Enhanced photocatalytic activities of Nd-doped TiO2 under visible light using a facile sol-gel method

Synthesizing and Optimizing Rutile TiO2 Nanoparticles for Magnetically Guided Drug Delivery

“…The “*” depicted in the corresponding XRD plot relates to neodymium titanium oxide. Liang et al 34 synthesized the Nd-doped TiO 2 NPs and observed that the addition of Nd ions favoured the anatase phase. The pristine TiO 2 NPs exhibited a mixed anatase-rutile phase with a dominant characteristic rutile peak, but the rutile phase was completely absent in the Nd-doped TiO 2 NPs.…”

Engineering the photocatalytic efficiency of nanoscale TiO2 anatase with doped (Nd/Y) and co-doped (Nd–Y/Nd–Sm) lanthanides to decompose the azo dye orange G under UV-VIS irradiation

“…1 The absence of rutile and brookite in our samples demonstrates that the chosen synthesis method, calcination temperature and time were precise to synthesize pure undoped and doped tetragonal anatase since pristine TiO 2 nanoparticles also did not reveal any supplementary phases, moreover, it is well known that doping with rare-earth elements prevents the phase transformation from anatase to rutile due to the formed RE-O bond which strengthens the TiO 2 anatase structure increasing the transition temperature to higher values. 19 From the different enlarged plotted patterns, we can clearly notice an obvious effect of the rare-earth atoms whether in single or double doping systems, which is exposed by the decrease of the peaks intensity of the different doped samples in comparison with the undoped one in the order of I TiO2 4 I Nd1% 4 I Nd3% 4 I Nd5% , I Nd5% 4 I Y5% and I Nd-Sm 4 I Nd-Y . The decrement reflects the deterioration of TiO 2 anatase crystallinity as a result of substituting Ti 4+ by RE 3+ , [RE 3+ = Nd 3+ , Y 3+ , Sm 3+ ], since RE 3+ ions have larger ionic radii than Ti 4+ , where…”

“…Furthermore, it has been reported in the literature that introducing RE elements can hinder the growth of the TiO 2 anatase nano-crystallites which is proved in our study. 19,20 FTIR spectra It is well known that pure TiO 2 anatase regularly shows a couple of distinguishable peaks in the region of [400-1100] cm À1 that is attributed to the various (Ti-O) stretching vibration bands as well as Ti-O-Ti, Ti-O and Ti-O-O. Our synthetized undoped TiO 2 anatase also depicts the same peaks which are positioned at the wavelength interval of [400-1035] cm À1 .…”

“…10 gives the reaction kinetic constant (K app ) of orange G for TiO 2 , Ti 0.99 Nd 0.01 O 2 , Ti 0.99 Nd 0.005 Y 0.005 O 2 and Ti 0.99 -Nd 0.005 Y 0.005 O 2 , and the reaction rate was given by the following equation. The calculated values are depicted in Table4 19.…”

Impact of Titanium Dioxide (TiO2) Modification on Its Application to Pollution Treatment—A Review

“…Hence, precious metal deposition and metal ion doping are mostly used to modify TiO 2 . At present, the metal materials which are used to modify TiO 2 include transition metals (Cr, Fe, and Cu) [79][80][81], precious metals (Ag, Au, and Pt) [82][83][84], and rare earth metals (Ce, La, and Nd) [85][86][87].…”