Full Paper

Synthesis of Bi-doped TiO2 Nanotubes and Enhanced Photocatalytic Activity for Hydrogen Evolution from Glycerol Solution

  1. Wenxi Zhao2,
  2. Xitao Wang1,*,
  3. Huanxin Sang2,
  4. Kang Wang1

Article first published online: 1 MAR 2013

DOI: 10.1002/cjoc.201201151

Issue

Chinese Journal of Chemistry

Chinese Journal of Chemistry

Volume 31, Issue 3, pages 415–420, March, 2013

Additional Information

How to Cite

Zhao, W., Wang, X., Sang, H. and Wang, K. (2013), Synthesis of Bi-doped TiO2 Nanotubes and Enhanced Photocatalytic Activity for Hydrogen Evolution from Glycerol Solution. Chin. J. Chem., 31: 415–420. doi: 10.1002/cjoc.201201151

Author Information

  1. 1

    Tianjin Key Laboratory of Applied Catalysis Science and Technology, College of Chemical Engineering and Technology, Tianjin University, Tianjin 300072, China

  2. 2

    Tianjin Academy of Environmental Sciences, Tianjin 300191, China

*Tianjin Key Laboratory of Applied Catalysis Science and Technology, College of Chemical Engineering and Technology, Tianjin University, Tianjin 300072, China

Publication History

  1. Issue published online: 18 MAR 2013
  2. Article first published online: 1 MAR 2013
  3. Manuscript Accepted: 13 JAN 2013
  4. Manuscript Received: 20 NOV 2012

Funded by

  • the National Natural Science Foundation of China. Grant Number: 21276190 and 20806059

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Keywords:

  • Bi-doped;
  • TiO2 nanotubes;
  • photocatalytic hydrogen evolution;
  • glycerol solution

Abstract

Bi-doped TiO2 nanotubes with variable Bi/Ti ratios were synthesized by hydrothermal treatment in 10 mol·L−1 NaOH (aq.) through using Bi-doped TiO2 particles derived from conventional sol-gel method as starting materials. The effects of Bi content on the morphology, textural properties, photo absorption and photocatalytic activity of TiO2 nanotubes were investigated. The scanning electron microscopy (SEM), transmission electron microscopy (TEM), X-ray diffraction (XRD) and X-ray photoelectron spectroscopy (XPS) observations of the obtained samples revealed the formation of titanate nanotube structure doped with Bi, which exists as a higher oxidation state than Bi3+. Bi-doping TiO2 nanotubes exhibited an extension of light absorption into the visible region and improved photocatalytic activities for hydrogen production from a glycerol/water mixed solution as compared with pure TiO2 nanotubes. There was an optimal Bi-doped content for the photocatalytic hydrogen production, and high content of Bi would retard the phase transition of titanate to anatase and result in morphology change from nanotube to nanobelt, which in turn decreases the photocatlytic activity for hydrogen evolution.

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