The invention discloses a method for preparing load type
activated carbon from
furfural residues and application of the load type
activated carbon. The
furfural residues are used as carbon sources, and pre-
carbonization, activation, nanometer
metal oxide impregnation and adsorption and recarbonization treatment are carried out on the
furfural residues. The method particularly includes steps of S1,carbonizing the furfural residues at the temperatures of 250-300 DEG C in
nitrogen atmosphere for 4-6 h; S2, carrying out activation, to be more specific, activating obtained black carbon residue,
potassium hydroxide and
potassium bicarbonate mixtures at the temperatures of 400-500 DEG C for 1-3 h, carrying out acid
pickling on activation products until the PH (potential of
hydrogen) of the activation products shows the activation products are neutral and carrying out
drying at the temperatures of 60 DEG C; S3, carrying out loading, to be more specific, dispersing composite nanometer
metal oxide in
microcrystalline cellulose sol to obtain mixed coated
sol, adding obtained
activated carbon into the mixed coated
sol, carrying out pressurization impregnation and adsorption for 1-3 h, carrying out
dehydration and then carrying out
carbonization again at the temperatures of 150-200 DEG C in
nitrogen atmosphere for 1-2 h. The method and the application have the advantages that the nanometermetal
oxide can be loaded in activated carbon structures by double means of sol
coating and impregnation and adsorption, the method is high in loading and low in
energy consumption, the nanometer
metal oxide can be completely supported, composite structures can be further reinforced in recarbonization procedures, and the stability can be improved.