Heterostructured TiO₂/SiO₂/γ-Fe₂O₃/rGO Coating with Highly Efficient Visible-Light-Induced Self-Cleaning Properties for Metallic Artifacts.

ABSTRACT: A novel nanohybrid composite of TiO₂, SiO₂, γ-Fe₂O₃, and reduced graphene oxide (TiO₂@Si:Fe:rGO) is fabricated by the sol-gel method. The properties of the coated film were examined by structural and self-cleaning analyses using simulated discoloration/soiling and roofing tests. The fabricated transparent TiO₂@Si:Fe:rGO composite showed excellent photoactivity and wettability, behaving well in self-cleaning applications. The addition of SiO₂ improved the crystalline structure and surface hydroxylation of TiO₂ nanoparticles. γ-Fe₂O₃ decreased the recombination rate of e^-/h⁺ pairs, and significantly improved photocatalytic activity under visible light. Moreover,

SUBMITTER: Mokhtarifar M 

PROVIDER: S-EPMC8153401 | biostudies-literature | 2020 Jul

REPOSITORIES: biostudies-literature