Enhanced photoactivity of Sm, N, P-tridoped anatase-TiO2 nano-photocatalyst for 4-chlorophenol degradation under sunlight irradiation

Experiments concerning radical scavengers indicate that OH in the solution is responsible for the degradation of 4-CP. The enhanced photocatalytic performance of Sm, N, P-tridoped TiO2 can be attributed to the increase in visible light absorption ability, surface hydroxyl and specific surface area, the improvement of the surface textural properties, as well as more efficient inhibition of the recombination of photogenerated electrons and holes.