01432naa a2200253 a 450000100080000000500110000800800410001902400420006010000190010224501030012126000090022452007000023365000160093365000110094965000130096065000150097365000100098865000120099870000230101070000150103370000170104870000280106577300850109320116832015-05-15       2012    bl uuuu     u00u1 u    #d7 a10.1016/j.jphotochem.2012.07.0112DOI1 aLUIZ, D. de B.  aPhotocatalytic reduction of nitrate ions in water over metal-modified TiO2.h[electronic resource]  c2012  aTiO2 and TiO2 doped with Zn2+, Cu2+ and Cr3+ were used as photocatalysts to reduce nitrate and to oxidize formic acid. The metals were added to the TiO2 support by photodeposition and this method did not affect the form of the original crystalline semiconductor (100% anatase). The data obtained in the structural characterization and in the nitrate photoreduction experiments showed that 1.0 g L−1 4.4% Zn?TiO2 photocatalyst had the highest photocatalytic activity and selectivity toward nitrogen. The selectivity and conversion were higher than 95 and 91%, respectively, using a CHOOH:nitrate molar ratio of 16:1, which is twice the theoretical demand in the absence of dissolved oxygen.  aFormic acid  aMetals  aNitrates  aPhotolysis  aMetal  aNitrato1 aANDERSEN, S. L. F.1 aBERGER, C.1 aJOSÉ, H. J.1 aMOREIRA, R. de F. P. M.  tJournal of Photochemistry and Photobiology A: Chemistrygv. 246, p. 36-44, 2012.