Effect of High-Energy Vibrating Ball Milling in the Reduction of the Crystallite Size of TiO&sub&2&/sub& Particles

摘要

In this work, TiO_(2) powders were prepared by high energy vibrating ball milling. X-ray diffraction (XRD), Scanning electron microscopy (SEM) and Photon cross correlation spectroscopy (PCCS with Nanophox) were used to determine the crystallite size of anatase TiO_(2). Depending on the grinding conditions (short grinding time, ball diameter, stainless steel ball and grinding powder ratio), the crystallite size decreased from 34 nm to 8 nm. The average diameter of a TiO_(2) particle with 8 nm crystals was ~221 nm. No structural phase transition was observed during milling.