Water-plasma-assisted synthesis of black titania spheres with efficient visible-light photocatalytic activity

Gasidit Panomsuwan, Anyarat Watthanaphanit, Takahiro Ishizaki, Nagahiro Saito

Research output: Contribution to journalArticle

35 Citations (Scopus)

Abstract

Black titania spheres (H-TiO<inf>2-x</inf>) were synthesized via a simple green method assisted by water plasma at a low temperature and atmospheric pressure. The in situ production of highly energetic hydroxyl and hydrogen species from water plasma are the prominent factors in the oxidation and hydrogenation reactions during the formation of H-TiO<inf>2-x</inf>, respectively. The visible-light photocatalytic activity toward the dye degradation of H-TiO<inf>2-x</inf> can be attributed to the synergistic effect of large-surface area, visible-light absorption and the existence of oxygen vacancies and Ti<sup>3+</sup> sites.

Original languageEnglish
Pages (from-to)13794-13799
Number of pages6
JournalPhysical Chemistry Chemical Physics
Volume17
Issue number21
DOIs
Publication statusPublished - 2015 Jun 7

Fingerprint

titanium
Plasmas
Water
Oxygen vacancies
synthesis
electromagnetic absorption
Hydroxyl Radical
Light absorption
water
Atmospheric pressure
Hydrogenation
hydrogenation
Hydrogen
atmospheric pressure
Coloring Agents
dyes
degradation
Degradation
Oxidation
oxidation

ASJC Scopus subject areas

  • Physical and Theoretical Chemistry
  • Physics and Astronomy(all)

Cite this

Water-plasma-assisted synthesis of black titania spheres with efficient visible-light photocatalytic activity. / Panomsuwan, Gasidit; Watthanaphanit, Anyarat; Ishizaki, Takahiro; Saito, Nagahiro.

In: Physical Chemistry Chemical Physics, Vol. 17, No. 21, 07.06.2015, p. 13794-13799.

Research output: Contribution to journalArticle

Panomsuwan, Gasidit ; Watthanaphanit, Anyarat ; Ishizaki, Takahiro ; Saito, Nagahiro. / Water-plasma-assisted synthesis of black titania spheres with efficient visible-light photocatalytic activity. In: Physical Chemistry Chemical Physics. 2015 ; Vol. 17, No. 21. pp. 13794-13799.
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