Shape dependence of photosensitive properties of WO3 oxide for photocatalysis under solar light irradiation

Functionalization-Mediated Preparation via Acid Precipitation and Photocatalytic Activity of In Situ Ag2WO4@WO3.H2O Nanoplates

“…Tungsten oxide hydrate is a familiar allotrope of WO 3 , and it is considered as one of the most attractive photocatalysts working under solar/visible-light irradiations. [1][2][3][4] The advantages of WO 3 materials are their stability in acid and base environments, the tailorability of their crystal structure, and the tunability of their optical bandgap. However, an obstacle for the wide use of WO 3 in photocatalytic applications is the high recombination rate of photogenerated electron-hole pairs, resulting in low photocatalytic activity of pristine WO 3 .…”

Comprehensive Insights into the Family of Atomically Thin 2D‐Materials for Diverse Photocatalytic Applications

“…[ 392 ] In another example, WO 3 nanoplates and pseudospheres showed photocatalytic degradation of MB with 70% and 88% degradation after 380 min irradiation time, which is relatively less compared to the efficiency of 2D WO 3 nanosheets. [ 393 ] One of the important features to be considered while synthesizing facet‐dependent materials is the pH condition of the reaction. For instance, BiOX nanolayers with dominant {001} facets that obtained through a two‐phase synthesis process showed phenomenal visible light driven degradation toward MO and RhB dyes with improved degradation rates.…”

Core‐Shell Engineered WO3 Architectures: Recent Advances from Design to Applications

“…WO 3 is a metal oxide semiconducting material that is commonly used in various research fields, such as photocatalytic H 2 production, [ 1,2 ] photoelectrochemical (PEC) water splitting, [ 3,4 ] pollutant remediation, [ 5–7 ] electrochromism/smart windows, [ 8–10 ] sensors, [ 11 ] energy storage and conversion, [ 12 ] and recently CO 2 reduction. [ 13 ] Compared to common TiO 2 semiconductors, the factors that render WO 3 a popular choice in these applications are its excellent optoelectronic properties, structural rearrangements resulting in several polymorphs (e.g., triclinic, monoclinic, orthorhombic, tetragonal, cubic, and hexagonal), high stability in harsh environments, non‐toxicity, low cost, viable band positions for combination with other semiconductors, and photocatalytic degradation properties due to active radical generation via its valence band (VB).…”

“…[17] In addition, the optoelectronic properties of WO 3 are sensitive toward phase rearrangement and changes in shape/morphology. [6][7][8]18] Notably, a high VB potential yields a high oxidation power, rendering the use of WO 3 favorable in oxidation reactions. [19] To enhance the light absorptivity and electrical properties of WO 3 , strategies such as doping, [20] heterojunction formation with other materials, [5,21] noble metal decoration, [22] and structural tuning, including morphological tuning [18] and core-shell structures, [23] have been developed.Over the last decade, the core-shell structural modulation of WO 3 has emerged as a viable approach for developing functional interfacial systems with tunable physical and chemical properties.…”