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Catalyst carrier and application thereof

A catalyst carrier, photocatalysis technology, applied in the direction of catalyst carrier, physical/chemical process catalyst, chemical instruments and methods, etc., can solve the problem of less active sites, and achieve the effect of improving catalytic activity and improving active sites.

Inactive Publication Date: 2015-01-28
SOUTHEAST UNIV
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

[0005] Technical issues solved: The present invention aims at the defect that the existing catalyst carrier has few active sites, and provides a catalyst carrier and its application in increasing the activity of precious metal ceramic catalyst body by photocatalysis

Method used

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  • Catalyst carrier and application thereof
  • Catalyst carrier and application thereof
  • Catalyst carrier and application thereof

Examples

Experimental program
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Effect test

Embodiment 1

[0033] (Step 1) Preparation of Catalyst Support α-Fe 2 o 3 / RGO solution: the catalyst carrier α-Fe 2 o 3 / RGO is dissolved in the mixed solution of water and methanol and stirred evenly, the concentration of the catalyst carrier is 0.1 mg / mL, and the volume ratio of water and methanol is 1:1;

[0034] (step 2) prepare the aqueous solution of chloroplatinic acid and surfactant PVP respectively, the concentration of the aqueous solution of described chloroplatinic acid is 50mg / mL, the concentration of the aqueous solution of described surfactant PVP is 45mg / mL, then equal volume The aqueous solution of chloroplatinic acid and surfactant PVP is injected in the catalyst carrier solution simultaneously, and wherein the mass ratio of chloroplatinic acid and catalyst carrier is 10:1, and the mass ratio of surfactant PVP and catalyst carrier is 5:1; At the same time, the solution was irradiated with visible light for 90 min.

[0035] (Step 3) Samples were taken at different time p...

Embodiment 2

[0037] (Step 1) Preparation of Catalyst Support α-Fe 2 o 3 / RGO solution: the catalyst carrier α-Fe 2 o 3 / RGO is dissolved in the mixed solution of water and methanol and stirred evenly, the concentration of the catalyst carrier is 5 mg / mL, and the volume ratio of water and methanol is 1:3;

[0038] (step 2) prepare the aqueous solution of chloroplatinic acid and surfactant PVP respectively, the concentration of the aqueous solution of described chloroplatinic acid is 100mg / mL, the concentration of the aqueous solution of described surfactant PVP is 80mg / mL, then equivolume The aqueous solution of chloroplatinic acid and surfactant PVP is injected in the catalyst carrier solution simultaneously, and wherein the mass ratio of chloroplatinic acid and catalyst carrier is 20:1, and the mass ratio of surfactant PVP and catalyst carrier is 10:1; The solution was irradiated with visible light for 90 min.

[0039] (Step 3) Samples were taken at different time periods of light, an...

Embodiment 3

[0041] (Step 1) Preparation of Catalyst Support TiO 2 / RGO solution: the catalyst carrier TiO 2 / RGO is dissolved in the mixed solution of water and methanol and stirred evenly, the concentration of the catalyst carrier is 10mg / mL, and the volume ratio of water and methanol is 3:1;

[0042] (step 2) prepare the aqueous solution of chloroplatinic acid and surfactant PVP respectively, the concentration of the aqueous solution of described chloroplatinic acid is 5mg / mL, the concentration of the aqueous solution of described surfactant PVP is 3mg / mL, then equal volume The aqueous solution of chloroplatinic acid and surfactant PVP is simultaneously injected in the catalyst carrier solution, wherein the mass ratio of chloroplatinic acid and catalyst carrier is 2:5, and the mass ratio of surfactant PVP to catalyst carrier is 1:10; The solution was irradiated with visible light for 90 min.

[0043] (Step 3) Samples were taken at different time periods of light, and then the decompos...

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Abstract

The invention discloses a catalyst carrier and application thereof. The catalyst carrier comprises metallic oxide and doped graphene, wherein the metallic oxide is a ceramic nano semiconductor material such as fiber-like alpha-Fe2O3, TiO2 or Al2O3. The catalyst carrier disclosed by the invention is simple and effective, and by using the catalyst carrier, the active locus of a metal catalyst can be improved by using a photocatalysis method. The ultraviolet spectrum testing shows that compared with a catalyst which is not radiated with light, the catalyst which is radiated with light is remarkably improved in catalytic activity.

Description

technical field [0001] The invention belongs to the technical field of noble metal ceramic catalysts, and in particular relates to a catalyst carrier and its application in increasing the activity of noble metal ceramic catalyst bodies by photocatalysis. Background technique [0002] Nano-precious metal catalysts have become a research hotspot in the world today, because they have the advantages of large specific surface area, high surface energy, short diffusion channels in the crystal, many catalytic active sites on the surface, and strong adsorption capacity, which can control the reaction rate, such as Pt nanoparticles; However, in the preparation method, the polyol method is widely used to prepare Pt nanoparticles, wherein the Pt raw material is chloroplatinate hexahydrate, the reducing agent is ethylene glycol, and the surfactant is polyvinylpyrrolidone (PVP). PVP coated on the surface of Pt nanoparticles can stabilize the Pt nanoparticles. However, the more surfactan...

Claims

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Application Information

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IPC IPC(8): B01J32/00B01J23/89B01J23/42
Inventor 代云茜柴蕴玲符婉琳王世梅施炜晗孙岳明
Owner SOUTHEAST UNIV
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