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Environmental Science and Pollution Research

, Volume 25, Issue 31, pp 31250–31261 | Cite as

Synthesis of mesoporous core-shell TiO2 microstructures with coexposed {001}/{101} facets: enhanced intrinsic photocatalytic performance

  • Liang Wang
  • Yingjuan Xie
  • Wenxiu Liu
  • Qi Wang
  • Wenbin Cao
Research Article
  • 118 Downloads

Abstract

TiO2 microstructures were synthesized via a facile one-step route for enhanced intrinsic photocatalytic performance. The prepared TiO2 microstructures are featured by both mesoporous core-shell structures and coexposed {001}/{101} facets. Their intrinsic photocatalytic performance were remarkably enhanced due to their high specific surface area, coexposed {001}/{101} facets, and promoted separation of photogenerated carriers. Furthermore, the origin and detailed mechanism for diethylenetriamine (DETA) that served as a high efficient stabilizer of TiO2 {001} facet have been theoretically investigated. Finally, a new DETA-modified Ostwald ripening mechanism was originally proposed when studying the growth mechanism of the mesoporous core-shell TiO2 spherical microstructures with coexposed {001}/{101} facets.

Keywords

TiO2 {001} facets Core-shell Mesoporous Photocatalytic 

Notes

Funding information

This work was financially supported by The National Key Research and Development Program of China (Grant. No: 2016YFC0700901, 2016YFC0700607) and the Project of BZZ14J001.

Supplementary material

11356_2018_3113_MOESM1_ESM.docx (15.2 mb)
ESM 1 (DOCX 15552 kb)

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Copyright information

© Springer-Verlag GmbH Germany, part of Springer Nature 2018

Authors and Affiliations

  • Liang Wang
    • 1
  • Yingjuan Xie
    • 1
  • Wenxiu Liu
    • 1
  • Qi Wang
    • 1
  • Wenbin Cao
    • 1
  1. 1.School of Materials Science and EngineeringUniversity of Science and Technology BeijingBeijingChina

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