TiO₂ yog siv dav hauv thaj chaw ntawm photocatalysis, feem ntau suav nrog cov hauv qab no:
Photomineralization : Nyob rau hauv UV teeb irradiation, TiO₂ tuaj yeem oxidize thiab decompose organic thiab inorganic kuab paug nyob rau hauv dej, thiab thaum kawg mineralize rau inorganic me me molecules, carbon dioxide thiab dej. Txoj kev no muaj cov txiaj ntsig tseem ceeb hauv kev kho dej phwj tuaj, deodorization thiab ntxuav tus kheej.
Cov kab mob bactericidal: Cov hydroxyl radicals tsim los ntawm TiO₂ thaum lub sij hawm photocatalytic txheej txheem yog heev oxidizing thiab muaj peev xwm ua kom puas cov kab mob cell phab ntsa thiab cov kab mob cov proteins, yog li inhibiting kev loj hlob ntawm cov kab mob, kab mob thiab lwm yam kab mob nyob rau hauv lub kua nto thiab cov kua.
Induced super hydrophilicity : Lub nto coated nrog TiO₂ zaj duab xis yuav dhau los ua hydrophilic nyob rau hauv UV teeb irradiation, ua kom yooj yim ntxuav cov av ntawm qhov chaw.