Inorganic membranes from the surface structure can be divided into: a dense membrane and a porous film two categories. Industrial production needs to be present, porous ceramic membrane applications more mature and widely used.
Inorganic membrane according to the film material, can be divided into: a ceramic membrane, a metal film, alloy film, a metal complex and a polymer material film, a zeolite composite membrane, a zeolite membrane, a glass film.
Inorganic membrane according to structural features can be divided into: Non-supported films (mostly in major laboratories and research work) and supported membranes (mainly used in industrial production mostly).
