▎ 摘　　要

NOVELTY - Preparing zeolitic imidazolate framework-67 reduced graphene oxide absorbing composite material CoC-reduced graphine oxide comprises e.g. performing ultrasonic treatment to obtain graphene oxide solution and drying to obtain graphene oxide powder, adding graphene oxide powder, cobalt salt into absolute ethanol at room temperature, ultrasonically dispersing, centrifugal washing, vacuum drying to obtain intermediate cobalt-graphine oxide (Co2+-Go), where mass ratio between cobalt salt and graphene oxide is 1-6:1, adding Co2+-Go with cobalt salt at room temperature, adding dimethyl imidazole into anhydrous methanol, mechanically stirring for 1-6 hours, allowing to stand, filtering and vacuum drying to obtain intermediate zeolitic imidazolate framework-67- graphine oxide, where molar ratio between cobalt salt and 2-methylimidazole is 1:1-3; placing the intermediate zeolitic imidazolate framework-67-graphine oxide in a ceramic ark. USE - The method is useful for preparing zeolitic imidazolate framework-67 reduced graphene oxide absorbing composite material CoCrGo. ADVANTAGE - The material: has excellent product performance and absorbing performance; and is suitable for industrial production. DETAILED DESCRIPTION - Preparing zeolitic imidazolate framework-67 reduced graphene oxide absorbing composite material (CoCrGo) comprises (i) performing ultrasonic treatment to obtain graphene oxide solution and drying to obtain graphene oxide powder, (ii) adding graphene oxide powder, cobalt salt into absolute ethanol at room temperature, ultrasonically dispersing, centrifugal washing, vacuum drying to obtain intermediate cobalt-graphine oxide (Co2+-Go), where mass ratio between cobalt salt and graphene oxide is 1-6:1, (iii) adding Co2+-Go with cobalt salt at room temperature, adding dimethyl imidazole into anhydrous methanol, mechanically stirring for 1-6 hours, allowing to stand, filtering and vacuum drying to obtain intermediate zeolitic imidazolate framework-67- graphine oxide, where molar ratio between cobalt salt and 2-methylimidazole is 1:1-3; and mass ratio between cobalt salt and Co2+-Go is 4:1.5-0.25, and (iv) placing the intermediate zeolitic imidazolate framework-67-graphine oxide in a ceramic ark, then adding into a tube furnace and then calcining at 500-1000 degrees C for 200-400 minutes under inert atmosphere to obtain final product.