Synthesis and characterisation of Gd3+-doped mesoporous TiO2 materials

Photocatalytic oxidation of organic dyes and pollutants in wastewater using different modified titanium dioxides: A comparative review

“…The SRR obtained for Ce-TiO 2 was 725 which was 45 times higher than that one obtained for synthesized Fe-TiO 2 with different methods (co-thermal hydrolysis deposition, sol-gel route)[135,[211][212].Gd +3 , as a dopant, also improved the performance of TiO 2 under visible irradiation. The higher photocatalytic activity of the Gd +3 doped TiO 2 may be attributed to their high surface area and dopant effect (it damages the crystal sites of TiO 2 and avoids the probability of recombination of the electron-hole pair)[214]. As a result, the relatively high SRR which was obtained for Fedoped TiO 2 under sunlight emphasizes the application of sun irradiation instead of visible light.…”

Nanotechnology in Industrial Wastewater Treatment

“…The enhancement of the visible light photocatalytic activity of TiO 2 with the doping of non-metallic elements, such as carbon (C), nitrogen (N), boron (B) and sulphur (S) has also been reported in the literature Pozan & Kambur, 2013;Bagwasi et al 2013;Lv et al 2011;Radoičić et al 2013;Dong et al 2011;Wu et al 2009;Liu et al 2012;Yu et al 2011;Nolan et al 2012;Diker et al 2011;Cheng et al 2012;Senthilnathan & Philip, 2010;Wang et al 2010;Li et al 2012;Zheng et al 2011;Ohno et al 2004;Yang et al 2009;Ju et al 2013). Cheng et al (2012) have reported on the complete photodegradation of MB after 120 minutes by carbon self-doped TiO 2 sheets under visible light.…”

A comparative study on characterization and photocatalytic activities of gadolinium–boron codoped and mono-doped TiO2 nanoparticles

“…However, along with Gd doping, the diffraction peaks significantly decreased and became broader in width, especially the (101) diffraction peaks, which indicates that the Gd doping inhibited the growth of crystallite size efficiently and decreased the crystallite size [25]. The phenomenon can be easily understood.…”

“…Lanthanide ions could act as an effective electron scavenger to trap the conduction-band electrons of TiO 2 Fig. 5 The light absorption spectra of the four powders [25]. Thus, the growth of Gd 3?…”