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Development of electrospun photocatalytic TiO2-polyamide-12 nanocomposites

Journal Article


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Abstract


  • Titanium dioxide (TiO2) in different forms such as films, fibers or particles are being extensively studied

    for removal of contaminants from aquatic environments due to its outstanding photocatalytic activity.

    This work reports the development of TiO2-polyamide 12 electrospun fiber mats. A systematic study on

    the influence of electrospun processing parameters on polymer fiber morphology was performed. It was

    observed that the average fiber diameter is mainly influenced by polymer concentration and average

    fiber diameters between 404 ± 82 nm and 1442 ± 360 nm were obtained. Polyamide-12 (PA-12) was

    used as a polymer matrix and electrospun with 0, 10 and 20 wt% of TiO2. It was observed that the filler

    does not change the average fiber diameter, being similar to that observed for neat PA-12 fibers processed

    under the same experimental conditions. The TiO2 were particles dispensed not only in the bulk

    of the polymeric matrix but also on the surface of the fibers, especially for the samples with higher filler

    contents. Neat and nanocomposite electrospun samples show a hydrophobic behavior and a degree of

    crystallinity of ~25%.

    The photocatalytic performance of the processed samples was measured by following the degradation

    capability of a chosen dye, methylene blue (MB). Results show that the nanocomposite samples have a

    remarkable photocatalytic activity, especially the one with a higher load of TiO2 particles (20 wt%), with

    all MB being removed from the solution after 100 min.

UOW Authors


  •   Cossich, E (external author)
  •   Bergamasco, R (external author)
  •   Pessoa De Amorim, M T. (external author)
  •   Martins, P (external author)
  •   Marques, J (external author)
  •   Tavares, Carlos J. (external author)
  •   Lanceros-Méndez, Senentxu (external author)
  •   Gomes da Silva Sencadas, Vitor

Publication Date


  • 2015

Citation


  • Cossich, E., Bergamasco, R., Pessoa De Amorim, M. T., Martins, P. M., Marques, J., Tavares, C. J., Lanceros-Méndez, S. & Sencadas, V. (2015). Development of electrospun photocatalytic TiO2-polyamide-12 nanocomposites. Materials Chemistry and Physics, 164 91-97.

Scopus Eid


  • 2-s2.0-84941357004

Ro Full-text Url


  • http://ro.uow.edu.au/cgi/viewcontent.cgi?article=6279&context=eispapers

Ro Metadata Url


  • http://ro.uow.edu.au/eispapers/5252

Number Of Pages


  • 6

Start Page


  • 91

End Page


  • 97

Volume


  • 164

Abstract


  • Titanium dioxide (TiO2) in different forms such as films, fibers or particles are being extensively studied

    for removal of contaminants from aquatic environments due to its outstanding photocatalytic activity.

    This work reports the development of TiO2-polyamide 12 electrospun fiber mats. A systematic study on

    the influence of electrospun processing parameters on polymer fiber morphology was performed. It was

    observed that the average fiber diameter is mainly influenced by polymer concentration and average

    fiber diameters between 404 ± 82 nm and 1442 ± 360 nm were obtained. Polyamide-12 (PA-12) was

    used as a polymer matrix and electrospun with 0, 10 and 20 wt% of TiO2. It was observed that the filler

    does not change the average fiber diameter, being similar to that observed for neat PA-12 fibers processed

    under the same experimental conditions. The TiO2 were particles dispensed not only in the bulk

    of the polymeric matrix but also on the surface of the fibers, especially for the samples with higher filler

    contents. Neat and nanocomposite electrospun samples show a hydrophobic behavior and a degree of

    crystallinity of ~25%.

    The photocatalytic performance of the processed samples was measured by following the degradation

    capability of a chosen dye, methylene blue (MB). Results show that the nanocomposite samples have a

    remarkable photocatalytic activity, especially the one with a higher load of TiO2 particles (20 wt%), with

    all MB being removed from the solution after 100 min.

UOW Authors


  •   Cossich, E (external author)
  •   Bergamasco, R (external author)
  •   Pessoa De Amorim, M T. (external author)
  •   Martins, P (external author)
  •   Marques, J (external author)
  •   Tavares, Carlos J. (external author)
  •   Lanceros-Méndez, Senentxu (external author)
  •   Gomes da Silva Sencadas, Vitor

Publication Date


  • 2015

Citation


  • Cossich, E., Bergamasco, R., Pessoa De Amorim, M. T., Martins, P. M., Marques, J., Tavares, C. J., Lanceros-Méndez, S. & Sencadas, V. (2015). Development of electrospun photocatalytic TiO2-polyamide-12 nanocomposites. Materials Chemistry and Physics, 164 91-97.

Scopus Eid


  • 2-s2.0-84941357004

Ro Full-text Url


  • http://ro.uow.edu.au/cgi/viewcontent.cgi?article=6279&context=eispapers

Ro Metadata Url


  • http://ro.uow.edu.au/eispapers/5252

Number Of Pages


  • 6

Start Page


  • 91

End Page


  • 97

Volume


  • 164