Skip to content

Research at St Andrews

Synthesis of visible-light-activated yellow amorphous TiO2 photocatalyst

Research output: Contribution to journalArticle

DOI

Open Access permissions

Open

Author(s)

Chamnan Randorn, John Thomas Sirr Irvine, Peter Robertson

School/Research organisations

Abstract

Visible-light-activated yellow amorphous TiO2 (yam-TiO2) was synthesised by a simple and organic-free precipitation method. TiN, an alternative precursor for TiO2 preparation, was dissolved in hydrogen peroxide under acidic condition ( pH similar to 1) adjusted by nitric acid. The yellow precipitate was obtained after adjusting pH of the resultant red brown solution to 2 with NH4OH. The BET surface area of this sample was 261 m(2)/g. The visible light photoactivity was evaluated on the basis of the photobleaching of methylene blue (MB) in an aqueous solution by using a 250 W metal halide bulb equipped with UV cutoff filter (lambda > 420 nm) under aerobic conditions. Yam-TiO2 exhibits an interesting property of being both surface adsorbent and photoactive under visible light. It was assigned to the eta(2)-peroxide, an active intermediate form of the addition of H2O2 into crystallined TiO2 photocatalyst. It can be concluded that an active intermediate form of titanium peroxo species in photocatalytic process can be synthesised and used as a visible-light-driven photocatalyst. Copyright (C) 2008 Chamnan Randorn et al.

Close

Details

Original languageEnglish
Article number426872
Number of pages6
JournalInternational Journal of Photoenergy
Volume2008
DOIs
Publication statusPublished - 2008

    Research areas

  • Methylene-blue, Titanium-oxide, Anatase, SRTIO3, Degredation, System, Water

Discover related content
Find related publications, people, projects and more using interactive charts.

View graph of relations

Related by author

  1. Replacement of Ca by Ni in a perovskite titanate to yield a novel perovskite exsolution architecture for oxygen-evolution reactions

    Lee, J., Myung, J., Naden, A. B., Jeon, O. S., Shul, Y. G. & Irvine, J. T. S., 30 Jan 2020, In : Advanced Energy Materials. Early View, 1903693.

    Research output: Contribution to journalArticle

  2. An FeNbO4-based oxide anode for a solid oxide fuel cell (SOFC)

    Liu, X., Xie, D., Irvine, J. T. S., Ni, J. & Ni, C., 11 Jan 2020, In : Electrochimica Acta. In press, 135692.

    Research output: Contribution to journalArticle

  3. Oxygen redox activity through a reductive coupling mechanism in the P3-type nickel-doped sodium manganese oxide

    Kim, E. J., Ma, L. A., Duda, L. C., Pickup, D. M., Chadwick, A. V., Younesi, R., Irvine, J. T. S. & Armstrong, R., 6 Jan 2020, In : ACS Applied Energy Materials. Early View

    Research output: Contribution to journalArticle

  4. A B-site doped perovskite ferrate for efficient anode of a solid oxide fuel cell with in situ metal exsolution

    Ni, C., Zeng, Q., He, D., Peng, L., Xie, D., Irvine, J. T. S., Duan, S. & Ni, J., 21 Dec 2019, In : Journal of Materials Chemistry A. 7, 47, p. 26944-26953 10 p.

    Research output: Contribution to journalArticle

  5. Lattice strain-enhanced exsolution of nanoparticles in thin films

    Han, H., Park, J., Nam, S. Y., Choi, G. M., Parkin, S. S. P., Jang, H. M. & Irvine, J. T. S., 1 Dec 2019, In : Nature Communications. 10, 8 p., 1471.

    Research output: Contribution to journalArticle

ID: 606791

Top