▎ 摘　　要

NOVELTY - Preparing graphene/loofah hybrid aerogel, comprises (i) mixing loofah fiber with an alkaline solution, mixing treatment, washing the loofah fibers with deionized water until neutral and drying to obtain pretreated loofah fibers; (ii) mixing the pretreated loofah fiber with an oxidant solution, mixing, washing loofah fibers with deionized water until neutral and drying to obtain oxidized loofah fibers; (iii) adding graphene oxide dispersion to a hydrothermal reaction kettle, immersing oxidized loofah fiber in graphene oxide dispersion, heating hydrothermal reaction kettle, subjecting to microwave, ultraviolet rays, gamma ray or plasma beam irradiation treatment simultaneously, intensively arraying the graphene oxide dispersion in the kettle under high temperature and high pressure environment, adding loofah fibers into the densely parallel micro-holes to obtain a graphene/lobe hybrid hydrogel; and (iv) subjecting hydrogel to supercritical carbon dioxide drying or freeze-drying. USE - The method is useful for preparing graphene/loofah hybrid aerogel. ADVANTAGE - The method produces product having conductivity of 1-3 orders of magnitude higher than that of a traditional hybrid aerogel, high intensity, good flexibility, easy operation, low cost and easy structural control; and is suitable for mass production. DETAILED DESCRIPTION - Preparing graphene/loofah hybrid aerogel, comprises (i) mixing loofah fiber with an alkaline solution, where the molar concentration of the alkaline solution is 0.001-6 mol/l, mixing treatment for 0.5-60 hours at 20-70 degrees C, washing the loofah fibers with deionized water until neutral and drying to obtain pretreated loofah fibers; (ii) mixing the pretreated loofah fiber with an oxidant solution having molar concentration of 0.001-6 mol/l, mixing treatment for 0.5-60 hours at 20-70 degrees C, washing the loofah fibers with deionized water until neutral and drying to obtain oxidized loofah fibers; (iii) adding graphene oxide dispersion to a hydrothermal reaction kettle, immersing oxidized loofah fiber in graphene oxide dispersion, heating the hydrothermal reaction kettle, subjecting to microwave, ultraviolet rays, gamma ray or plasma beam irradiation treatment simultaneously, intensively arraying the graphene oxide dispersion in the kettle under high temperature and high pressure environment, adding loofah fibers into the densely parallel micro-holes to obtain a graphene/lobe hybrid hydrogel; and (iv) subjecting the hydrogel to supercritical carbon dioxide drying or freeze-drying.