Carbon material with high surface activity and preparation method thereof

The invention relates to an activated carbon materialand a preparation method thereof, in particular to a carbon material with high surface activity and a preparation method thereof. The carbon material with high surface activity is characterized by comprising the raw materials of petroleum coke, tar coke, lignite and husk. The preparation method of the carbon material with high surface activity is characterized by comprising the following steps: a) crushing the petroleum coke, tar coke, lignite and husk, sieving into 80-200-mesh powder, and carbonizing for 0.5-2.5h in a high temperature activating oven under the temperature of 500-620 DEG C; and b) and evenly mixing the carbonized materials with H2PO4 or ZnCl2 or a mixture of the above two in terms of the mass ratio of 1:1 in a mixer according to the mass ratio of 1:0.5-1:3, and reacting for 0.5-2h in a pre-activating oven under the temperature of 300-600 DEG C. Activation time of a product is lowered and the production efficiency is improved by using the carbon material with high surface activity and the preparation method thereof.