.257

Fe_NP_ME_pure.PDFAccepted author manuscript, 984 KBLicence: CC BY-NC-ND

Cite this

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title = "Semi-continuous production of iron oxide nanoparticles via membrane emulsification",

abstract = "The large-scale production of nanomaterials with fine control over their shape, size and properties remains a major obstacle towards their further use. Here, the semi-continuous production of metal oxide nanoparticles (NPs) via membrane emulsification (ME) is reported for the first time, using an oil-in-water emulsion and a commercial stirred ME setup fitted with a novel ring-shaped anodic alumina membrane (AAM). A systematic investigation of process parameters showed that the narrow pore size distribution of AAMs resulted in a narrow size distribution of both droplets and particles, with Ddroplet/Dpore as small as 2.8, compared to typical literature values of 10 or more. The average particle size was 4.2 ± 0.5 nm and 18 ± 4 nm for the as-synthetized and calcined NPs, respectively. Calculations of the emulsion production rate demonstrate the potential of the ME setup to produce up to 1 kg of NP per hour per metre squared of membrane.",

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AU - Mattia, Davide

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N2 - The large-scale production of nanomaterials with fine control over their shape, size and properties remains a major obstacle towards their further use. Here, the semi-continuous production of metal oxide nanoparticles (NPs) via membrane emulsification (ME) is reported for the first time, using an oil-in-water emulsion and a commercial stirred ME setup fitted with a novel ring-shaped anodic alumina membrane (AAM). A systematic investigation of process parameters showed that the narrow pore size distribution of AAMs resulted in a narrow size distribution of both droplets and particles, with Ddroplet/Dpore as small as 2.8, compared to typical literature values of 10 or more. The average particle size was 4.2 ± 0.5 nm and 18 ± 4 nm for the as-synthetized and calcined NPs, respectively. Calculations of the emulsion production rate demonstrate the potential of the ME setup to produce up to 1 kg of NP per hour per metre squared of membrane.

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KW - Anodic alumina membrane

KW - Hematite

KW - Membrane emulsification

KW - Nanoemulsions

KW - Nanoparticles

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Semi-continuous production of iron oxide nanoparticles via membrane emulsification

Abstract

Funding

Keywords

ASJC Scopus subject areas

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Semi-continuous production of iron oxide nanoparticles via membrane emulsification

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Funding

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Davide Mattia

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