▎ 摘　　要

NOVELTY - The utility model claims a new light catalytic reactor system, comprising a light source subsystem and sampling subsystem, and a reaction subsystem, the light source subsystem is provided with an LED light source, a reaction subsystem graphene coated with catalyst, harmful gas sampling subsystem, entering the reaction subsystem under the irradiation of LED light source, graphene catalyst catalyzing and decomposing the harmful gas. The reactor system can prolong the polluted gas residence time inside the reactor contacting the contaminated gas with a catalyst for a time sufficient, and graphene has outstanding heat conductivity, conductivity and mechanical performance, excellent strong specific surface area, adsorptivity, can firstly absorb the polluted gas around the catalyst, and then light degradation.