Publication:
Hydrothermal synthesis and photocatalytic activity of anatase TiO 2 nanofiber

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Issued Date

2012

Resource Type

Article

File Type

application/pdf

ISSN

15334880

DOI

10.1166/jnn.2012.4939

Other identifier(s)

2-s2.0-84863968527

Rights Holder(s)

มหาวิทยาลัยศรีนครินทรวิโรฒ

Bibliographic Citation

Journal of Nanoscience and Nanotechnology. Vol 12, No.6 (2012), p.4998-5003

Suggested Citation

Supothina S., Rattanakam R., Tawkaew S. Hydrothermal synthesis and photocatalytic activity of anatase TiO 2 nanofiber. Journal of Nanoscience and Nanotechnology. Vol 12, No.6 (2012), p.4998-5003. doi:10.1166/jnn.2012.4939 Retrieved from: https://hdl.handle.net/20.500.14740/7002

Title

Hydrothermal synthesis and photocatalytic activity of anatase TiO 2 nanofiber

Author(s)

Supothina S.
 Rattanakam R.
 Tawkaew S.

Abstract

TiO 2 nanofiber consisting of 15±5 nm anatase grains was synthesized by hydrothermal treatment of fibrous hydrogen titanate precursor at 180 °C for 20 h. The hydrogen titanate precursor was synthesized by hydrothermal treatment of commercial P25 TiO 2 powder in 10 M NaOH at 200 °C for 20 h followed by soaking in 0.1 M HNO 3 to perform ion exchange between the as-synthesized Na titanate and H. By controlling pH of the solution during hydrothermal treatment of the hydrogen titanate precursor, pure anatase TiO 2 nanofiber was obtained. Its band-gap energy determined from the onset of diffused reflectance spectrum was 3.19 eV which is equal to that of anatase TiO 2 powder. The TiO 2 nanofiber showed higher photodecomposition efficiency than the Cotiox KA-100 TiO 2 but lower than the P25 TiO 2. Photodegradation is the predominant process for 'Reactive blue 171' removal. Copyright © 2012 American Scientific Publishers. All rights reserved.

Subject(s)

Reactive Blue 171
 Anatase TiO
 Band gap energy
 Diffused reflectance
 Hydrogen titanate
 Hydrothermal
 Hydrothermal treatments
 Photo-decomposition
 Photocatalytic activities
 TiO
 Hydrogen
 Hydrothermal synthesis
 Nanofibers
 Photocatalysis
 Photocatalysts
 Sodium
 Titanium dioxide
 Nanomaterial
 Titanium
 Titanium dioxide
 Water
 Article
 Catalysis
 Chemistry
 Conformation
 Heat
 Light
 Macromolecule
 Materials testing
 Particle size
 Radiation exposure
 Surface property
 Ultrastructure
 Catalysis
 Hot Temperature
 Light
 Macromolecular Substances
 Materials Testing
 Molecular Conformation
 Nanostructures
 Particle Size
 Surface Properties
 Titanium
 Water

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URI

https://hdl.handle.net/20.500.14740/7002

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Scopus: Year 1983-2021

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