Original Article

Facile Synthesis of Self-Sensitized TiO2 Photocatalysts and Their Higher Photocatalytic Activity

  1. He Zuoli1,2,
  2. Que Wenxiu1,2,*,
  3. Xie Haixia1,2,
  4. Chen Jing1,2,
  5. Yuan Yuan1,2,
  6. Sun Peng1,2

Article first published online: 13 OCT 2012

DOI: 10.1111/j.1551-2916.2012.05426.x

Issue

Journal of the American Ceramic Society

Journal of the American Ceramic Society

Volume 95, Issue 12, pages 3941–3946, December 2012

Additional Information

How to Cite

Zuoli, H., Wenxiu, Q., Haixia, X., Jing, C., Yuan, Y., Peng, S. (2012), Facile Synthesis of Self-Sensitized TiO2 Photocatalysts and Their Higher Photocatalytic Activity. Journal of the American Ceramic Society, 95: 3941–3946. doi: 10.1111/j.1551-2916.2012.05426.x

Author Information

  1. 1

    Electronic Materials Research Laboratory, School of Electronic and Information Engineering, Xi'an Jiaotong University, Xi'an, Shaanxi, China

  2. 2

    International Center for Dielectric Research, Xi'an Jiaotong University, Xi'an, Shaanxi, China

*Author to whom correspondence should be addressed. e-mail: wxque@mail.xjtu.edu.cn

Publication History

  1. Issue published online: 5 DEC 2012
  2. Article first published online: 13 OCT 2012
  3. Manuscript Accepted: 2 AUG 2012
  4. Manuscript Received: 3 APR 2012

Funded by

  • Major Program of the National Natural Science Foundation of China. Grant Number: 90923012
  • Ministry of Science and Technology of China. Grant Number: 2009AA03Z218

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“Self-sensitized” TiO2 photocatalysts sensitized by TiO2 nanocrystals with quantum structures were successfully prepared via a solvothermal process and a facile subsequent treatment process. We calculated an optimized structure by using a pseudopotential Hartree–Fock method and investigated the structure using X-ray diffraction, scanning, and transmission electron microscopy, and UV–Vis spectrophotometer. The self-sensitized products exhibit an extremely high photocatalytic activity due to their unique optical properties. To discuss the optical properties of the 3-D nanoparticles sensitized by the TiO2 nanocrystals, we proposed a model of the electron band structure of the as-prepared products to give a reasonable explanation for such a high photocatalytic activity.

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