Flower-like and hollow sphere-like WO3 porous nanostructures: Selective synthesis and their photocatalysis property

Fabrication of hexagonal/cubic tungsten oxide homojunction with improved photocatalytic activity

“…Tungsten oxide (including tungsten oxide hydrate), as a kind of n-type semiconductor material, has been intensively studied due to their good optical and electrical properties, and the potential applications in lithium batteries, electrochromic windows, gas sensors and photocatalysis [17][18][19][20][21]. Furthermore, the tungsten oxide-based materials appear some different crystal structures including tungsten bronze-type hexagonal, pyrochlore-type cubic and so on, which suggests a potential in constructing homojunction photocatalysts.…”

Tungsten-based nanomaterials (WO 3 & Bi 2 WO 6 ): Modifications related to charge carrier transfer mechanisms and photocatalytic applications

“…The C=S bond destroys the hydrogen bonds between the layers in the rim, making the lamellar structure unstable, which later scrolls to form microtubes. The flower-like morphology takes place either by self organization (oriented attachment) [39] or by the dissolution of small nanoflakes (Ostwald ripening) [80]. The formation of hollow spheres proceed only through Ostwald ripening process, wherein dissolution of core occurs as a result of high surface energy and precipitates as larger particles, which segregates at the shell [80].…”

Synthesis of WO3 flower-like hierarchical architectures and their sensing properties

“…When CA is not added during synthesis process, as we can see from The above observations indicate that the presence of CA strongly influences the morphologies of WO 3 products. The formation of WO 3 flower-like hierarchical architectures maybe attributed to the Ostwald ripening process and self assembly process [20,28,29]. Sodium tungstate (Na 2 WO 4 ·2H 2 O) was used as tungsten source, which was first dissolved in deionized water forming colorless solution.…”