Abstract: In this study, supported nonmetal (boron) doping TiO₂ coating photocatalysts were prepared by chemical vapor deposition (CVD) to enhance the activity under visible light irradiation and avoid the recovering of TiO₂. Boron atoms were successfully doped into the lattice of TiO₂ through CVD, as evidenced from XPS analysis. B-doped TiO₂ coating catalysts showed drastic and strong absorption in the visible light range with a red shift in the band gap transition. This novel B-TiO₂ coating photocatalyst showed higher photocatalytic activity in methyl orange degradation under visible light irradiation than that of the pure TiO₂ photocatalyst.

Key words: Chemical vapor deposition (CVD), TiO₂, Boron, Visible light, Photocatalysis

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