Skip to content

Research at St Andrews

Homogeneous doping of substitutional nitrogen/carbon in TiO2 plates for visible light photocatalytic water oxidation

Research output: Contribution to journalArticle

DOI

Open Access Status

  • Embargoed (until 15/04/20)

Author(s)

Tingting Wu, Ping Niu, Yongqiang Yang, Li-Chang Yin, Jun Tan, Huaze Zhu, John T. S. Irvine, Lianzhou Wang, Gang Liu, Hui-Ming Cheng

School/Research organisations

Abstract

Extending the light absorption range of wide‐bandgap photocatalysts into the visible light region is significant in terms of fully harvesting and converting solar light. The desirable band‐to‐band redshift of the absorption edge of semiconducting binary metal oxides such as prototypical photocatalyst TiO2 by doping is long targeted but remains a challenge, up to date. Here, by taking the advantage of abundant 1D diffusion channels with rhombus‐like cross‐sections along the c‐axis in the crystal structure of titanium oxalate hydrate to promote the entrance of nitrogen dopant species into the bulk and subsequent thermal topotactic transition in an atmosphere of gaseous ammonia, homogeneous doping of substitutional carbon/nitrogen for oxygen in the TiO2 decahedral plates with a dominant anatase phase is obtained for the first time. The resultant TiO2−x(CN)y with an unusual band‐to‐band visible light absorption spectrum can induce photocatalytic water oxidation to release oxygen under visible light irradiation. This study provides not only a promising visible light–responsive TiO2 photocatalyst, but also an important strategy for developing other solar‐driven photocatalysts.
Close

Details

Original languageEnglish
Article number1901943
JournalAdvanced Functional Materials
Volume29
Issue number25
Early online date15 Apr 2019
DOIs
Publication statusPublished - 21 Jun 2019

    Research areas

  • Homogeneous doping, Photocatalyst, Topotactic transition, Visible light, Water splitting

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

View graph of relations

Related by author

  1. Boosting photoelectrochemical water splitting performance of Ta3N5 nanorod array photoanodes by forming a dual co-catalyst shell

    Chen, R., Zhen, C., Yang, Y., Sun, X., Irvine, J. T. S., Wang, L., Liu, G. & Cheng, H-M., May 2019, In : Nano Energy. 59, p. 683-688 6 p.

    Research output: Contribution to journalArticle

  2. Control of spatially homogeneous distribution of heteroatoms to produce red TiO2 photocatalyst for visible-light photocatalytic water splitting

    Hong, X., Tan, J., Zhu, H., Feng, N., Yang, Y., Irvine, J., Wang, L., Liu, G. & Cheng, H-M., 2 Jan 2019, In : Chemistry - A European Journal. Early View

    Research output: Contribution to journalArticle

  3. Layered lithium niobium (III) oxide - LiNbO2 as a visible-light-driven photocatalyst for H2 evolution

    Xu, X., Liu, G., Ni, S. & Irvine, J. T. S., 20 Nov 2018, In : Journal of Physics: Energy. 1, 1, 7 p., 015001.

    Research output: Contribution to journalArticle

  4. Maximizing the visible light photoelectrochemical activity of B/N-doped anatase TiO2 microspheres with exposed dominant {001} facets

    Hong, X., Kang, Y., Zhen, C., Kang, X., Yin, L-C., Irvine, J. T. S., Wang, L., Liu, G. & Cheng, H-M., Jun 2018, In : Science China Materials. 61, 6, p. 831-838 8 p.

    Research output: Contribution to journalArticle

  5. Substitutional carbon‐modified anatase TiO2 decahedral plates directly derived from titanium oxalate crystals via topotactic transition

    Niu, P., Wu, T., Wen, L., Tan, J., Yang, Y., Zheng, S., Liang, Y., Li, F., Irvine, J. T. S., Liu, G., Ma, X. & Cheng, H., 17 May 2018, In : Advanced Materials. 30, 20, 1705999.

    Research output: Contribution to journalArticle

Related by journal

  1. Advanced Functional Materials (Journal)

    David John Cole-Hamilton (Editor)
    19911999

    Activity: Publication peer-review and editorial work typesEditor of research journal

Related by journal

  1. Monothiatruxene-based, solution-processed green, sky-blue, and deep-blue organic light-emitting diodes with efficiencies beyond 5% limit

    Maciejczyk, M. R., Zhang, S., Hedley, G. J., Robertson, N., Samuel, I. D. W. & Pietraszkiewicz, M., 8 Feb 2019, In : Advanced Functional Materials. 29, 6, 13 p., 1807572.

    Research output: Contribution to journalArticle

  2. Hierarchical domain structure and extremely large wall current in epitaxial BiFeO3 thin films

    Long Bai, Z., Cheng, X., Chen, D. F., Zhang, D. W., Chen, L-Q., Scott, J. F., Hwang, C. S. & Jiang, A. Q., 6 Jun 2018, In : Advanced Functional Materials. Early View, 10 p.

    Research output: Contribution to journalArticle

  3. Time-resolved studies of energy transfer in thin films of green and red fluorescent proteins

    Zajac, J. M., Schubert, M., Roland, T., Keum, C., Samuel, I. D. W. & Gather, M. C., 15 Jan 2018, In : Advanced Functional Materials. Early View

    Research output: Contribution to journalArticle

  4. Ultrafast switching in avalanche-driven ferroelectrics by supersonic kink movements

    Salje, E. K. H., Wang, X., Ding, X. & Scott, J. F., 6 Jun 2017, In : Advanced Functional Materials. 27, 21, 6 p., 1700367.

    Research output: Contribution to journalArticle

ID: 258643944