Preparation and characterization of a nano-sized Mo/Ti mixed photocatalyst

First principle calculations of the electronic and optical properties of pure and (Mo, N) co-doped anatase TiO2

“…Due to the similarity in ionic size of Mo 6+ (0.062 nm) and Ti 4+ (0.068 nm), Mo substitution at Ti sites causes minimum lattice distortion and results in stable doped model [25]. Jeon et al [26] prepared Mo/Ti mixed oxide photocatalyst with varying Mo 5+ content from 0 mol% to 2.5 mol% which showed shift in the absorption edge towards visible light. 2.5% Mo/Ti sample showed best visible light absorption and the band gap was effectively reduced about 0.22 eV compared with that of the pure TiO 2 [26].…”

First principles calculations of electronic and optical properties of Mo-doped rutile TiO2

“…Theoretical investigations have also been carried out to study the band structures of TiO 2 phases including anatase [13][14][15] and rutile [16][17][18][19][20]. Mo, as a transition metal, has been used to dope TiO 2 for photocatalytic applications, showing the effects to make the materials catalytically active under visible light [21][22][23][24][25][26]. Such investigation has been mainly on the enhancement of the photocatalytic activity, with anatase being the focus of interest.…”

Photocatalytic behaviors and structural characterization of nanocrystalline Fe-doped TiO2 synthesized by mechanical alloying

“…Serpone [5] suggested that if particle's surface area increases by reducing the particle size, especially down to a nano-size range, photocatalytic characteristics could be fairly improved. Also, in order to extend the absorption threshold of TiO 2 to visible light, the effects of some transition metal ion dopants such as Fe, V, Mn, Co and Ni have been investigated for the TiO 2 system [6][7][8][9][10][11]. Fe has been most widely examined among these elements.…”