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A kind of metal oxide/tio2 nanometer catalyst 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: 2016-01-06
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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  • A kind of metal oxide/tio2 nanometer catalyst and preparation method thereof
  • A kind of metal oxide/tio2 nanometer catalyst and preparation method thereof
  • A kind of metal oxide/tio2 nanometer catalyst and preparation method thereof

Examples

Experimental program
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Effect test

Embodiment 1

[0034] Metal-organic compound copper trimesate (CuBTC) was used as template and titanium isopropoxide was used as titanium source to prepare metal oxide / TiO with complementary structure of metal-organic compound 2 nanocatalysts.

[0035] (1) Synthesis of template: Mix copper nitrate trihydrate aqueous solution with trimesic acid / ethanol solution (volume ratio 1:1) and transfer to a hydrothermal kettle for 10 hours at 80°C; 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 at 100°C for 12 hours, the centrifugation process was selected at a speed of 4000 rpm, and the centrifugation time was 2 minutes;

[0036](2) Introduce 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 to ma...

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 templates: Mix ferric chloride hexahydrate aqueous solution with terephthalic acid / N,N-dimethylformamide solution (volume 15mL) and transfer to a hydrothermal kettle for 7 hours at 120°C; 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) Introduction of titanium source: heat the above product to 250°C under vacuum, and keep it for 12 hours. After cooling down to room temperature, add 4ml of titanium isopropoxide to 600mg of the product, and continue vacuuming, maintaining a dynamic...

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Abstract

The invention discloses a metal oxide / TiO2 nanometer catalyst and a preparation method thereof. The method is to use a metal organic compound as a template, then introduce a titanium source, hydrolyze the titanium source, and remove the template to prepare a metal oxide / TiO2 nanometer catalyst. The metal organic compound is one of CuBTC, MIL-101(Cr) or MIL-101(Fe), and the titanium source is titanium isopropoxide or butyl titanate. The metal organic compound is introduced as a template, which has the advantages of convenient preparation, easy availability, and easy removal at a later stage. Among them, the most critical thing is that the pore size of the template can be flexibly adjusted by changing the type and number of ligands, so that high specific surface TiO2 materials with different pore sizes and metal-organic compound complementary structures can be prepared. The TiO2 prepared by the method of the invention has a better structure and a larger specific surface area, and can realize a breakthrough in its application in multiple 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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Patent Type & Authority Patents(China)
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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