Graphitic carbon nitride(g-C3N4)

a novel two dimensional carbon based nanomaterial

has been widely applied in catalysis degradation

biosensor

energy storage and biomedicine.The in built N rich functional groups and electronic delocalization properties endow g-C3N4 with complex adsorption capabilities

including complexion

hydrophobic effect

π-π conjugation

hydrogen bond and electrostatic interaction.Particularly

the large specific surface area

satisfactory pH tolerance

facile and inexpensive preparation of g-C3N4 make itself qualified as an extraordinarily wonderful adsorbent.In recent years

g-C3N4 and its composites have been applied to the sample pretreatment in solid phase extraction

magnetic solid phase extraction and solid phase microextraction.In this review

the applications of g-C3N4 materials in sample pretreatment are summarized

and the future trends and prospects of g-C3N4 and its composites in sample pretreatment are also presented.