The invention discloses a preparation method and application of a
biomass-based super-crosslinked
polymer, and belongs to the technical field of porous adsorbent preparation,
coffee grounds SCGs are degreased, an extract is obtained through ultrasonic-assisted
solvent extraction, 4, 4-dichloromethyl
biphenyl is used as a cross-linking agent,
ferric chloride is used as a catalyst, and catalytic cross-linking is performed to form the super-crosslinked
polymer. The
coffee grounds are used as a
biomass raw material, the super-crosslinked
polymer prepared from the extract obtained through a specific extraction process has excellent specific surface area, the BET specific surface area reaches 1575 m < 2 > / g, the polymer structure stability is excellent, the super-crosslinked polymer has excellent adsorption performance on
triazole substances, the maximum adsorption capacity on triadimenol and the maximum adsorption capacity on
tebuconazole are 262.16 mg / g and 264.04 mg / g respectively, and the super-crosslinked polymer can be used for adsorbing the
triazole substances. Under different pH values, the adsorption performance of the material is kept at 90% or above, which shows that the material has good
chemical stability, in addition, the polymer also has excellent cycle stability, and after repeated adsorption and
desorption for five times, the adsorption efficiency of the polymer to
triazole substances such as triadimenol is still kept at 90% or above.