Hydrothermal synthesis of nanosized titania photocatalysts using novel water-soluble titanium complexes

Makoto Kobayashi, Koji Tomita, Valery Petrykin, Shu Yin, Tsugio Sato, Masahiro Yoshimura, Masato Kakihana

研究成果: Conference contribution

18 引文 斯高帕斯(Scopus)

摘要

Highly crystalline titania nano-particles were synthesized by hydrothermal method using novel stable water-soluble titanium complexes. It was confirmed that single phase anatase, rutile and brookite, which can be rarely synthesized as a single phase, can be obtained by varying the ligand in the complex and pH of the aqueous solution. TEM observations and BET specific surface area measurements had shown that these samples consisted of nanosized particles of 5-200 nm and had high specific surface areas of 25-150 m2/g. According to UV-visible diffuse reflectance spectra, these titania samples absorbed light in the visible region (λ > 400 nm). Photocatalytic activities in NO oxidation reaction exhibited by synthesized titania powders under the irradiation by UV- visible light were higher than the activity of the commercial TiO2 photocatalyst P25 (Degussa). Especially, under illumination by only visible light of above 510 nm wavelength, photocatalytic activity of the obtained specimens exceeded that of P25 more than four times. We also clearly demonstrated that single phase brookite had high photocatalytic activity for NO oxidation.

原文English
主出版物標題Advances in Nanomaterials and Processing - IUMRS - ICA - 2006 International Conference in Asia
發行者Trans Tech Publications Ltd
頁面723-726
頁數4
版本PART 1
ISBN(列印)3908451310, 9783908451310
DOIs
出版狀態Published - 2007 一月 1
事件IUMRS International Conference in Asia 2006, IUMRS-ICA 2006 - Jeju, Korea, Republic of
持續時間: 2006 九月 102006 九月 14

出版系列

名字Solid State Phenomena
號碼PART 1
124-126
ISSN(列印)1012-0394

Other

OtherIUMRS International Conference in Asia 2006, IUMRS-ICA 2006
國家Korea, Republic of
城市Jeju
期間06-09-1006-09-14

All Science Journal Classification (ASJC) codes

  • Atomic and Molecular Physics, and Optics
  • Materials Science(all)
  • Condensed Matter Physics

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  • 引用此

    Kobayashi, M., Tomita, K., Petrykin, V., Yin, S., Sato, T., Yoshimura, M., & Kakihana, M. (2007). Hydrothermal synthesis of nanosized titania photocatalysts using novel water-soluble titanium complexes. 於 Advances in Nanomaterials and Processing - IUMRS - ICA - 2006 International Conference in Asia (PART 1 編輯, 頁 723-726). (Solid State Phenomena; 卷 124-126, 編號 PART 1). Trans Tech Publications Ltd. https://doi.org/10.4028/3-908451-31-0.723