▎ 摘　　要

NOVELTY - Preparing photocatalytic honeycomb carbon-based complex material comprises (i) dissolving the activated carbon binder in water and stirring into a uniform suspension, (ii) mixing powdery activated carbon, multi-walled carbon nanotubes, multilayer graphene and graphite phase carbon nitride to obtain a mixed raw material, (iii) kneading the mixed raw materials and the suspension to obtain plastic mud having a uniform composition, (iv) vacuuming the mud, and placing the prepared plastic mud in a vacuum sludge smelting machine to obtain plastic mud with uniform water distribution, (v) placing mud material in the silo of the 3D printer, (vi) placing the printed honeycomb carbon-based complex material in a vacuum drying oven, (vii) ultrasonically dispersing P25 type titanium dioxide nanoparticles into a suspension, completely immersing the prepared honeycomb carbon-based complex material in a suspension, and drying, dipping and drying again. USE - The method is useful for preparing photocatalytic honeycomb carbon-based complex material. ADVANTAGE - The complex material: meets the needs of different occasions, has high safety, excellent stability, and low energy consumption; is economical. DETAILED DESCRIPTION - Preparing photocatalytic honeycomb carbon-based complex material comprises (i) dissolving the activated carbon binder in water and stir into a uniform suspension with a mass fraction of 5-20%, (ii) mixing powdery activated carbon, multi-walled carbon nanotubes, multilayer graphene and graphite phase carbon nitride according to a mass percentage to obtain a mixed raw material, (iii) kneading the mixed raw materials and the suspension according to a mass ratio of 2-5:1 to obtain plastic mud having a uniform composition, (iv) vacuuming the mud, and placing the prepared plastic mud in a vacuum sludge smelting machine for 0.5-1 hours to obtain plastic mud with uniform water distribution, (v) placing mud material in the silo of the 3D printer, where the pressure is 4-8 MPa by the air compressor to extrude the mud. The print nozzle has a diameter of 0.4-1.2 mm and a printing speed of 10-30 mm/seconds, Honeycomb carbon-based complex materials of different shapes and sizes, quadrilateral, cylindrical, hexagonal, etc., can be printed by 3D printing technology, (vi) placing the printed honeycomb carbon-based complex material in a vacuum drying oven at 40-80 degrees C for 6-12 hours, (vii) ultrasonically dispersing P25 type titanium dioxide nanoparticles into a suspension, completely immersing the prepared honeycomb carbon-based complex material in a suspension for 5-15 minutes, and drying in a vacuum oven at 40-80 degrees C for 2-6 hours, dipping and drying again, and repeating for 2-5 times. The raw materials required for 3D printing consist comprises 40-60 wt.% powdery activated carbon, are 15-30 wt.% multi-walled carbon nanotubes, 10-20 wt.% multi-layer graphene, and 5-15 wt.% graphite phase carbonitride.