Synthesis of uniform WO3 square nanoplates via an organic acid-assisted hydrothermal process

Controlled synthesis of monodisperse WO3·H2O square nanoplates and their gas sensing properties

“…The morphological parameters such as size, shape and facet of tungsten oxide particles are critically important in its applications such as sensing properties [19,20]. Recently, in order to control the morphology and size of tungsten oxides, many efforts have been devoted to the syntheses route [21][22][23] As a result, a variety of chemical or physical methods have been applied to synthesize special nanostructures and morphologies such as nanowires [24,25], nanorods [26,27], nanotube [28], nanoplates [29,30], nanocuboids [31,32], hexagonal nanodisks [33], nanospheres [34] and hollow spheres [35].…”

Facile synthesis of WO3 nanorods/g-C3N4 composites with enhanced photocatalytic activity

“…Tungsten trioxide (WO 3 ) is a promising visible-light-driven photocatalyst due to its narrow band gap (2.6-2.8 eV) [35], nontoxicity and resilience to photocorrosion. However, pure WO 3 is not an efficient photocatalyst, and the photocatalytic activity of pure WO 3 is very low because of the rapid recombination of photo-generated charge carriers and the relatively low conductive band level of WO 3 [36,37].…”

Effect of citric acid on structure and photochromic properties of WO3–TiO2–ZnO composite films prepared by a sol–gel method

“…The acids bind selectively onto the particular faces of the freshly formed WO 3 seed particles and stabilize the specific planes. The growth rates of different faces of WO 3 are modified by the presence of citric acid [16]. As a result, different morphologies of WO 3 -TiO 2 -ZnO films were obtained with different concentration of citric acid.…”