Photocatalyst-quantum dot composite material, preparation method and application thereof

Abstract

The present application belongs to the field of composite materials, and relates to a composite material with formaldehyde removal and antibacterial properties, in particular to a photocatalyst-quantum dot composite material with formaldehyde removal and antibacterial properties and a preparation method thereof, wherein the mass fraction of each component of the photocatalyst-quantum dot composite material is as follows: 40-60% of nano-titanium dioxide, 30-50% of purple carbon quantum dots, 5-15% of a dispersing agent, and 1-5% of silver salt. Through the synergistic effect of carbon quantum dots and nano-titanium dioxide, and the assistance of the dispersing agent and silver ions, the photocatalyst-quantum dot composite material can enhance the transmission of photo-generated electrons, inhibit the recombination of photo-generated electrons and holes, thereby enhancing the photocatalytic effect of nano-titanium dioxide, and having the effects of formaldehyde removal, antibiosis, and odor removal.

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