A ceramic photocatalytic support structure based on additive manufacturing

Abstract

The invention relates to a ceramic photocatalytic carrier structure based on additive manufacturing. The ceramic photocatalytic carrier structure comprises a carrier base body and an ordered porous carrier, wherein the carrier base body comprises a base layer and multiple stagger layers; the base layer is obtained in a manner that spatial regular tetrahedrons serve as elements in three-dimensionalspace and are subjected to deflection design, the stagger layers are obtained in a manner that surrounding-type symmetric-space regular-tetrahedron reticular single layer structures are converted andpiled in the axial direction, the conversion content is that the height and the diameter of grids are changed, the piling manner is that a base-layer center shaft serves as a rotating center, staggerpiling is conducted according to the deflection angle phi in the anticlockwise direction or the clockwise direction, and the multiple stagger layers are obtained; the carrier base body is manufactured with the 3D printing technology, and the ordered porous carrier is a microcosmic mesopore on the carrier base body. According to the ceramic photocatalytic carrier structure based on additive manufacturing, through the carrier base body, the using rate of light rays can be increased, the distribution characteristics of light rays are improved, the 3D printing technology is used as a manufacturing technology of the carrier base body, the bottleneck that defects exist in the carrier structure is broken, the production cost and the using cost are reduced, and the ceramic photocatalytic carrierstructure can be applied and popularized on a large scale.

Description

technical field [0001] The invention relates to the technical field of additive manufacturing, in particular to a ceramic photocatalytic carrier structure based on additive manufacturing. Background technique [0002] Studies have found that photocatalysts can produce strong redox capabilities under the action of ultraviolet rays, and can catalyze the decomposition of various organic and some inorganic substances attached to the physical surface, and the degradation products are non-polluting. However, photocatalysts have not been widely used in the field of indoor air pollution treatment technology. The main reason is that there are many limiting factors in the loading method of photocatalysts: [0003] (1) The suspension method has problems such as poor dispersion of photocatalyst particles and difficulty in recycling; [0004] (2) The fixed method loading technology makes up for the shortcomings of the suspension method, but there are still many deficiencies in the three...

AI Technical Summary

Problems solved by technology

However, photocatalysts have not been widely used in the field of indoor air pollution treatment technology. The main reason is that there are many limiting factors in the loading method of photocatalysts:

[0003] (1) The suspension method has problems such as poor dispersion of photocatalyst particles and difficulty in recycling;

[0004] (2) The fixed method loading technology makes up for the shortcomings of the suspension method, but there are still many deficiencies in the three commonly used carrier structures, so that the reaction efficiency is low:

[0006] ② Disordered porous structure: it hinders the transmission of light, receives insufficient light, and has a small effective reaction area;

[0007] ③Ordered honeycomb structure: The more porous structure has a smaller specific surface area, and the arrangement of light sources is more cumbersome

However, at present, the preparation of porous ceramic materials mostly adopts mold molding, which can only prepare parts with simple structures, and cannot optimize the shape and structure, which limits the application.

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