A simple synthesis way to obtain iron-doped TiO2 nanoparticles as photocatalytic surfaces

Abstract Mesoporous TiO2 nanoparticles synthesized by the sol-gel method were impregnated with different iron contents (0.0125, 0.025, 0.1, 1.0 wt%). The samples were characterized by XRD, UV–Vis DR, N2 adsorption/desorption, SEM and TEM. Their photocatalytic activity was evaluated in terms of the degradation and mineralization of acid orange 7 (AO7) in aqueous solution under UV–Vis and visible radiation. An iron loading of 0.1 wt% allowed enhance the photocatalytic performance. This behavior is attributed to the Fe3+ ions finely dispersed on the titania surface, whose presence decrease the band gap and could stabilize the separation between the photogenerated electron-hole pairs.

• Publication year

  2019

• Venue

  Chemical Physics Letters

• Publication date

  2019-10-01

• Fields of study

  Materials Science, Chemistry, Environmental Science

• Identifiers
  DOI 10.1016/J.CPLETT.2019.136643
• External record

  Open on Semantic Scholar

• Source metadata

  Semantic Scholar

• No claims are published for this paper.

• No concepts are published for this paper.

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