Selenium-Doped TiO₂ as an Efficient Photocatalyst for the Oxidation of Tetrahydrofuran to γ-Butyrolactone Using Hydrogen Peroxide as Oxidant

Abstract

Selenium-doped TiO₂ has been used for the first time as efficient photocatalyst for the oxidation of tetrahydrofuran by using hydrogen peroxide as oxidant, affording γ-butyrolactone (GBL) in excellent yield with higher selectivity. TiO₂-doped with selenium showed greater visible absorption and exhibited superior photocatalytic activity than undoped TiO₂. The prepared catalyst was subjected to reflux in Millipore water in order to remove the surface-bound selenium species. After this treatment, the catalyst did not show any leaching and showed efficient recycling with consistent catalytic efficiency.

Key words

photocatalysis - selenium-doped titania - oxidation - THF

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