Highly　ordered　aligned　nitrogen　doped　titania　nanotubes　array　films　have　been　successfully　prepared　by　liquid　phase　deposition　(LPD)　method.　A　new　band　gap　in　visible　light　region　(570　nm)　corresponding　to　2.17　eV　could　be　formed　by　nitrogen　doping.　Effects　of　anodic　alumina　membrane　type　on　the　morphology　of　titania　films　have　been　studied.　Using　the　membrane　with　a　certain　volume　fraction　of　Al2O3　(less　than　0.71),　the　ordered　aligned　titania　nanotubes　were　obtained.　Otherwise,　titania　existed　as　ordered　aligned　nanorods.　Under　the　irradiation　of　light　with　wavelength　larger　than　410　nm,　the　photocatalytic　activity　of　nitrogen　doped　TiO2　nanotube　film　was　3　times　greater　than　that　of　pure　TiO2　film　due　to　the　high　visible　light　absorption.　Furthermore,　TiO2　nanotube　film　exhibited　much　higher　photocatalytic　activity　than　the　TiO2　nanorod　film.　(C)　2010　Elsevier　B.V.　All　rights　reserved.