Preparation method of titanium dioxide and titanium carbide loaded carbon fiber composite catalytic functional material

A functional material, titanium dioxide technology, applied in chemical instruments and methods, physical/chemical process catalysts, chemical/physical processes, etc., to achieve the effects of excellent performance, easy separation, industrial production and engineering application

Active Publication Date: 2020-04-21
CENT SOUTH UNIV
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

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Problems solved by technology

[0004] Titanium carbide is generated on the surface of carbon fiber, and titanium carbide is converted into titanium dioxide to obtain titanium dioxide and titanium carbide-loaded carbon fiber composite catalytic functional materials, which have not been reported in the relevant literature.

Method used

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  • Preparation method of titanium dioxide and titanium carbide loaded carbon fiber composite catalytic functional material
  • Preparation method of titanium dioxide and titanium carbide loaded carbon fiber composite catalytic functional material

Examples

Experimental program
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Effect test

Embodiment 1

[0048] 1) First, remove the glue on the carbon fiber to obtain a single dispersed fiber. Use a Soxhlet extractor to hold the fiber bundle coated with resin, and use acetone steam to reflux back and forth to wash off the resin on the fiber surface. The temperature is controlled at 80°C and the time is controlled. At 72h, take out the fibers, dry them in vacuum at 105°C for 24h in a vacuum oven, and take them out for use;

[0049] 2) Titanium hydride powder and KCl (analytical pure) particles are fully mixed in the sample mixer, Ti:C=0.5 (molar ratio), the amount of KCl added is 10 times the mass of the reactant, and the carbon fibers are dispersed in titanium hydride and KCl Put the alumina crucible into the alumina crucible, put the alumina crucible in the tube furnace, pass in argon as the protective gas, program the temperature rise, the heating rate is 10°C / min, and the temperature is raised to 1000°C. Keep warm at 1000°C for 3 hours, cool down to room temperature, and cont...

Embodiment 2

[0055] 1) First, remove the glue on the carbon fiber to obtain a single dispersed fiber. Use a Soxhlet extractor to hold the fiber bundle coated with resin, and use acetone steam to reflux back and forth to wash off the resin on the fiber surface. The temperature is controlled at 80°C and the time is controlled. At 72h, take out the fibers, dry them in vacuum at 105°C for 24h in a vacuum oven, and take them out for use;

[0056] 2) Titanium hydride powder and KCl (analytical pure) particles are fully mixed in the sample mixer, Ti: C = 1.0 (molar ratio), the amount of KCl added is 10 times the mass of the reactant, and the carbon fibers are dispersed in titanium hydride and KCl Put the alumina crucible into the alumina crucible, put the alumina crucible in the tube furnace, pass in argon as the protective gas, program the temperature rise, the heating rate is 10°C / min, and the temperature is raised to 1000°C. Keep warm at 1000°C for 3 hours, cool down to room temperature, and c...

Embodiment 3

[0062] Other conditions are the same as in Example 1, except that titanium hydride powder is replaced by titanium powder. After testing, the catalytic degradation rate of the sample obtained in Example 2 is 50% in 200 minutes.

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Abstract

The invention relates to a preparation method of a titanium dioxide and titanium carbide loaded carbon fiber composite catalytic functional material. The preparation method comprises the following steps: (1) with carbon fibers (CFs) as a carbon raw material, carrying out degumming treatment on the carbon fibers by using a Soxhlet extraction method to obtain single dispersed fibers; (2) with titanium hydride as a titanium raw material, allowing porous titanium carbide to grow on the surface of the carbon fibers through a molten salt method; (3) partially converting titanium carbide grown on thesurface of the carbon fibers into sodium titanate by using a sodium hydroxide hydrothermal method; and (4) carrying out acid treatment and heat treatment to obtain the CFs-coated TiC/TiO2 composite catalytic functional material. The preparation method is simple in process, a material structure is easy to control, and the prepared composite material is excellent in performance and convenient for industrial production and application.

Description

technical field [0001] The invention discloses a method for preparing titanium dioxide and titanium carbide-supported carbon fiber composite catalytic functional materials, belonging to the technical field of composite material preparation. Background technique [0002] The application of titanium dioxide as a photocatalyst has attracted the attention and research of many researchers. This is mainly due to the advantages of high speed, no selectivity, complete degradation, etc. Non-toxic and other aspects are superior to traditional chemical oxidation methods, therefore, it has broad application prospects in environmental pollution control. The catalytic activity of titanium dioxide is often closely related to its microscopic scale and morphology. The research on micro / nanoscale titanium dioxide has received extensive attention, but it also brings difficulties to the recovery and secondary reuse of titanium dioxide, especially the high cost. In addition, micro-nano-scale ti...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): B01J27/22B01J35/06B01J35/10
CPCB01J27/22B01J35/004B01J35/06B01J35/1004
Inventor 张福勤吕波王小明
Owner CENT SOUTH UNIV
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