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Pollution-free preparation method of periodic mesoporous organic silicon oxide material

An organic silicon oxide, periodic technology, applied in the field of mesoporous materials, can solve problems such as environmental pollution

Active Publication Date: 2019-03-26
HEZE UNIV
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

[0004] In view of the existing difficulties in the synthesis of PMOs materials and problems such as environmental pollution, the purpose of the present invention is to provide a green and efficient synthesis method of PMOs materials without any environmental pollution under neutral conditions

Method used

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  • Pollution-free preparation method of periodic mesoporous organic silicon oxide material

Examples

Experimental program
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Effect test

Embodiment 1

[0032] A green preparation method of a periodic mesoporous organic silicon oxide material, comprising the following steps:

[0033] (1) Add 0.107g Na 2 S 2 o 8 Dissolve in 10ml of water, add 2ml of 1,2-bis(triethoxysilyl)ethane while stirring, and then ultrasonicate the mixture at 35°C for 1 hour under 100W ultrasonic power until the solution is uniform without stratification to obtain a solution a.

[0034] (2) Mix 1.04g of P123 solution in 26ml of water, stir for 6 hours until completely dissolved, then add 0.5g of NaCl, continue stirring until completely dissolved to obtain solution B.

[0035] (3) Add solution B to solution A, stir the solution evenly, and ultrasonicate the solution at 40 degrees Celsius for 0.5 hours under 100W ultrasonic power to obtain a milky white sol, then continue to stir it at 40 degrees Celsius for 12 hours, and transfer it to the belt polymer In a reaction kettle lined with tetrafluoroethylene, crystallize at 100 degrees Celsius for 48 hours....

Embodiment 2

[0039] A green preparation method of a periodic mesoporous organic silicon oxide material, comprising the following steps:

[0040] (1) Add 0.053g Na 2 S 2 o 8 Dissolve in 10ml of water, add 2ml of 1,2-bis(trimethoxysilyl)ethane while stirring, and then ultrasonicate the mixture at 35°C for 1 hour under 50W ultrasonic power until the solution is uniform without stratification to obtain solution A .

[0041] (2) Mix 1.21g of P123 solution in 26ml of water, stir for 6 hours until completely dissolved, then add 0.1g of KCl, continue stirring until completely dissolved to obtain solution B.

[0042] (3) Add solution B to solution A, stir the solution evenly, and ultrasonicate the solution at 40 degrees Celsius for 0.5 hours under 50W ultrasonic power to obtain a milky white sol, then continue to stir it at 40 degrees Celsius for 24 hours, and then transfer it to the belt polymer In a reaction kettle lined with tetrafluoroethylene, it was crystallized at 100 degrees Celsius for...

Embodiment 3

[0046] A green preparation method of a periodic mesoporous organic silicon oxide material, comprising the following steps:

[0047] (1) 1.325g Na 2 S 2 o 8 Dissolve in 10ml of water, add 4ml of 1,4-bis(triethoxysilyl)benzene under stirring, then ultrasonicate the mixture at 35°C for 30 minutes under 150W ultrasonic power until the solution is uniform without stratification to obtain solution A .

[0048] (2) Mix 1.92g of P123 solution in 52ml of water, stir for 6 hours until completely dissolved, then add 1.8g of NaCl, continue stirring until completely dissolved to obtain solution B.

[0049] (3) Add solution B to solution A, stir the solution evenly, and ultrasonicate the solution at 40 degrees Celsius for 30 minutes under 150W ultrasonic power to obtain a milky white sol, then continue to stir it at 40 degrees Celsius for 24 hours, and then transfer it to the belt polymer In a reaction kettle lined with tetrafluoroethylene, it was crystallized at 100 degrees Celsius for...

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Abstract

The invention belongs to the technical field of mesoporous materials, and particularly relates to a pollution-free preparation method of a periodic mesoporous organic silicon oxide material. In a Na2S2O8 solution, a unique micro-flow jet effect and a cavitation shock effect of ultrasonic waves are used to eliminate the non-uniformity of local concentration, to accelerate the generation of hydroxylfree radicals and to promote the hydrolysis of bridged organic silsesquioxane, then the solution is mixed with an organic template agent P123 and water soluble inorganic salt under ultrasound, and aself-assembling process between the organic template agent and an organic silicon source is promoted. The method is performed under an acid-free, alkali-free and heavy-metal-ion-free neutral condition, no acidic and alkaline waste solution containing the heavy metal ions is produced, and the reaction process is environmentally friendly and pollution-free; and the method has the advantages of highefficiency, mild reaction condition, convenient operation and the like, and facilitates the use in mass production.

Description

technical field [0001] The invention belongs to the technical field of mesoporous materials, and in particular relates to a green preparation method of periodic mesoporous organic silicon oxide materials. Background technique [0002] Periodic mesoporous organosilica materials (PMOs) are a new type of organic-inorganic hybrid materials. Compared with traditional inorganic mesoporous silica materials, in addition to uniform pore size and high specific surface area, PMOs materials also have some new features, such as adjustable surface hydrophobicity / hydrophilicity, excellent water thermal stability and adsorption capacity, etc. In addition, the organic groups present in the PMOs framework structure can also be further functionalized to derive new functional groups. Therefore, PMOs materials show great application potential in many fields, especially in chemical industry (catalysis), environmental application (pollutant removal) and biomedicine (sustained drug release). [...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): C01B39/04C01B37/00
CPCC01B37/00C01B39/04C01P2002/72C01P2004/04C01P2006/12C01P2006/16
Inventor 林枫孟祥艳卢胜杰武利顺王斌岳峰
Owner HEZE UNIV
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