H. Lee / / South Korea
H. LEE / SUNCHON NATIONAL UNIVERSITY / SOUTH KOREA
C.S. YOU / SUNCHON NATIONAL UNIVERSITY / SOUTH KOREA
S.C. JUNG / SUNCHON NATIONAL UNIVERSITY / SOUTH KOREA
Lanthanum doped TiO2 photocatalyst was facilely fabricated using plasma in liquid process to enhance the photocatalytic activity by reducing band gap energy and electron-hole recombination. The physicochemical properties of fabricated photocatalyst were characterized by various methods. The amount of lanthanum element in fabricated photocatalysts was influenced by initial concentration of precursor, and the lanthanum elements were present in the form of oxides. The photocatalytic performance of photocatalysts were evaluated by degradation rate of diclofenac, the waste pharmaceutical ingredients. The lanthanum doped TiO2 photocatalysts exhibited higher photocatalytic activity than bare TiO2 under UV and blue light condition. In particular, the photocatalytic activity of lanthanum doped TiO2 photocatalysts was remarkably improved under blue light.