Cited by 73Advanced Cellulose Research StudiesTiO2 Photocatalysis and Solar CellsMicrobial Fuel Cells and Bioremediation

Conductive properties of TiO2/bacterial cellulose hybrid fibres

Gutierrez, Junkal, Tercjak, Agnieszka, Algar, Itxaso, Retegi, Aloña, Mondragon, Iñaki·2012·Journal of Colloid and Interface Science

Abstract

Conductive properties of TiO(2) nanoparticles and TiO(2)/BC hybrid inorganic/organic fibres were investigated by electrostatic force microscopy (EFM). TiO(2)/BC hybrid composites were prepared based on bacterial cellulose produced by Gluconobacterxylinum, being the bacterial cellulose as a hydrophilic substrate for TiO(2) nanoparticles synthesized via sol-gel. Taken into account hydrophilic nature of the cellulose, TiO(2) nanoparticles were located on the surface of the fibres due to hydrogen bonding interactions. EFM was used to determine qualitatively conductive properties of TiO(2) nanoparticles and their TiO(2)/BC hybrid inorganic/organic fibres. Results indicate that TiO(2)/BC hybrid fibres respond to applied bias regardless of the sign of the applied voltage.

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Crossref · 10.1016/j.jcis.2012.03.075

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  • Hydroxyl groups on the surface of BC fibers provoke H-bonding interactions with the hydrophilic inorganic TiO2 sol-gel network.

    “hydroxyl groups on the surface of the BC fibers provoke H-bonding interactions with the hydrophilic inorganic TiO 2 sol-gel network.”
  • TiO2 nanoparticles in TiO2/BC hybrid fibers respond to the applied voltage of an EFM tip as strong electrostatic dipole-dipole interactions are generated by hydrogen bonding connections between hydroxyl groups in cellulose and their counterparts in the inorganic oxide, eliciting a high electric dipole moment of TiO2 nanoparticles.

    “TiO 2 nanoparticles respond to the applied voltage (-3, 0 and 3 V) of the electrostatic force microscopy (EFM) tip as the strong electrostatic dipole-dipole interactions are generated by hydrogen bonding connections between the hydroxyl groups in the cellulose and their counterparts in the inorganic oxide, thus eliciting a high electric dipole moment of TiO 2 nanoparticles in the TiO 2 /BC hybrid”

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Authors
Gutierrez, J., Tercjak, A., Algar, I., Retegi, A., & Mondragon, I.
Affiliations
University of the Basque Country (ES)
Corresponding author
Tercjak, Agnieszka
Venue
Journal of Colloid and Interface Science
Publisher
Elsevier BV
Published
2012-07
Volume
377
Issue
1
Pages
88-93
ISSN
0021-9797 (ISSN-L)
OpenAlex
W2150278632
Cited by
73
References
31
Citations by year
2026: 1 · 2025: 3 · 2024: 6 · 2023: 5 · 2022: 7 · 2021: 5 · 2020: 6 · 2019: 7 · 2018: 1 · 2017: 3 · 2016: 11 · 2015: 6 · 2014: 4 · 2013: 6 · 2012: 1
FWCI
2.20
Type
journal article
Language
en
Open access
closed
Locations
  • Journal of Colloid and Interface Science (publishedVersion)
  • PubMed (publishedVersion)
Funders
  • Eusko Jaurlaritza
  • Ministerio de Ciencia e Innovación
Topics
  • Physical Sciences › Materials Science › Biomaterials › Advanced Cellulose Research Studies
  • Physical Sciences › Energy › Renewable Energy, Sustainability and the Environment › TiO2 Photocatalysis and Solar Cells
  • Physical Sciences › Environmental Science › Environmental Engineering › Microbial Fuel Cells and Bioremediation
Keywords
titanium dioxide nanoparticles, bacterial cellulose, hybrid fibres, conductive properties, electrostatic force microscopy, sol-gel synthesis, hydrogen bonding, organic-inorganic composites, hydrophilic substrates
MeSH terms
Cellulose, Electric Conductivity, Particle Size, Surface Properties, Titanium, Gluconobacter, Nanoparticles, Nanofibers

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