4.7 Article

In situ alternative switching between Ti4+ and Ti3+ driven by H2O2 in TiO2 nanostructures: mechanism of pseudo-Fenton reaction

Journal

MATERIALS CHEMISTRY FRONTIERS
Volume 1, Issue 10, Pages 1989-1994

Publisher

ROYAL SOC CHEMISTRY
DOI: 10.1039/c7qm00163k

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Funding

  1. National Natural Science Foundation of China [51372142]
  2. Innovative Jiaxing Elite Leading Talents Program (A)
  3. Science and Technology Project Foundation of Jiaxing City [2015BZ12004]

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Here, we report the discovery that Ti4+ in TiO2 nanostructures can be reduced in situ to Ti3+ in the presence of H2O2 to generate hydroxyl radicals for the oxidation of organic pollutants. The Ti4+ in the TiO2 nanostructure and the reduced Ti3+ driven by H2O2 can alternatively switch in situ, which endows the catalyst with a long life and excellent cyclic ability.

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