The invention discloses a production method of a swelling-resistant two-dimensional SA-MXene layered
nanofiltration membrane. The production method of the swelling-resistant two-dimensional SA-MXene layered
nanofiltration membrane comprises a first step of mixing MXene precursor
powder and an
etching agent solution, carrying out a stirring reaction, and conducting centrifugal washing to obtain a two-dimensional MXene
nanosheet colloid solution; a second step of adding
sodium alginate into the two-dimensional MXene
nanosheet colloid solution, and evenly stirring and mixing an obtained mixture to obtain SA-MXene nanosheets; and a third step of stacking the SA-MXene nanosheets on a surface of a substrate to produce a membrane, and placing the membrane in a polyvalent
metal solution for cross-linking to obtain the swelling-resistant two-dimensional SA-MXene layered
nanofiltration membrane. According to the method, by evenly
grafting the
sodium alginate onto surfaces of MXene nanosheets, through a cross-linking effect of the
sodium alginate and polyvalent
metal ions, stable hydrophilic cross-linked networks are formed in interlayer channels of the nanosheets, thus the problem of swelling of a layered membrane is solved, meanwhile, due to the fact that the
sodium alginate is doped, a large number of
oxygen-containing functional groups are introduced onto surfaces of the
mass transferchannels, the channel
electronegativity is improved, and the layered membrane shows excellent selective filtering performance.