Cesium Tungsten Bronze Nanopowder Applied for Hotel Thermal Insulating Glass Coating

Cesium tungsten bronze nanopowder is the best functional material for preparing hotel thermal insulating glass coating, so it is important to obtain cesium tungsten bronze nanoparticles from bead milling of Cs0.33WO3 coarse powder. For example, the experts performed the bead milling of Cs0.33WO3 coarse powder in aqueous solution in the absence of extra stabilizers. And the they found that the prepared Cs0.33WO3 nanoparticles were stabilized in aqueous solution via electrostatic repulsion mechanism, owing to their electric double layer.

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According to the experts, the effect of pH on the zeta potential of Cs0.33WO3 nanoparticles was investigated to determine the appropriate solution pH, since the electrostatic repulsion was strongly influenced by the surface charge of particles. They found that Cs0.33WO3 nanoparticles had an isoelectric point of about pH 1.8. With increasing pH, their zeta potential decreased and then approached a constant of about −35 mV when pH was above 8. Thus, the aqueous solution for the bead milling of Cs0.33WO3coarse powder was fixed at pH 8 by adding potassium hydroxide in deionized water.

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