Photocatalytic conversion of gaseous ethylbenzene on lanthanum-doped titanium dioxide nanotubes

- 1.2%-La3+-TNTs was synthesized via sol-gel method combined with nanotube-formation.
- 1.2%-La3+-TNTs had a higher photocatalytic activity for EB conversion than pure TiO2.
- Rate controlling steps were different under various RHs of reaction media.
- Active radicals by photocatalysis played dominant roles during the conversion of EB.
- A detailed pathway was proposed for the photocatalytic conversion of EB.