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.
| Language | English |
|---|---|
| Pages | 504-512 |
| Number of pages | 9 |
| Journal | Applied Surface Science |
| Volume | 463 |
| Early online date | 30 Aug 2018 |
| DOIs | |
| Status | Published - 1 Jan 2019 |
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Keywords
- Anodic alumina membrane
- Hematite
- Membrane emulsification
- Nanoemulsions
- Nanoparticles
ASJC Scopus subject areas
- Surfaces, Coatings and Films
Cite this
Semi-continuous production of iron oxide nanoparticles via membrane emulsification. / Medina-Llamas, Maria; Mattia, Davide.
In: Applied Surface Science, Vol. 463, 01.01.2019, p. 504-512.Research output: Contribution to journal › Article
}
TY - JOUR
T1 - Semi-continuous production of iron oxide nanoparticles via membrane emulsification
AU - Medina-Llamas, Maria
AU - Mattia, Davide
PY - 2019/1/1
Y1 - 2019/1/1
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.
AB - 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.
KW - Anodic alumina membrane
KW - Hematite
KW - Membrane emulsification
KW - Nanoemulsions
KW - Nanoparticles
UR - http://www.scopus.com/inward/record.url?scp=85052663327&partnerID=8YFLogxK
U2 - 10.1016/j.apsusc.2018.08.257
DO - 10.1016/j.apsusc.2018.08.257
M3 - Article
VL - 463
SP - 504
EP - 512
JO - Applied Surface Science
T2 - Applied Surface Science
JF - Applied Surface Science
SN - 0169-4332
ER -