Effect of Nd2O3 addition on the surface phase of TiO2 and photocatalytic activity studied by UV Raman spectroscopy

Effect of etching on the composition and structure of anodic spark deposition films on titanium

“…From the Raman spectrum of TiO 2 many different information can be obtained: titanium oxide phase fraction [22,23], crystallinity, crystallite size [24] and residual stresses [25] down to a minimum coating thickness of about 100 to 250 nm, depending on the substrate chemistry [26]. Crystallographic alterations caused by small amounts of dopants into the TiO 2 structure can also be easily discriminated by the appearance of their associated Raman bands [27], thus making Raman spectroscopy adequate for the characterization of functionalized titanium oxide layers [28][29][30]. The presence of a characteristic Raman spectrum associated with sodium titanate and clearly discernible A C C E P T E D M A N U S C R I P T…”

Synthesis, characterization and photocatalytic activity of neodymium, nitrogen and neodymium–nitrogen doped TiO2

“…Shah et al [10,11] explain the effect of Nd on the pairs separation by the supposition that the high oxygen affinity of interstitially located Nd 3+ ions effectively creates a localized positive charge around Ti and/or form an oxygen vacancy. The potential energy of the dopant ion is disturbed and electrons can be trapped.…”

Biodiesel production from crude Jatropha Curcas oil using calcium based mixed oxide catalysts

“…In view of this, the more stable binary system between CaO and NiO synthesized using co-precipitation method is expected to enhance the durability and activity of transesterification reaction. Nd 2 O 3 has attracted extensive attention as a heterogeneous photocatalyst for the degradation of organic pollutants in water and air under UV irradiation [26,27]. However, Nd 2 O 3 based mixed oxide has been used as heterogeneous solid base catalyst for biodiesel production [4,28].…”