Selective growth of Ti³⁺/TiO₂/CNT and Ti³⁺/TiO₂/C nanocomposite for enhanced visible-light utilization to degrade organic pollutants by lowering TiO₂-bandgap.

ABSTRACT: A convenient route was developed for the selective preparation of two stable nanocomposites, Ti³⁺/TiO₂/CNT (labeled as TTOC-1 and TTOC-3) and Ti³⁺/TiO₂/carbon layer (labeled as TTOC-2), from the same precursor by varying the amount of single-walled carbon nanotubes used in the synthesis. TiO₂ is an effective photocatalyst; however, its wide bandgap limits its usefulness to the UV region. As a solution to this problem, our prepared nanocomposites exhibit a small bandgap and wide visible-light (VL) absorption because of the introduction of carbonaceous species and Ti³⁺ vacancies. The photocatalytic efficiency of the nanocomposites was examined via the degradation of methylene blue dye under VL. Excellent photocatalytic activit

SUBMITTER: Akter J 

PROVIDER: S-EPMC8096813 | biostudies-literature | 2021 May

REPOSITORIES: biostudies-literature