▎ 摘　　要

NOVELTY - Device for preparing methanol by graphene macroscopic material photocatalytic reduction of carbon dioxide, comprises a reaction tank (1), where the inner wall of reaction tank is provided with multiple ultraviolet lamps (6). The reaction tank is internally provided with a reaction flask (3) for holding solution medium (2). The reaction flask bottom is set with a heater (4) for heating the solution medium. The upper part of reaction flask is set with a condenser. The condenser is set with a condensate collection tank. The lower part of the reaction flask is set with carbon dioxide cylinder. USE - The device is useful for preparing methanol by graphene macroscopic material photocatalytic reduction of carbon dioxide (claimed). ADVANTAGE - The device has high efficiency and produces high methanol yield. DETAILED DESCRIPTION - Device for preparing methanol by graphene macroscopic material photocatalytic reduction of carbon dioxide, comprises a reaction tank, where the inner wall of the reaction tank is provided with multiple ultraviolet lamps. The reaction tank is internally provided with a reaction flask for holding solution medium. The bottom of the reaction flask is provided with a heater for heating the solution medium. The upper part of the reaction flask is connected with a condenser. The condenser is connected with a condensate collection tank. The lower part of the reaction flask is connected to the carbon dioxide cylinder located outside the reaction tank through a carbon dioxide conduit. The reaction flask is provided with a porous separator. The porous separator is set with catalyst filler. The carbon dioxide conduit is set with a flow rate adjusting valve. An INDEPENDENT CLAIM is also included for preparing methanol by graphene macroscopic material photocatalytic reduction of carbon dioxide using the device, comprising: (a) preparing graphene macroscopic material using anthracite coal; (b) preparing 0.05-0.15 mol/l sodium hydroxide-sodium sulfite mixed solution using deionized water as solvent; and (c) adding the sodium hydroxide-sodium sulfite mixed solution as a solution medium into the reaction flask, adding the graphene macroscopic material as a catalyst filler into the reaction flask, heating the solution medium via heater to 68-72 degrees C, passing carbon dioxide into the reaction flask using carbon dioxide gas cylinder with a flow rate of 50-150 ml/minute using flow rate control valve, turning on the ultraviolet lamp with a light intensity of 300-500 mu W/cm2 for photocatalytic reduction of carbon dioxide, collecting methanol in the condensate collection tank. DESCRIPTION OF DRAWING(S) - The diagram shows a schematic representation of the device for preparing methanol by graphene macroscopic material photocatalytic reduction of carbon dioxide. Reaction tank (1) Solution medium (2) Reaction flask (3) Heater (4) Ultraviolet lamp (6)