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    photocatalyst

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    A1
    n.NounA substance that initiates or accelerates a chemical reaction when exposed to light.
    Titanium dioxide is a common photocatalyst used in air purification systems.
    n.NounA material that facilitates a chemical reaction in the presence of light, often used for environmental applications.
    The photocatalyst in this coating helps to break down pollutants on the surface.

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    Top 10 AMAZING New Green Technologies in the Works

    10:03Top 10 AMAZING New Green Technologies in the Works
    • dioxide, which is useful in cleaning the air. Titanium dioxide works as a photocatalyst

      dioxide, which is useful in cleaning the air. Titanium dioxide works as a photocatalyst

    • Titanium dioxide works as a photocatalyst by oxidizing nitrogen oxides and volatile organic compounds into soluble nitrates and fatty acids when exposed to UV light.

      Titanium dioxide works as a photocatalyst by oxidizing nitrogen oxides and volatile organic compounds into soluble nitrates and fatty acids when exposed to UV light.

    B2