Photocatalyst, tseem hu ua photocatalyst, yog lub ntsiab lus dav dav rau cov khoom siv semiconductor nrog cov haujlwm photocatalytic sawv cev los ntawm nanoscale titanium dioxide. Cov khoom siv photocatalyst tus neeg sawv cev yog titanium dioxide, uas tuaj yeem tsim cov khoom muaj zog oxidizing (xws li hydroxyl radicals, oxygen, thiab lwm yam) nyob rau hauv lub teeb irradiation, thiab siv tau los decompose organic tebchaw, ib co inorganic compounds, kab mob thiab kab mob. Nyob rau hauv lub neej niaj hnub, photocatalysts tuaj yeem ua rau cov pa phem thiab cov pa phem hauv huab cua, xws li formaldehyde, thiab lwm yam, thiab ua kom cov huab cua huv si zoo, thiab tib lub sijhawm, nws tuaj yeem tua tau ntau yam kab mob, thiab tuaj yeem decompose thiab harmlessly kho. cov co toxins tso tawm los ntawm cov kab mob los yog fungi.
