Tannic acid modified graphene/gelatin porous composite material and preparation method and application thereof
The invention belongs to the technical field of dye adsorbents and relates to a tannic acid modified graphene/gelatin porous composite material and a preparation method and application thereof. The preparation method includes the steps of 1), mixing tannic acid, oxidized graphene and deionized water...
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| Format: | Patent |
| Sprache: | chi ; eng |
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| Zusammenfassung: | The invention belongs to the technical field of dye adsorbents and relates to a tannic acid modified graphene/gelatin porous composite material and a preparation method and application thereof. The preparation method includes the steps of 1), mixing tannic acid, oxidized graphene and deionized water for reaction at the temperature of 80-90DEG C, and then performing solid-liquid separation to obtain tannic acid modified graphene; 2), mixing the tannic acid modified graphene, gelatin and the deionized water to obtain a tannic acid modified graphene/gelatin mixture; 3), dropping the tannic acid modified graphene/gelatin mixture into ice water to obtain tannic acid modified graphene/gelatin microspheres; 4), subjecting the tannic acid modified graphene/gelatin microspheres and a cross-linkingagent to cross-linking reaction to obtain the tannic acid modified graphene/gelatin porous composite material after freeze drying. The tannic acid modified graphene/gelatin porous composite material has good adsorption effect |
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