Characterization and photocatalytic properties of hexagonal and monoclinic WO3 prepared via microwave-assisted hydrothermal synthesis

Preparation of cerium-doped ZnO hierarchical micro/nanospheres with enhanced photocatalytic performance for phenol degradation under visible light

“…The photocatalysis which can decompose organic pollutants into nontoxic moleculesis regarded as one of the most promising ways to deal with these problems. To date, many oxide semiconductors, such as ZnO [1][2][3], TiO 2 [4,5], Nb 2 O 5 [6], Bi 2 O 3 [7] and WO 3 [8] have been reported as significant photocatalytic materials in various organic pollutants degradation and elimination. ZnO is a wide band gap (~3.3 eV) semiconductor which has been extensively used because of its unique chemical and physical properties, environmental stability, abundant availability and low cost [2].…”

P-doped TiO2 with superior visible-light activity prepared by rapid microwave hydrothermal method

“…The products exhibited much better electrochemical reversibility and specific capacitance retention than that of the single Ni(OH) 2 at high current densities. WO 3 nanoparticles with hexagonal and monoclinic structures were synthesized via a microwave-assisted hydrothermal process without the use of any additives in Diana B. Hernandez-Uresti's reports [17].…”

Photocatalytic properties of h-WO3 nanoparticles obtained by annealing and h-WO3 nanorods prepared by hydrothermal method

“…Methyl orange was selected as a probe molecule, as its absorption maximum (465 nm) is exactly where WO 3 has a minimum in its UV-Vis spectrum. MO is one of the most widespread dyes for testing the photocatalytic activity of WO 3 [14]. Then the lamp was switched on and the decline of the MO concentration was followed by a Jasco V-550 type UV-Vis spectrophotometer.…”

“…On the other hand, the hydrothermal synthesis is powerful method for preparing nanostructured WO 3 photocatalysts [13][14][15]. When SO 4 2-is added to the standard Na 2 SO 4 and HCl reaction mixture, it acts as a structure directing agent during the hydrothermal synthesis to obtain h-WO 3 nanorods [16].…”