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

Gasidit Panomsuwan; Anyarat Watthanaphanit; Takahiro Ishizaki; Nagahiro Saito

doi:10.1039/c5cp00171d

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 journal › Article › peer-review

73 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 language	English
Pages (from-to)	13794-13799
Number of pages	6
Journal	Physical Chemistry Chemical Physics
Volume	17
Issue number	21
DOIs	https://doi.org/10.1039/c5cp00171d
Publication status	Published - 2015 Jun 7

ASJC Scopus subject areas

Physical and Theoretical Chemistry
Physics and Astronomy(all)

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abstract = "Black titania spheres (H-TiO2-x) 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-TiO2-x, respectively. The visible-light photocatalytic activity toward the dye degradation of H-TiO2-x can be attributed to the synergistic effect of large-surface area, visible-light absorption and the existence of oxygen vacancies and Ti3+ sites.",

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AU - Panomsuwan, Gasidit

AU - Watthanaphanit, Anyarat

AU - Ishizaki, Takahiro

AU - Saito, Nagahiro

PY - 2015/6/7

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N2 - Black titania spheres (H-TiO2-x) 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-TiO2-x, respectively. The visible-light photocatalytic activity toward the dye degradation of H-TiO2-x can be attributed to the synergistic effect of large-surface area, visible-light absorption and the existence of oxygen vacancies and Ti3+ sites.

AB - Black titania spheres (H-TiO2-x) 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-TiO2-x, respectively. The visible-light photocatalytic activity toward the dye degradation of H-TiO2-x can be attributed to the synergistic effect of large-surface area, visible-light absorption and the existence of oxygen vacancies and Ti3+ sites.

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

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