Cs0.33WO3 Nanopowder Applied for Balcony Thermal Insulating Glass Coating

Cs0.33WO3 nanopowder possesses excellent NIR absorption for preparing balcony thermal insulating glass coating. Also, Cs0.33WO3 nanoparticles have excellent photothermal conversion property for other applications such as photothermal therapy.

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Some experts have studied the variation of solution temperature with the NIR irradiation time for the aqueous dispersions of Cs0.33WO3 nanoparticles with different particle concentrations obtained after grinding for 3 h, in which the result for deionized water was also indicated for comparison. And it was obvious that the temperature increase owing to the photothermal conversion could be enhanced by increasing the particle concentration. When the concentration of Cs0.33WO3 nanoparticles was 0.08 wt.%, the solution temperature could be raised to about 55°C after 10 min. The temperature increase was above 30°C. However, when the concentration of Cs0.33WO3 nanoparticles was above 0.08 wt.%, the temperature increase could not be further enhanced. It was suggested that the absorption of NIR light by the Cs0.33WO3 nanoparticles might have reached the maximum, that is, the NIR light has been absorbed completely.

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