Dinitrogen photoreduction to ammonia over titanium dioxide powders doped with ferric ions

Enhanced photocatalytic activity of transition metal ions Mn2+, Ni2+ and Zn2+ doped polycrystalline titania for the degradation of Aniline Blue under UV/solar light

“…Furthermore, the large band gap of TiO 2 limits its application under solar light. Doping with transition metal ion into the TiO 2 matrix has been frequently reported to suppress charge carrier recombination and also for the onset shift in the band gap absorption to the visible region, thus enhancing the activity [12][13][14][15][16][17][18][19][20][21][22]. Paola et al have investigated the doping of Co, Cr, Cu, Fe, Mo, V and W into TiO 2 matrix prepared by wet impregnation method [19].…”

Characterization and photocatalytic activity of noble-metal-supported surface TiO2/SiO2

“…Due to its band-gap energy, TiO 2 utilizes only a very small fraction of the solar spectrum; thus, doping with transition metals has been employed to extend the light absorption to the visible region [1][2][3][4][5]. The presence of foreign metal species is generally detrimental for the degradation of organic species in aqueous system, but many controversial results are reported.…”

Titania and Noble Metals Deposited Titania Catalysts in the Photodegradation of Tartazine

“…Various attempts have been instigated to overcome the incompetence of TiO 2 , which includes dye sensitization [10,11] and doping of transitional metal ions the TiO 2 crystal lattice etc. [12]. Although the transition metal catalysts were active in visible light, the carrier recombination occurs and low activity of the semiconductor was observed [13].…”