Abstract
Titanium dioxide (TiO2) is widely used as a photocatalyst for the purification of industrial wastes. Scientists have attempted to enhance its photocatalytic activity by doping it with metallic and non-metallic elements. Metal dopants can shift TiO2 absorption from ultra violet (UV) to visible light but may reduce photocatalytic efficiency due to recombination centres. Doping TiO2 with non-metals like N, C, S, and F can narrow the energy band gap and improve photocatalytic efficiency. In this work, we studied S-doped TiO2, which combines high photocatalytic activity and structural stability.
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