Cesium Tungsten Bronze Nanopowder Applied for Shopping Mall With Glass Curtain Wall

Cesium tungsten bronze nanopowder can be made into high-transparent heat insulation film with high UV resistance and near-infrared shielding function, and then be applied to the shopping mall with glass curtain wall to achieve the effect of heat insulation and energy conservation.

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According to the experts, the cesium tungsten bronze (Cs0.33WO3) nanoparticles can be prepared by a stirred bead milling process. The experts ground the micro-sized coarse Cs0.33WO3 powder with grinding beads of 50 μm in diameter to a diameter of about 50 nm in 3 h. After grinding, the prepared Cs0.33WO3 nanoparticles retained the hexagonal structure and had no significant contaminants from grinding beads. Furthermore, they exhibited a strong characteristic absorption and an excellent photothermal conversion property in the near-infrared (NIR) region, owing to the free electrons or polarons. Also, the NIR absorption and photothermal conversion property became more significant with decreasing particle size or increasing particle concentration.