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Metal oxide/TiO2 nanocatalyst and preparation method thereof

A nano-catalyst and oxide technology, applied in the direction of metal/metal oxide/metal hydroxide catalyst, physical/chemical process catalyst, chemical instrument and method, etc., to achieve the effect of simple equipment, stable structure and easy preparation

Inactive Publication Date: 2014-05-28
FUZHOU UNIV
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

So far, no porous material can match MOFs in terms of richness of channels and the diversity and diversity of materials.

Method used

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  • Metal oxide/TiO2 nanocatalyst and preparation method thereof
  • Metal oxide/TiO2 nanocatalyst and preparation method thereof
  • Metal oxide/TiO2 nanocatalyst and preparation method thereof

Examples

Experimental program
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Effect test

Embodiment 1

[0034] Preparation of Metal Oxide / TiO with Complementary Metal-Organic Compound Structure Using Metal-organic Copper Tricarboxylate (CuBTC) as Template and Titanium Isopropoxide as Titanium Source 2 nanocatalysts.

[0035] (1) Synthesis of template: Mix copper nitrate trihydrate aqueous solution and trimesic acid / ethanol solution (volume ratio 1:1) and transfer to a hydrothermal kettle to react at 80°C for 10 hours; dissolve the product obtained above in two In the methyl chloride solvent, after centrifugation at room temperature for 3 times, the metal-organic compound precipitated from the lower layer was dried for 12 hours at 100° C., the centrifugation process was selected at a speed of 4000 rpm, and the centrifugation time was 2 minutes;

[0036](2) Introduction of titanium source: heat the above product to 140°C under vacuum and keep it for 18 hours. After cooling down to room temperature, add 10ml of titanium isopropoxide to 2g of the product, and continue vacuuming, mai...

Embodiment 2

[0041] Preparation of Metal Oxide / TiO with Complementary Metal-Organic Compound Structure Using Metal-organic Copper Tricarboxylate (FeBDC) as Template and Titanium Isopropoxide as Titanium Source 2 nanocatalysts.

[0042] (1) Synthesis of the template: Mix ferric chloride hexahydrate aqueous solution with terephthalic acid / N,N-dimethylformamide solution (volume 15 mL) and transfer to a hydrothermal kettle to react at 120°C for 7 hours; The product obtained above was soaked in ethanol at 60°C for 3 hours, centrifuged for 3 times, and the metal organic compound precipitated from the lower layer was dried at 60°C for 24 hours. During the centrifugation process, the rotation speed was 4500 rpm, and the centrifugation time was 1 minute;

[0043] (2) Introduce titanium source: heat the above product to 250°C under vacuum and keep it for 12 hours. After cooling down to room temperature, add 4 ml titanium isopropoxide to 600 mg product, and continue vacuuming. The dynamic vacuum time...

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Abstract

The invention discloses a metal oxide / TiO2 nanocatalyst and a preparation method thereof. The method takes a metal organic compound as a template and comprises the steps of introducing a titanium source, hydrolyzing the titanium source and removing the template to prepare the metal oxide / TiO2 nanocatalyst, wherein the metal organic compound is one of CuBTC, MIL-101(Cr) or MIL-101(Fe); the titanium source is isopropyl titanate or butyl titanate. Through the preparation method, the metal organic compound is introduced as a template agent, so that the template agent has the advantages of being convenient to prepare, simple and available, and easy to remove in a later stage; according to the key point, pore diameters of the template can be flexibly adjusted by changing the type and the number of ligands, so that a TiO2 material with different pore diameters, a complementary structure of the metal organic compound and a high specific surface can be prepared; the TiO2 prepared by the method has a good structure and a great specific surface area and can realize breakthrough of application of the TiO2 in various fields.

Description

technical field [0001] The invention belongs to the field of high specific surface area catalyst preparation, in particular to a metal oxide / TiO 2 Nanocatalyst and its preparation method. Background technique [0002] TiO 2 It is an indispensable inorganic functional material. It is widely used in many fields such as new energy batteries, purification and sensitive sensors because of its low cost, non-toxic stability and strong oxidation. Studies have shown that TiO prepared after certain treatment 2 Photocatalyst, which has remarkable effects in the degradation of organic matter, air purification and treatment of polluted water, which is also the 2 One of the reasons why it has become a popular functional material in recent years. However, the TiO prepared by prior art 2 The specific surface area it has does not meet the requirements of the experiment, so finding a method that can increase its specific surface area is useful for broadening the TiO 2 The further applic...

Claims

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Application Information

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IPC IPC(8): B01J23/72B01J23/745B01J23/26
Inventor 汤儆江莉龙戚鑫鑫王曼清曹彦宁
Owner FUZHOU UNIV
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