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A preparation method of photocatalytic devices with 3D printed skeleton@tin dioxide/tin tungstate

A 3D printing and tin dioxide technology, applied in the direction of coating, etc., can solve the problems of catalyst easy to fall off, high loading rate, difficult to recycle, etc., and achieve the effect of simple and efficient preparation method and improved service life

Active Publication Date: 2021-12-31
FUJIAN NORMAL UNIV
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

However, most of the photocatalysts are powders at present, and the difficulty of recycling has become a major problem that limits their application. Deviceization is a feasible way to solve this problem.
[0003] At present, there are many methods for realizing deviceization, such as coating catalysts on the surface of various materials. CN201510118618.2 and CN201510118543.8 disclose the preparation method and coating method of two photocatalytic coating agents. This method has a higher loading rate. But it is more complex, and the immobilized catalyst is easy to fall off
There are also various photocatalytic materials that are directly melt-blended with polymer materials. This method is relatively simple, but most of the catalyst is coated inside the polymer, resulting in waste

Method used

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  • A preparation method of photocatalytic devices with 3D printed skeleton@tin dioxide/tin tungstate
  • A preparation method of photocatalytic devices with 3D printed skeleton@tin dioxide/tin tungstate
  • A preparation method of photocatalytic devices with 3D printed skeleton@tin dioxide/tin tungstate

Examples

Experimental program
Comparison scheme
Effect test

Embodiment 1

[0026] 3D printing method of preparing a skeletal @ tin dioxide / photocatalyst tin tungstate device to perform the following steps:

[0027] (1) ABS, chlorella and dried in vacuo 12h, after taking said ABS dried (700 g of), Chlorella (299.5 g of) and white oil (0.5g), placed in a high speed kneader, rotation speed 1000 rpm for holding, high-speed after stirring for 5min fed into a twin-screw extruder, the extrusion temperature was set to 160 ℃, 170 ℃, 175 ℃, 180 ℃, 195 ℃, 195 ℃, 190 ℃, 185 ℃, 170 ℃, 165 ℃, a twin-screw melting and plasticizing the melt chamber at a rotational speed of 150 rpm, extrusion material, the extruded material lines into the cold water tank there, fully cooled with water; rolling line into the tractor, to give 3D printing wire.

[0028] (2) The above 3D printing wire, through the 3D printer (FDM) printed volume 1cm 3 Twenty four spirochetes (see figure 1 ), 3D printer parameters: temperature of the print 185 ℃, bottom temperature of 60 ℃, print speed of 5...

Embodiment 2

[0033] 3D printing method of preparing a skeletal @ tin dioxide / photocatalyst tin tungstate device to perform the following steps:

[0034] (1) The PA, alginic residue was dried in vacuo 12h, after taking said PA dried (650g), algae residue (347 g) and white oil (3G), placed in a high speed kneader, rotation speed 1000 rpm for holding, high-speed stirring into 5min to a twin-screw extruder, the extrusion temperature was set to 170 ℃, 180 ℃, 185 ℃, 190 ℃, 205 ℃, 205 ℃, 195 ℃, 185 ℃, 170 ℃, 165 ℃, melted in a twin-screw melt chamber speed of 150 rpm and is plasticized, extruded material, the extruded material lines into the cold water tank there, fully cooled with water; rolling line into the tractor, to give 3D printing wire.

[0035] (2) the wire, through the 3D printer (FDM) printed volume 1cm 3 Twenty four spirochetes ( figure 1 ), 3D printer parameters: temperature of the print 190 ℃, bottom temperature of 60 ℃, print speed of 50mm / s, the printing thickness of 0.2mm.

[003...

Embodiment 3

[0039] 3D printing method of preparing a skeletal @ tin dioxide / photocatalyst tin tungstate device to perform the following steps:

[0040] (1) The PA, alginic residue was dried in vacuo 12h, after taking said PA dried (650g), algae residue (347 g) and white oil (3G), placed in a high speed kneader, rotation speed 1000 rpm for holding, high-speed stirring into 5min to a twin-screw extruder, the extrusion temperature was set to 170 ℃, 180 ℃, 185 ℃, 190 ℃, 205 ℃, 205 ℃, 195 ℃, 185 ℃, 170 ℃, 165 ℃, melted in a twin-screw melt chamber speed of 150 rpm and is plasticized, extruded material, the extruded material lines into the cold water tank there, fully cooled with water; rolling line into the tractor, to give 3D printing wire

[0041] (2) the wire, through the 3D printer (FDM) printed volume 1cm 3 Twenty four spirochetes ( figure 1 ), 3D printer parameters: temperature of the print 195 ℃, bottom temperature of 60 ℃, print speed of 50mm / s, to print a layer thickness of 0.1mm. .

...

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Abstract

The invention discloses a preparation method of a photocatalytic device of 3D printing framework@tin dioxide / tin tungstate. Skeleton parts with different structures; (2) Hydrothermal synthesis of tin tungstate on the surface of the 3D printed skeleton. The photocatalytic device of the invention has the advantages of high photocatalytic efficiency, easy recovery, low cost, simple preparation process and the like. It can be applied to the photocatalytic degradation treatment of organic pollutants in sewage, air and soil.

Description

Technical field [0001] The present invention belongs to the waste water, waste gas treatment environmental protection, in particular to a method for preparing a photocatalyst 3D printing device skeleton @ tin dioxide / tin tungstate. Background technique [0002] With the rapid progress of industrialization, heavy light green economy development model caused environmental pollution of air, water and soil. The problem for the sustainable development of human society poses a major challenge, it is imperative to solve environmental problems. Where water pollution is an extremely important aspect. Many water pollution treatment method, wherein the photocatalytic technology is a new energy efficient way to solve the problem of environmental pollution, which uses photocatalytic degradation of toxic and hazardous substances, provides a very environmentally friendly pollution control methods. But now most of the photocatalyst powder, hard recovery as a viable way to limit its application...

Claims

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Application Information

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Patent Type & Authority Patents(China)
IPC IPC(8): C08J7/06B29C48/05C08L55/02C08L51/00C08L25/06C08L59/00C08L69/00C08L61/16C08L77/00
CPCC08J7/06B29C48/05C08J2355/02C08J2351/00C08J2325/06C08J2359/00C08J2369/00C08J2361/16C08J2377/00
Inventor 杨松伟张孟丽夏新曙黄宝铨肖荔人杨裕金曾令兴陈庆华钱庆荣
Owner FUJIAN NORMAL UNIV