To solve problems of a conventional layered metal hydroxide: that, in order to efficiently eliminate carbon dioxide from the layered metal hydroxide, a high temperature condition (for example, a high temperature condition exceeding 400°C) is necessary, resulting in destruction of a layered structure of the layered metal hydroxide when eliminating carbon dioxide; and that, when the layered structure is destroyed, the layered metal hydroxide cannot adsorb and eliminate carbon oxide repeatedly.SOLUTION: A carbon dioxide adsorbent comprises an elimination-type layered metal hydroxide having an average particle size of 150 nm or less.SELECTED DRAWING: Figure 2
展开▼
