Layer-by-layer structured films of TiO2 nanoparticles and poly(acrylic acid) on electrospun nanofibres

Bin Ding, Jinho Kim, Eiji Kimura, Seimei Shiratori

Research output: Contribution to journalArticle

86 Citations (Scopus)

Abstract

We report a new approach for fabricating layer-by-layer (LBL) structured ultrathin hybrid films on electrospun nanofibres. Oppositely charged anatase TiO2 nanoparticles and poly(acrylic acid) (PAA) were alternately deposited on the surface of negatively charged cellulose acetate (CA) nanofibres using the electrostatic LBL self-assembly technique. The fibrous mats were characterized by wide-angle x-ray diffraction, Fourier transform infrared spectroscopy, scanning electron microscopy, transmission electron microscopy and Brunauer-Emmett-Teller (BET) surface area techniques. The crystalline phase of anatase TiO2 remained unchanged in the resultant TiO2/PAA films coated on CA fibrous mats. Moreover, the TiO2/PAA film coated fibres showed rough surfaces with grains due to the deposition of aggregated TiO2 particles. The average diameter of the fibres increased from 344 to 584 nm and the BET surface area of the fibrous mats increased from 2.5 to 6.0 m2 g-1 after coating with five bilayers of TiO2/PAA films.

Original languageEnglish
Pages (from-to)913-917
Number of pages5
JournalNanotechnology
Volume15
Issue number8
DOIs
Publication statusPublished - 2004 Aug

Fingerprint

carbopol 940
acrylic acid
Nanofibers
Acrylics
Nanoparticles
nanoparticles
Acids
cellulose
anatase
Titanium dioxide
acetates
Cellulose
fibers
Fibers
Self assembly
Fourier transform infrared spectroscopy
coating
self assembly
Electrostatics
x ray diffraction

ASJC Scopus subject areas

  • Engineering (miscellaneous)
  • Materials Science(all)
  • Physics and Astronomy (miscellaneous)

Cite this

Layer-by-layer structured films of TiO2 nanoparticles and poly(acrylic acid) on electrospun nanofibres. / Ding, Bin; Kim, Jinho; Kimura, Eiji; Shiratori, Seimei.

In: Nanotechnology, Vol. 15, No. 8, 08.2004, p. 913-917.

Research output: Contribution to journalArticle

Ding, Bin ; Kim, Jinho ; Kimura, Eiji ; Shiratori, Seimei. / Layer-by-layer structured films of TiO2 nanoparticles and poly(acrylic acid) on electrospun nanofibres. In: Nanotechnology. 2004 ; Vol. 15, No. 8. pp. 913-917.
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