▎ 摘　　要

NOVELTY - Preparing modified montmorillonite for adsorbing volatile organic compounds comprises (i) crushing the montmorillonite, passing through 80-200 mesh sieve, and performing plasma treatment to obtain material A, (ii) adding material A into water, uniformly mixing, adding hexadecyl trimethyl ammonium chloride, reacting at 45-55 degrees C for 60-120 minutes, centrifuging, washing with water, and drying to obtain material B, (ii) mixing material B, dodecylamine and ethyl silicate, stirring at 45-55 degrees C for 2-3.5 hours, filtering, and drying to obtain material C, and (iv) treating material C with superheated steam at 300-450 degrees C for 30-45 minutes, and performing secondary plasma treatment and three plasma treatments in sequence to obtain material D. USE - The modified montmorillonite is useful for adsorbing volatile organic compounds. DETAILED DESCRIPTION - Preparing modified montmorillonite for adsorbing volatile organic compounds comprises (i) crushing the montmorillonite, passing through 80-200 mesh sieve, and performing plasma treatment to obtain material A, (ii) adding material A into water, uniformly mixing, adding o hexadecyl trimethyl ammonium chloride, reacting at 45-55 degrees C for 60-120 minutes, centrifuging, washing with water, and drying to obtain material B, (ii) mixing material B, dodecylamine and ethyl silicate, stirring at 45-55 degrees C for 2-3.5 hours, filtering, and drying to obtain material C, (iv) treating material C with superheated steam at 300-450 degrees C for 30-45 minutes, and performing secondary plasma treatment and three plasma treatments in sequence to obtain material D, (v) adding material D into water, adding graphene oxide suspension, adding sodium hydroxide, stirring evenly, adding epichlorohydrin, adding ammonium persulfate aqueous solution and sodium bisulfite aqueous solution at 60-65 degrees C, reacting at 60-65 degrees C for 2-3.5 hours, filtering, washing with acetone, washing with distilled water to neutrality, drying and pulverizing to obtain material E, (vi) adding material E into water, evenly dispersing, adding starch acrylic acid graft copolymer and magnesium oxide, soaking at 55-60 degrees C for 3-5 hours, filtering, drying, adding into screw extruder for expansion, and drying material F, and (vii) adding material F into water for uniform dispersion, adding quaternary ammonium cyclodextrin, stirring at 50-65 degrees C for 5-10 hours, centrifuging, drying, mixing with sulfonated polystyrene microspheres, fumed silica, cerium oxide, zeolite, asbestos powder, straw powder and water, uniformly mixing, extruding, crushing and drying to obtain modified montmorillonite for adsorbing volatile organic compound.