Abstract Highly ordered mesoporous WO3/TiO2 (MWTs) composite materials with tunable
chemical compositions were obtained by a surfactant template-assisted evaporation-induced self-
assembly (EISA)processes.ThestructurepropertiesoftheMWTmaterialswerecharacterizedby
small angle XRD, TEM and N2 sorption. The resultant materials showed large amount of ordered
mesopores and high chemical homogeneity .With increasing crystallinity degree ,the order degrees
of mesostructure turned worse gradually.The MWT hybrids exhibited excellent visible light
response due to the addition of WO3 with narrow band gap .Photocatalytic performances of the
MWT samples were determined by measuring the photo-degradation of rhodamine B dye and
phenol under simulated solar light irradiation.The effect of material parameters such as surface
area , crystallinity and chemical compositions in the binary heterostructured system on photo-
catalytic performance were discussed in details.