Continuous production of metal oxide nanoparticles via membrane emulsification-precipitation

Maria Medina-Llamas; Caitlin M. Taylor; Jing Ji; Jannis Wenk; Davide Mattia

doi:10.1021/acs.iecr.0c00603

Continuous production of metal oxide nanoparticles via membrane emulsification-precipitation

Maria Medina-Llamas, Caitlin M. Taylor, Jing Ji, Jannis Wenk, Davide Mattia

Department of Chemical Engineering

University of Bath

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

10 Citations (SciVal)

Abstract

A continuous and scalable method to produce metal oxide nanoparticles (NPs) with control of both particle size and composition via membrane emulsification (ME) is reported for the first time using an oil-in-water emulsion and a tubular ceramic membrane (Dpore = 100 nm). Using titania (TiO2) NPs as a model material, a systematic investigation of different process parameters allowed minimizing the emulsion droplet size, yielding a low droplet diameter to membrane pore diameter ratio of less than 3, compared to literature values of up to 10. After calcination, TiO2 NPs as small as 10 ± 2 nm were obtained. The particles' composition was changed via nonmetal doping, with the incorporation of interstitial nitrogen and carbon in the TiO2 lattice, confirmed by Fourier transform infrared (FT-IR) and X-ray photoelectron spectroscopy (XPS). The TiO2 NPs showed to be active for the photocatalytic degradation of phenol under both UV and visible light. Productivity calculations showed that it is possible to obtain ∼2 kg of NPs per hour per meter square of the membrane, opening the way to the large-scale production of NPs with fine control over their size and composition.

Original language	English
Pages (from-to)	9085-9094
Number of pages	10
Journal	Industrial and Engineering Chemistry Research
Volume	59
Issue number	19
Early online date	21 Apr 2020
DOIs	https://doi.org/10.1021/acs.iecr.0c00603
Publication status	Published - 13 May 2020

Bibliographical note

Funding Information:
M.M.-L. expresses her gratitude to the Mexican National Council for Science and Technology (CONACYT) for a doctoral scholarship. C.M.T. was supported by an EPSRC-funded Centre for Doctoral Training integrated Ph.D. studentship (EP/L016354/1). D.M. acknowledges support from EPSRC (EP/P031382/1). 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 archived at: https://doi.org/10.15125/BATH-00795 .

Publisher Copyright:
© 2020 American Chemical Society.

Copyright:
Copyright 2020 Elsevier B.V., All rights reserved.

ASJC Scopus subject areas

General Chemistry
General Chemical Engineering
Industrial and Manufacturing Engineering

Access to Document

10.1021/acs.iecr.0c00603

Cite this

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abstract = "A continuous and scalable method to produce metal oxide nanoparticles (NPs) with control of both particle size and composition via membrane emulsification (ME) is reported for the first time using an oil-in-water emulsion and a tubular ceramic membrane (Dpore = 100 nm). Using titania (TiO2) NPs as a model material, a systematic investigation of different process parameters allowed minimizing the emulsion droplet size, yielding a low droplet diameter to membrane pore diameter ratio of less than 3, compared to literature values of up to 10. After calcination, TiO2 NPs as small as 10 ± 2 nm were obtained. The particles' composition was changed via nonmetal doping, with the incorporation of interstitial nitrogen and carbon in the TiO2 lattice, confirmed by Fourier transform infrared (FT-IR) and X-ray photoelectron spectroscopy (XPS). The TiO2 NPs showed to be active for the photocatalytic degradation of phenol under both UV and visible light. Productivity calculations showed that it is possible to obtain ∼2 kg of NPs per hour per meter square of the membrane, opening the way to the large-scale production of NPs with fine control over their size and composition.",

author = "Maria Medina-Llamas and Taylor, {Caitlin M.} and Jing Ji and Jannis Wenk and Davide Mattia",

note = "Funding Information: M.M.-L. expresses her gratitude to the Mexican National Council for Science and Technology (CONACYT) for a doctoral scholarship. C.M.T. was supported by an EPSRC-funded Centre for Doctoral Training integrated Ph.D. studentship (EP/L016354/1). D.M. acknowledges support from EPSRC (EP/P031382/1). 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 archived at: https://doi.org/10.15125/BATH-00795 . Publisher Copyright: {\textcopyright} 2020 American Chemical Society. Copyright: Copyright 2020 Elsevier B.V., All rights reserved.",

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AU - Mattia, Davide

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N2 - A continuous and scalable method to produce metal oxide nanoparticles (NPs) with control of both particle size and composition via membrane emulsification (ME) is reported for the first time using an oil-in-water emulsion and a tubular ceramic membrane (Dpore = 100 nm). Using titania (TiO2) NPs as a model material, a systematic investigation of different process parameters allowed minimizing the emulsion droplet size, yielding a low droplet diameter to membrane pore diameter ratio of less than 3, compared to literature values of up to 10. After calcination, TiO2 NPs as small as 10 ± 2 nm were obtained. The particles' composition was changed via nonmetal doping, with the incorporation of interstitial nitrogen and carbon in the TiO2 lattice, confirmed by Fourier transform infrared (FT-IR) and X-ray photoelectron spectroscopy (XPS). The TiO2 NPs showed to be active for the photocatalytic degradation of phenol under both UV and visible light. Productivity calculations showed that it is possible to obtain ∼2 kg of NPs per hour per meter square of the membrane, opening the way to the large-scale production of NPs with fine control over their size and composition.

AB - A continuous and scalable method to produce metal oxide nanoparticles (NPs) with control of both particle size and composition via membrane emulsification (ME) is reported for the first time using an oil-in-water emulsion and a tubular ceramic membrane (Dpore = 100 nm). Using titania (TiO2) NPs as a model material, a systematic investigation of different process parameters allowed minimizing the emulsion droplet size, yielding a low droplet diameter to membrane pore diameter ratio of less than 3, compared to literature values of up to 10. After calcination, TiO2 NPs as small as 10 ± 2 nm were obtained. The particles' composition was changed via nonmetal doping, with the incorporation of interstitial nitrogen and carbon in the TiO2 lattice, confirmed by Fourier transform infrared (FT-IR) and X-ray photoelectron spectroscopy (XPS). The TiO2 NPs showed to be active for the photocatalytic degradation of phenol under both UV and visible light. Productivity calculations showed that it is possible to obtain ∼2 kg of NPs per hour per meter square of the membrane, opening the way to the large-scale production of NPs with fine control over their size and composition.

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Continuous production of metal oxide nanoparticles via membrane emulsification-precipitation

Abstract

Bibliographical note

ASJC Scopus subject areas

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Fellowship - Photocatalytic Anodic Membranes for Micropollutant Removal

Dataset for "Continuous Production of Metal Oxide Nanoparticles via Membrane Emulsification−Precipitation"

Optical Contact Angle

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Continuous production of metal oxide nanoparticles via membrane emulsification-precipitation

Abstract

Bibliographical note

ASJC Scopus subject areas

Access to Document

Other files and links

Fingerprint

Projects

Fellowship - Photocatalytic Anodic Membranes for Micropollutant Removal

Datasets

Dataset for "Continuous Production of Metal Oxide Nanoparticles via Membrane Emulsification−Precipitation"

Equipment

Optical Contact Angle

Cite this