Study on Photocatalytic Activity of TiO 2 Photocatalysts Doped with Metal Ions in Nitrogen Removal
LIU Li-fen, ZHANG Yang, YANG Feng-lin, Jimmy C YU
Imaging Science and Photochemistry . 2007, (3): 165 -175 .  DOI: 10.7517/j.issn.1674-0475.2007.03.165