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Preparation method and application of magnetic mesoporous titanium dioxide composite material

A technology of mesoporous titanium dioxide and composite materials, applied in chemical instruments and methods, oxidized water/sewage treatment, metal/metal oxide/metal hydroxide catalysts, etc., can solve problems such as mechanical instability and inconvenient recycling of catalysts , to achieve the effects of promoting adsorption and enrichment, good stability and durability, and increasing the generation rate

Active Publication Date: 2021-07-09
苏州兴华高新材料科技有限公司
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

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Problems solved by technology

[0004] In view of the above-mentioned shortcoming of prior art, the object of the present invention is to provide a kind of preparation method of magnetic mesoporous titania composite material and its application, for solving the problem of the ability of general ultrasonic catalyst in the prior art to be subjected to sound waves in the catalytic process. Problems affecting mechanical instability and inconvenient recovery of catalysts

Method used

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  • Preparation method and application of magnetic mesoporous titanium dioxide composite material
  • Preparation method and application of magnetic mesoporous titanium dioxide composite material
  • Preparation method and application of magnetic mesoporous titanium dioxide composite material

Examples

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Effect test

Embodiment 1

[0086] 3.25g of FeCl 3 ·6H 2 The sodium acetate (NaAc) of O, 6.0g and the sodium citrate of 1.3g are dissolved in the ethylene glycol solution of 80mL, after sonication 1h, obtain the FeCl-containing 3 The solution. will contain FeCl 3 The solution was poured into a Teflon-lined stainless steel autoclave with a capacity of 100 mL, heated at 200 °C for 10 h, and then cooled to room temperature to obtain Fe 3 o 4 Magnetite particles. Will Fe 3 o 4 The magnetite particles were washed three times with deionized water and ethanol, respectively, and dispersed in 50 mL of ethanol to obtain Fe 3 o 4 Ethanol dispersion of particles.

[0087] Dilute 3.0mL to a concentration of 0.05gmL -1 Fe 3 o 4 The ethanol dispersion of the particles was added into a three-neck round bottom flask, and the concentration of 100mL of ethanol and 0.4mL of ammonia water of 28wt% was added successively to obtain an Fe-containing 3 o 4 solution of particles. Then, in the state of magnetic stir...

Embodiment 2

[0092] 3.25g of FeCl 3 ·6H 2 The sodium acetate (NaAc) of O, 6.0g and the sodium citrate of 1.3g are dissolved in the ethylene glycol solution of 80mL, after sonication 1h, obtain the FeCl-containing 3 The solution. will contain FeCl 3 The solution was poured into a Teflon-lined stainless steel autoclave with a capacity of 100 mL, heated at 200 °C for 10 h, and then cooled to room temperature to obtain Fe 3 o 4 Magnetite particles. Will Fe 3 o 4 The magnetite particles were washed three times with deionized water and ethanol, respectively, and dispersed in 50 mL of ethanol to obtain Fe 3 o 4 Ethanol dispersion of particles.

[0093] Dilute 3.0mL to a concentration of 0.05gmL -1 Fe 3 o 4 The ethanol dispersion of the particles was added into a three-neck round bottom flask, and the concentration of 100mL of ethanol and 0.4mL of ammonia water of 28wt% was added successively to obtain an Fe-containing 3 o 4 solution of particles. Then, in the state of magnetic stir...

Embodiment 3

[0098] 3.25g of FeCl 3 ·6H 2 The sodium acetate (NaAc) of O, 6.0g and the sodium citrate of 1.3g are dissolved in the ethylene glycol solution of 80mL, after sonication 1h, obtain the FeCl-containing 3 The solution. will contain FeCl 3 The solution was poured into a Teflon-lined stainless steel autoclave with a capacity of 100 mL, heated at 200 °C for 10 h, and then cooled to room temperature to obtain Fe 3 o 4 Magnetite particles. Will Fe 3 o 4 The magnetite particles were washed three times with deionized water and ethanol, respectively, and dispersed in 50 mL of ethanol to obtain Fe 3 o 4 Ethanol dispersion of particles.

[0099] Dilute 3.0mL to a concentration of 0.05gmL -1 Fe 3 o 4 The ethanol dispersion of the particles was added into a three-neck round bottom flask, and the concentration of 100mL of ethanol and 0.4mL of ammonia water of 28wt% was added successively to obtain an Fe-containing 3 o 4 solution of particles. Then, in the state of magnetic stirri...

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Abstract

The invention provides a preparation method of a magnetic mesoporous titanium dioxide composite material. The invention further provides the magnetic mesoporous titanium dioxide composite material and application of the magnetic mesoporous titanium dioxide composite material as an ultrasonic catalyst. According to the preparation method and application of the magnetic mesoporous titanium dioxide composite material provided by the invention, the prepared composite material has good stability, durability and recoverability, the problem of subsequent separation and collection of a catalyst is solved, the catalytic efficiency of the catalyst is improved, and the degradation activity on organic pollutants such as pentachlorophenol (PCP) and bisphenol A (BPA) is improved.

Description

technical field [0001] The invention belongs to the technical field of ultrasonic catalysts, and relates to a preparation method and application of a magnetic mesoporous titanium dioxide composite material, in particular to a magnetic mesoporous titanium dioxide (Fe 3 o 4 @mTiO 2 @mC / SiO 2 ) composite materials and their application as ultrasonic catalysts. Background technique [0002] It is currently a very popular degradation method to use super-oxidizing OH free radicals and other substances generated by ultrasonic waves to reduce and degrade various organic pollutants produced in human life. This degradation method has attracted more and more attention because of its unique characteristics such as simple operation, safety and environmental friendliness. Ozonolysis, photolysis, Fenton's method, and photocatalytic oxidation are all green degradation catalytic methods that have attracted widespread attention in recent years. Among them, the principle of using ultrason...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): B01J23/745B01J35/10C02F1/36C02F1/72C02F101/30
CPCB01J23/745C02F1/36C02F1/725C02F2101/30B01J35/33B01J35/61B01J35/60Y02W10/37
Inventor 朱晓航曹德峰余大胜罗维邱鹏鹏李小鹏
Owner 苏州兴华高新材料科技有限公司
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