To obtain an adsorbent for air purification which has excellent initial performance and can always have specified adsorption and removing performance without being influenced by the working environment by depositing a specified amt. of an acidic material, a basic material and an oxidizing agent on a specified activated carbon and then introducing a specified amt. of water to be held in the activated carbon material with deposition of the agents.
This adsorbent for air purification consists essentially of an activated carbon material prepared by depositing one of an acidic material, basic material and oxidizing agent, or an oxidizing agent and an acidic material or basic material by 1 to 30 pts.wt. on an activated carbon having 10 to 100 pore diameter and 0.25 to 1.1cc/g pore volume, and the activated carbon material holds 10 to 100 pts.wt. water content. The specified amt. of water preliminarily held in the activated carbon material with deposition of the agents has an effect to wet the deposited agents and an effect like a catalyst to smoothly effect the reaction of the objective material to be removed and the deposited agents. Thereby, specified adsorption and removing performance can be obtd. from the initial stage of operation without being influenced by the humidity of the air to be purified.
OKAWA KATSUMI
ITOU TATSUYA
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