Cs0.32WO3 has strong near-infrared shielding properties by absorbing near-infrared rays in the sunlight, so it is mainly applied to produce thermal insulating glass coating. Well, how to prepare Cs0.32WO3 nanoparticles?
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Preparation of Cs0.32WO3 Nanoparticles
Using sodium tungstate and cesium carbonate as raw materials, CsxWO3 powder can be prepared by low temperature hydrothermal reaction, with citric acid as the reducing agent. The microstructure and morphology of CsxWO3 powders were characterized by XRD and SEM, and the optical spectra and heat insulation properties of CsxWO3 powder were investigated. The results indicate that the synthesized cesium tungsten bronze powders have hexagonal Cs0.32WO3 crystal structure. The as-prepared CsxWO3 powder shows strong near-infrared absorption properties. Furthermore, the near-infrared shielding performance of glass coated with CsxWO3 coating has been further improved after UV irradiation. Especially, the glasses coated with CsxWO3 coating which was synthesized from the non-ethanol precursor solution exhibit most outstanding near-infrared shielding performance and best heat insulation effect.
