In order to fabricate high efficient photocatalyst with visible light response

TiO2 nanowires/Bi2WO6 composite catalysts with point-line structure were prepared by hydrothermal method. The composite catalysts were characterized by X-ray powder diffraction （XRD）

scanning electron microscope （SEM）

Transmission electron microscope （TEM） and UV-vis diffuse reflectance spectra （DRS）. The result indicates that titanium resource

hy- drothermal reaction temperature

solvent and the contents of TiO2nanowires are the important influencing factors for the formation of point-line structure. Anatase TiO2 nanowires prepared with butyl titanate as titanium resource pres- ent good crystallinity. 50% TiO2nanowires/Bi2WO6 composite catalysts show excellent point-line structure when the temperature of hydrothermal reaction is 180 ℃ with ethylene glycol as solvent

which present the improved absorption in the visible region due to coupling narrow-band-gap semiconductor Bi2 WO6

possessing gap energy of 2.70 eV.