Synthesis and Characterization of SrTiO_3 Nanoparticles Prepared from Layered Titanate Nanotube

A series of nanoparticle SrTiO_3 samples were simply synthesized by hydrothermal method using layered titanate nanotube and Sr(Ac)_2 as precursors.The samples were characterized by using powder X-ray diffraction(XRD),scanning electron microscope(SEM),transmission electron microscope (TEM),photoluminescence(PL),Raman spectroscope and specific surface area measurement.The mea- surement results show that the diameter distribution of prepared SrTiO_3 nanoparticles with disordered pores is mainly in the range of 10-30nm,and with the increase of reaction temperature or reaction time,diameter of the nanoparticles increases,whereas specific surface area and photocatalytic activity for degradation of methylene blue decrease.