A kind of mesoporous molecular sieve/phosphoramide composite material and preparation method thereof
A mesoporous molecular sieve and composite material technology, applied in the mesoporous molecular sieve/phosphoramide composite material and its preparation field, can solve the problem of insufficient uranyl adsorption capacity, achieve excellent uranyl ion adsorption performance, low production cost, and high yield high effect
- Summary
- Abstract
- Description
- Claims
- Application Information
AI Technical Summary
Problems solved by technology
Method used
Image
Examples
Embodiment 1
[0046] Two mesoporous molecular sieve / phosphoramide composites with a graft ratio of 20% were prepared.
[0047] (1) Synthesis of phosphoramidosilane coupling agent
[0048]Diethyl chlorophosphate (DECP) was used as phosphorus source, 3-aminopropyltrimethoxysilane (APTMS) as coupling agent, triethylamine (TEA) as catalyst, and dry toluene as solvent. The DECP, APTMS and TEA were weighed according to the molar ratio of 3:1:0.2 for use. The weighed 0.1 mol of 3-aminopropyltrimethoxysilane and 0.02 mol of triethylamine were dissolved in 200 mL of dry toluene to obtain a first solution. Then, the weighed 0.3 mol of diethyl chlorophosphate was dissolved in 100 mL of dry toluene solution to obtain a second solution. Then, under nitrogen protection, the first solution was added to the second solution in an ice-water bath at 0-5 °C, and vigorous stirring was performed while adding. After the addition, the reactant was heated to room temperature, and the reaction was continued for 10...
Embodiment 2
[0053] (1) Synthesis of phosphoramidosilane coupling agent
[0054] Diethyl chlorophosphate (DECP) was used as phosphorus source, 3-aminopropyltrimethoxysilane (APTMS) as coupling agent, triethylamine (TEA) as catalyst, and dry toluene as solvent. Weigh DECP, APTMS and TEA according to the molar ratio of 1:1:1 and set aside. The weighed 0.1 mol of 3-aminopropyltrimethoxysilane and 0.1 mol of triethylamine were dissolved in 300 mL of dry toluene to obtain a first solution. Then, the weighed 0.1 mol of diethyl chlorophosphate was dissolved in 50 mL of dry toluene solution to obtain a second solution. Then, under nitrogen protection, the first solution was added to the second solution in an ice-water bath at 0-5°C, and vigorous stirring was performed while adding. After the addition was completed, the reactant was heated to room temperature, and the reaction was continued for 8 hours to obtain the reaction product. , the reaction product was suction filtered to remove the white...
Embodiment 3
[0058] (1) Synthesis of phosphoramidosilane coupling agent
[0059] Diethyl chlorophosphate (DECP) was used as phosphorus source, 3-aminopropyltrimethoxysilane (APTMS) as coupling agent, triethylamine (TEA) as catalyst, and dry toluene as solvent. Weigh DECP, APTMS and TEA according to the molar ratio of 1:1:1 and set aside. The weighed 0.1 mol of 3-aminopropyltrimethoxysilane and 0.1 mol of triethylamine were dissolved in 300 mL of dry toluene to obtain a first solution. Then, the weighed 0.1 mol of diethyl chlorophosphate was dissolved in 50 mL of dry toluene solution to obtain a second solution. Then, under nitrogen protection, the first solution was added to the second solution in an ice-water bath at 0-5°C, and vigorous stirring was performed while adding. After the addition was completed, the reactant was heated to room temperature, and the reaction was continued for 8 hours to obtain the reaction product. , the reaction product was suction filtered to remove the white...
PUM
| Property | Measurement | Unit |
|---|---|---|
| length | aaaaa | aaaaa |
| length | aaaaa | aaaaa |
| diameter | aaaaa | aaaaa |
Abstract
Description
Claims
Application Information
Login to View More