▎ 摘　　要

NOVELTY - Method for preparing light-driven photocatalytic reactor by (i) recrystallizing the N-isopropylacrylamide monomer with acetone, (ii) dissolving recrystallized N-isopropylacrylamide monomer in dimethyl sulfoxide, adding graphene oxide to the solution, and dispersing to obtain graphene oxide/N-isopropylacrylamide dispersion, (iii) dissolving the recrystallized N-isopropylacrylamide monomer in dimethyl sulfoxide, and adding photocatalyst and dispersing to obtain photocatalyst/N-isopropylacrylamide dispersion, (iv) injecting the dispersions into mold, and polymerizing to obtain graphene oxide-polyN-isopropylacrylamide hydrogel and poly-N-isopropylacrylamide hydrogel containing photocatalyst are denoted as GO-PNIPAAm and P-PNIPAAm, (v) soaking the graphene oxide-poly-N-isopropylacrylamide hydrogel in hydrazine hydrate solution to obtain reduced graphene oxide-N-isopropylacrylamide hydrogel denoted as rGO-PNIPAAm, and (vi) taking the P-PNIPAAm and connecting them together. USE - Method for preparing light-driven photocatalytic reactor used in photocatalysis application and producing hydrogen peroxide (all claimed). ADVANTAGE - The photocatalytic reactor reduces the energy loss in the case of non-perpendicular incidence of light, changes the traditional photocatalysis mode, solves the problem that the photocatalyst is not easy to recycle, and the method is simple and economical and has universal applicability and excellent commercialization prospects. DETAILED DESCRIPTION - Method for preparing light-driven photocatalytic reactor involves (i) recrystallizing the N-isopropylacrylamide monomer with a mixed solution of n-hexane and acetone, (ii) dissolving the recrystallized N-isopropylacrylamide monomer, N,N-methylenebisacrylamide and 2-hydroxy-2-methylpropiophenone obtained in the step (i) in dimethyl sulfoxide, adding graphene oxide to the solution, and dispersing to obtain a graphene oxide/N-isopropylacrylamide dispersion, (iii) dissolving the recrystallized N-isopropylacrylamide monomer, N,N-methylenebisacrylamide and 2-hydroxy-2-methylpropiophenone in dimethyl sulfoxide, and adding photocatalyst to the solution, and dispersing to obtain photocatalyst/N-isopropylacrylamide dispersion, (iv) injecting the dispersions obtained in the step (ii) and step (iii) into a mold, and polymerizing under UV light to obtain graphene oxide-poly-N-isopropylacrylamide hydrogel and Poly-N-isopropylacrylamide hydrogel containing photocatalyst are denoted as GO-PNIPAAm and P-PNIPAAm respectively, (v) soaking the graphene oxide-poly-N-isopropylacrylamide hydrogel obtained in the step (iv) in a hydrazine hydrate solution until the color of the hydrogel turns black to obtain reduced graphene oxide-N-isopropylacrylamide hydrogel denoted as rGO-PNIPAAm, and (vi) taking the P-PNIPAAm in the step (iv) and the rGO-PNIPAAm obtained in the step (v) and connecting them together, where P-PNIPAAm is located above the rGO-PNIPAAm to obtain the light-driven photocatalytic reactor. An INDEPENDENT CLAIM is included for a method for producing hydrogen peroxide involving using the light-driven photocatalytic reactor as the reactor, where the photocatalyst comprises cadmium sulfide/reduced graphene oxide.