High-capacity carbon sequestration biological material derived from oyster shells and preparation method of high-capacity carbon sequestration biological material

The invention relates to a high-capacity carbon sequestration biological material derived from oyster shells and a preparation method of the high-capacity carbon sequestration biological material, and belongs to the field of biological materials. The preparation method comprises the following steps: by taking a byproduct oyster shell of mariculture oysters as a raw material, crushing the oyster shell to obtain oyster shell powder, mixing the oyster shell powder with a caustic soda aqueous solution, performing mechanochemical treatment in a ball mill, cleaning and drying a wet material, and performing microwave thermal decomposition in a microwave rapid ashing furnace to prepare the high-capacity carbon sequestration biological material with high activity and high specific surface area. The high-capacity carbon sequestration biological material is rich in raw material source, low in cost, simple in preparation process flow, energy-saving and environment-friendly, not only realizes resource utilization of the o