Degradation of malachite green oxalate by UV and visible lights irradiation using nanophotocatalyst

Preparation and Characterization of Mg/TiO2 for Visible Light Photooxidative-Extractive Deep Desulfurization

“…Since sunlight consists of less than 5% UV portion, only a small fraction of solar spectrum can be utilized. In order to harvest the visible light portion of the sun, modification by metal doping has been proven to be effective (Afshar et al 2011;Choi et al 2010;Feng et al 2013;Kudo et al 2007;Linsebigler et al 1995;Wongpisutpaisan et al 2013). In principle, the metal dopants can reduce the band gap energy and thus extend the active region of TiO 2 from UV to visible light.…”

Improved Photodegradation of Organic Contaminants Using Nano‐TiO2 and TiO2–SiO2 Deposited on Portland Cement Concrete Blocks

“…Preparation of samples. The method employed for the synthesis of TiO 2 and TiO 2 -SiO 2 nanoparticles in this work is similar to that reported elsewhere, in which the TiO 2 and TiO 2 -SiO 2 nanoparticles were prepared using the sol-gel method (49)(50)(51)(52)(53). An Ammonium solution (2.5%) was dropped into the TiCl 4 solution and a white precipitant was obtained at pH = 7 at room temperature.…”

Enhanced photocatalytic activities of TiO2–SiO2 nanohybrids immobilized on cement-based materials for dye degradation

“…The method employed for the synthesis of a TiO 2 -SiO 2 nanohybrid in this work is similar to that reported elsewhere, in which the TiO 2 -SiO 2 was prepared using a sol-gel method [47][48][49]. Typically, a 2.5-% NH 3 solution was dropped into TiCl 4 solution and a white precipitate was obtained at a pH of 7 at room temperature.…”