Ionic-liquid-assisted growth of flower-like TiO2 film on Ti substrate with high photocatalytic activity

Hu Li, Jia Zhang, Xiaofang Chen, Gaifang Pan, Yuning Huo

Research output: Contribution to journalArticleResearchpeer-review

11 Citations (Scopus)

Abstract

Flower-like anatase TiO2 films on Ti substrate were prepared via direct oxidation in H2O2 solution assisted with [Bmim]BF4 ionic liquid. The promotion effect of ionic liquid to both the growth of anatase TiO2 crystal and the formation of flower-like morphology was demonstrated. The formation process of flower-like TiO 2 film was investigated via adjusting the oxidation reaction time. During the photo-degradation of aqueous rhodamine B solution under UV light (λ = 365 nm) in rotating disk reactor, the obtained flower-like TiO 2 film exhibited efficient decomposition of rhodamine B, which could be contributed that the flower-like morphology of TiO2 film with high anatase crystallization and mesoporous structure led to the enhancement of light harvesting and reactant adsorption. Furthermore, the excellent stability of TiO2 film during the photo-degradation reaction was resulted from the stable combination of TiO2 film with Ti substrate.

Original languageEnglish
Pages (from-to)12-17
Number of pages6
JournalJournal of Molecular Catalysis A: Chemical
Volume373
DOIs
Publication statusPublished - 1 Jul 2013
Externally publishedYes

Keywords

  • [Bmim]BF ionic liquid
  • Direct oxidation
  • Flower-like TiO film
  • Photocatalytic activity Rhodamine B

Cite this

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title = "Ionic-liquid-assisted growth of flower-like TiO2 film on Ti substrate with high photocatalytic activity",
abstract = "Flower-like anatase TiO2 films on Ti substrate were prepared via direct oxidation in H2O2 solution assisted with [Bmim]BF4 ionic liquid. The promotion effect of ionic liquid to both the growth of anatase TiO2 crystal and the formation of flower-like morphology was demonstrated. The formation process of flower-like TiO 2 film was investigated via adjusting the oxidation reaction time. During the photo-degradation of aqueous rhodamine B solution under UV light (λ = 365 nm) in rotating disk reactor, the obtained flower-like TiO 2 film exhibited efficient decomposition of rhodamine B, which could be contributed that the flower-like morphology of TiO2 film with high anatase crystallization and mesoporous structure led to the enhancement of light harvesting and reactant adsorption. Furthermore, the excellent stability of TiO2 film during the photo-degradation reaction was resulted from the stable combination of TiO2 film with Ti substrate.",
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author = "Hu Li and Jia Zhang and Xiaofang Chen and Gaifang Pan and Yuning Huo",
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Ionic-liquid-assisted growth of flower-like TiO2 film on Ti substrate with high photocatalytic activity. / Li, Hu; Zhang, Jia; Chen, Xiaofang; Pan, Gaifang; Huo, Yuning.

In: Journal of Molecular Catalysis A: Chemical, Vol. 373, 01.07.2013, p. 12-17.

Research output: Contribution to journalArticleResearchpeer-review

TY - JOUR

T1 - Ionic-liquid-assisted growth of flower-like TiO2 film on Ti substrate with high photocatalytic activity

AU - Li, Hu

AU - Zhang, Jia

AU - Chen, Xiaofang

AU - Pan, Gaifang

AU - Huo, Yuning

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N2 - Flower-like anatase TiO2 films on Ti substrate were prepared via direct oxidation in H2O2 solution assisted with [Bmim]BF4 ionic liquid. The promotion effect of ionic liquid to both the growth of anatase TiO2 crystal and the formation of flower-like morphology was demonstrated. The formation process of flower-like TiO 2 film was investigated via adjusting the oxidation reaction time. During the photo-degradation of aqueous rhodamine B solution under UV light (λ = 365 nm) in rotating disk reactor, the obtained flower-like TiO 2 film exhibited efficient decomposition of rhodamine B, which could be contributed that the flower-like morphology of TiO2 film with high anatase crystallization and mesoporous structure led to the enhancement of light harvesting and reactant adsorption. Furthermore, the excellent stability of TiO2 film during the photo-degradation reaction was resulted from the stable combination of TiO2 film with Ti substrate.

AB - Flower-like anatase TiO2 films on Ti substrate were prepared via direct oxidation in H2O2 solution assisted with [Bmim]BF4 ionic liquid. The promotion effect of ionic liquid to both the growth of anatase TiO2 crystal and the formation of flower-like morphology was demonstrated. The formation process of flower-like TiO 2 film was investigated via adjusting the oxidation reaction time. During the photo-degradation of aqueous rhodamine B solution under UV light (λ = 365 nm) in rotating disk reactor, the obtained flower-like TiO 2 film exhibited efficient decomposition of rhodamine B, which could be contributed that the flower-like morphology of TiO2 film with high anatase crystallization and mesoporous structure led to the enhancement of light harvesting and reactant adsorption. Furthermore, the excellent stability of TiO2 film during the photo-degradation reaction was resulted from the stable combination of TiO2 film with Ti substrate.

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KW - Direct oxidation

KW - Flower-like TiO film

KW - Photocatalytic activity Rhodamine B

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