Microwave-hydrothermal synthesis of extremely high specific surface area anatase for decomposing NO x

Sonthikan Sitthisang, Sridhar Komarneni, Jonggol Tantirungrotechai, Young Dong Noh, Huihui Li, Shu Yin, Tsugio Sato, Hiroaki Katsuki

Research output: Contribution to journalArticle

9 Citations (Scopus)

Abstract

Apparently C-doped and undoped or pure nanoparticles of anatase were synthesized using a microwave hydrothermal process in the temperature range of 140-180 °C for 1 h from several Ti precursors, such as Ti ethoxide, Ti isopropoxide and Ti oxysulfate. Nanoparticles of anatase samples were characterized by powder X-ray diffraction, transmission electron microscopy (TEM) and photocatalytic activity measurements. Results showed that nanoparticles in the size range of 4-17 nm of anatase were obtained in all cases with surface areas in the range of 151-267 m 2/g. The photocatalytic activity of the prepared titanias was measured using methylene blue (MB) and NO x molecules. Because MB has very strong adsorption on the samples, photocatalytic degradation under either solar light or black light irradiation was found to be very limited. However, the DeNO x abilities of carbon-doped titanias were higher than those of Degussa P25 commercial titania sample and undoped or pure titanias especially under irradiation by long wavelength or visible light (>500 nm).

Original languageEnglish (US)
Pages (from-to)6099-6105
Number of pages7
JournalCeramics International
Volume38
Issue number8
DOIs
StatePublished - Dec 1 2012

Fingerprint

Hydrothermal synthesis
Specific surface area
Titanium dioxide
Microwaves
Nanoparticles
Methylene Blue
Irradiation
X ray powder diffraction
Titanium
Transmission electron microscopy
Adsorption
Degradation
Wavelength
Molecules
Carbon
titanium dioxide
Temperature

All Science Journal Classification (ASJC) codes

  • Electronic, Optical and Magnetic Materials
  • Ceramics and Composites
  • Process Chemistry and Technology
  • Surfaces, Coatings and Films
  • Materials Chemistry

Cite this

Sitthisang, Sonthikan ; Komarneni, Sridhar ; Tantirungrotechai, Jonggol ; Dong Noh, Young ; Li, Huihui ; Yin, Shu ; Sato, Tsugio ; Katsuki, Hiroaki. / Microwave-hydrothermal synthesis of extremely high specific surface area anatase for decomposing NO x In: Ceramics International. 2012 ; Vol. 38, No. 8. pp. 6099-6105.
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Sitthisang, S, Komarneni, S, Tantirungrotechai, J, Dong Noh, Y, Li, H, Yin, S, Sato, T & Katsuki, H 2012, 'Microwave-hydrothermal synthesis of extremely high specific surface area anatase for decomposing NO x ', Ceramics International, vol. 38, no. 8, pp. 6099-6105. https://doi.org/10.1016/j.ceramint.2012.04.057

Microwave-hydrothermal synthesis of extremely high specific surface area anatase for decomposing NO x . / Sitthisang, Sonthikan; Komarneni, Sridhar; Tantirungrotechai, Jonggol; Dong Noh, Young; Li, Huihui; Yin, Shu; Sato, Tsugio; Katsuki, Hiroaki.

In: Ceramics International, Vol. 38, No. 8, 01.12.2012, p. 6099-6105.

Research output: Contribution to journalArticle

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AU - Sitthisang, Sonthikan

AU - Komarneni, Sridhar

AU - Tantirungrotechai, Jonggol

AU - Dong Noh, Young

AU - Li, Huihui

AU - Yin, Shu

AU - Sato, Tsugio

AU - Katsuki, Hiroaki

PY - 2012/12/1

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