3D meshes of TiO 2 were fabricated by direct writing and subsequently sintered at 1150℃ for 2 h in an air atmosphere for photocatalytic degradation (PCD) of methylene blue(MB) solution. The crystal structure and morphology of the samples were determined by X-ray diffraction(XRD) and scanning electron microscope(SEM). PCD properties of the sintered meshes were obtained in an ultraviolet-visible light spectrophotometer, and were found to be better than that of cylindrical samples with the same

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... ght. Three kinds of mesh structures were designed, sintered and measured. The results show that reasonable design could cause significant enhancement in the PCD activity by more than 60%. This enhancement could be attributed to irradiation absorption increment, which was caused by structure design of photocatalyst.