▎ 摘　　要

NOVELTY - Composite catalytic material comprises porous three-dimensional reduced graphene oxide (3D-rGO), material institute Lavoisier -101 (iron)-amino based particle and platinum particles. The composite catalytic material has micron porous structure as whole. USE - The composite catalytic material is useful for degradation of straw extract microcrystalline cellulose (claimed). ADVANTAGE - The composite catalytic material: can efficiently degrade straw cellulose at a low temperature of 50 degrees C; is pure, easy to recycle, environmentally friendly and non-toxic; and has high catalytic efficiency, easy to obtain raw materials, higher selectivity for cellulose catalysis, milder catalytic conditions and broad application prospects in practical production. DETAILED DESCRIPTION - Composite catalytic material i.e. Pt/MIL-101 (Fe)-NH2/3D-rGO comprises porous three-dimensional reduced graphene oxide (3D-rGO), material institute Lavoisier -101 (iron)-amino based (MIL-101 (Fe)-NH2) particle and platinum particles. The MIL-101 (Fe)-NH2 and platinum particles are uniformly dispersed and supported on internal folds of porous three-dimensional reduced graphene oxide and the mass ratio of MIL-101 (Fe)-NH2 and platinum particles is 1:0.01-0.04. The composite catalytic material has micron porous structure as whole. INDEPENDENT CLAIMS are also included for (1) preparing composite catalytic material, comprising, preparing MIL-101 (Fe)-NH2/3D-rGO composite catalytic material and Pt/MIL-101 (Fe)-NH2)/3D-rGO composite catalytic material; and (2) use of catalytic material for degradation of straw extract microcrystalline cellulose, method comprising adding composite catalytic material into the alkaline solution of cellulose and performing catalytic degradation at 40-100 degrees C.