The invention provides a method for using a
metal-organic framework material to purify water, exchange ions with water or magnetize water and relates to the technical field of
water treatment. The invention relates to a method for using the
metal-organic framework material to purify water, exchange ions with water or magnetize water, to purity water and exchange ions with water, to purify water and magnetize water, to exchange ions with water and magnetize water, or to purify water, exchange ions with water and magnetize water. The
metal-organic framework material contains pores, at least one metal
ion and at least one
organic compound, wherein the
organic compound is at least bidentate and is bound (preferably, coordinately bound) with the metal ions. The invention also relates to a water purifier which contains the metal-organic framework material and is used for realizing the purpose. The method and the water purifier provided by the invention can be used for absorbing harmful substances in water, such as
chlorine, peculiar smell, heterochrosis, peculiar
odor matters, particle impurities, organic matters, chemical matters, heavy metal ions, and the like, achieving a function of purifying water and reducing the
hardness of water. The metal-organic framework material contains ferromagnetic metal ions, thereby being capable of endowing water with
magnetism.