NOVELTY - An immobilization apparatus (1) of carbon dioxide has micro reactor (10) provided with micro flow path (4) through which gas raw material and liquid raw material circulates as reaction raw material, gas raw material supplying unit, liquid raw material supplying unit and photocatalyst layer (5). The gas and liquid raw material supplying units supplies gas raw material and liquid raw material into the micro flow path. The gas raw material is carbon dioxide, and the liquid raw material is raw material reacting with carbon dioxide and capable of generating organic compound.    USE - Carbon-dioxide immobilization apparatus.    ADVANTAGE - The carbon-dioxide immobilization apparatus performs highly efficient photocatalytic reaction, and produces carbon-dioxide reduction product in high yield.    DETAILED DESCRIPTION - An immobilization apparatus of carbon dioxide has a micro reactor provided with a micro flow path through which gas raw material and liquid raw material circulates as reaction raw material, a gas raw material supplying unit, a liquid raw material supplying unit and a photocatalyst layer. The gas and liquid raw material supplying units supplies gas raw material and liquid raw material into the micro flow path. The photocatalyst layer is provided in inner surface of micro flow path. The gas raw material is carbon dioxide, and the liquid raw material is raw material reacting with carbon dioxide and capable of generating organic compound. The gas and liquid raw material supplying units are comprised such that formation of pipe flow is set of the state into which the liquid raw material flows along inner surface of micro flow path, and carbon dioxide flows through center portion. An INDEPENDENT CLAIM is included for immobilization method of carbon dioxide, which involves subjecting gas raw material and liquid raw material to photocatalytic reaction in photocatalytic layer, and generating organic compound by fixing carbon dioxide.    DESCRIPTION OF DRAWING(S) - The drawing shows the perspective view of carbon-dioxide immobilization apparatus.    Carbon-dioxide immobilization apparatus (1)    Substrate (2)    Top plate (3)    Micro flow path (4)    Photocatalyst layer (5)    Micro reactor (10)