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Controllable Synthesis and Photocatalytic Properties of 2D Nanosheets Rutile TiO
2
Gao Wenlong，Chen Xuebing，Zhang Jing
A two⁃dimensional nano flake rutile titanium dioxide (TiO
2) semiconductor material was synthesized under low temperature by hydrothermal method.The effects of HCl concentration on the crystalline phase,crystallinity,morphology,particle size and photoelectric properties of obtained TiO
2 particles are studied using XRD,SEM and SPV.The results indicate that the micron spherical,nanosheets and nanorods rutile TiO
2 particles can be synthesized by controlling the HCl concentration at 3,5,7 mol/L,respectively.Moreover,the photocatalytic performance of obtained rutile TiO
2 particles is further investigated by degradation of rhodamine B. The results show that the activities of micron spherical,nanosheets and nanorods rutile TiO
2 samples are higher than that of traditional rutile TiO
2 sample obtained by calcination method.Compared with micron spherical and nanorods rutile TiO
2 samples,2D nanosheets rutile TiO
2 sample has better photocatalytic properties.SPV results reveal that the 2D nanosheets rutile TiO
2 has a significant efficiency on photogenerated charges separation and migration.
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