en گروه سطح پوشش و خوردگی Surface Coatings and Corrosion Research Paper Research Paper <b><i><font face="TimesNewRomanPS-BoldItalicMT" size="1"><font face="TimesNewRomanPS-BoldItalicMT" size="1"><p align="left">Abstract: </p><p align="left">(Y2O3) and ethyl acetate as a mineralizer by hydrothermal method at a low temperature (T=.230°C, and</p><p align="left">P=100bars).The as-prepared powders were characterized by X-ray Diffraction (XRD), Fourier Transform Infrared</p><p align="left">Spectroscopy (FTIR), Scanning Electron Microscopy (SEM), UV-V Spectroscopy and Chemical Oxygen Demand</p><p align="left">(COD) of the sewage water, respectively. The results show that hydrothermal method can greatly promote the</p><p align="left">crystallization and growth of YVO4 phase. XRD pattern clearly indicates the tetragonal structure and crystallanity. An</p><p align="left">FTIR spectrum of the YVO4 shows the presence of Y-O and V-O bond, respectively. The presence of these two peaks</p><p align="left">indicates that yttrum vanadate has been formed. UV-V is absorption spectra suggesting that YVO4 particles have</p><p align="left">stronger UV absorption than natural sunlight and subsequent photocatalytic degradation data also confirmed their</p><p align="left">higher photocatalytic activity.</p></font></font><font face="TimesNewRomanPS-ItalicMT" size="1"><font face="TimesNewRomanPS-ItalicMT" size="1">In this paper, YVO4 powder was successfully synthesized from Vanadium Pentaoxide (V2O5), Yttrium Oxide</font></font></i></b> Keywords: XRD, FTIR, SEM, Hydrothermal Growth, Photocatalysis, COD. 25 30 http://ijmse.iust.ac.ir/browse.php?a_code=A-10-236-2&slc_lang=en&sid=1 P. Karimi 180031947532846001163 180031947532846001163 No K. S. Hui 180031947532846001164 180031947532846001164 No K. Komal * kompaddy@yahoo.com 180031947532846001165 180031947532846001165 Yes