One-step controllable synthesis of three-dimensional WO₃ hierarchical architectures with different morphologies decorated with silver nanoparticles: enhancing the photocatalytic activity

Abstract

Hierarchical architecture self-assembled three-dimensional WO3 and WO3·Ag with high uniformity have been successfully obtained using peroxopolytungstic acid as precursor and silver in a morphological engineering approach under moderate hydrothermal conditions.

Tungsten-Based Catalysts for Environmental Applications

“…Morphology and properties of Ag-WO3 hierarchical materials were also investigated by Capeli et al [380] for the degradation of rhodamine B (RhB) dye under 467 nm LED light irradiation. Three-dimensional WO3 catalysts decorated with silver nanoparticles (Ag NPs) were prepared by a one-step hydrothermal method in the absence of surfactant (WO3Ag).…”

Regulating NIR reflecting property of hydrothermally synthesized tungsten oxide nanostructures via calcination

“…Three distinct regions are spotted in the TG curve shown in figure S1. The slight weight loss observed at the beginning of the TG curve accounts for the release of physically adsorbed water molecules from the sample surface [24]. Weight loss of about 7.3% observed in the 200 °C-300 °C temperature range, indicates the loss of chemically adsorbed water molecules from the sample.…”

Hydrothermal construction of WO3·0.33H2O/g-C3N4 nanocomposites with enhanced adsorption and photocatalytic activity

“…2(a)), which could reduce surface energy. 22 EDS mapping of WO 3 •0.33H 2 O shows that it only contains W and O elements (Fig. 2(b)).…”