To provide an activated carbonized material which opens the way to effectively utilize cock feathers generated in large quantities every year, has a large specific surface area and a pore distribution based on mesopores of 2-50 nm, and is suitable for use as a gas phase adsorbent suitable for deodorization, purification, gas separation and the like, as a liquid phase adsorbent suitable for wastewater treatment, water purification and the like, as an enzyme and microorganism immobilization carrier, and as a material of a large-current and large-capacity electric storage device.
The activated carbonized material is obtained by impregnating an alkali solution into a crushed product of cock feathers having an average diameter of 50-2,000 μm and subjecting the crushed product to activation carbonization treatment at 700-850°C in an inert gas atmosphere. The activated carbonized material has a specific surface area of 2,300-3,200 m2/g, a mesopore (whose width is 1.5-2.5 nm) volume of 1-2 mL/g and an average pore diameter of 1-3 nm.
ITO KAZUO
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