Nano WO3 may be prepared into a transparent heat-insulating coating and be applied to architectural glass to obtain a new energy efficient building glass. Experts have introduced that this new transparent heat insulating and energy-saving glass can greatly reduce the radiance of the glass surface and improve the spectral selectivity of the glass.
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Experts also said that visible light can effectively pass through the tungsten oxide energy-saving glass to keep the interior bright. While more than 80% of the infrared rays that are invisible to the naked eye are reflected by the tungsten oxide nanoparticles therein, especially the far infrared rays are almost completely reflected without entering the room by such glass. In addition, the glass can greatly reduce the ultraviolet transmittance of the glass. Tungsten oxide nanoparticles can also be applied to hollow glass. Compared with common single-piece glass, the combination of hollow glass and tungsten oxide heat-insulating particles can save more than 60% of energy in summer and more than 70% of energy in winter.
