A kind of preparation method of inorganic hierarchical pore structure material
A technology of structural materials and graded pores, which is applied in the fields of inorganic, organic and polymer materials to achieve the effect of low cost, simple preparation method and high specific surface area.
- Summary
- Abstract
- Description
- Claims
- Application Information
AI Technical Summary
Problems solved by technology
Method used
Image
Examples
Embodiment 1
[0048] (1) Preparation of 300nm silica colloidal crystal template;
[0049] Utilize according to patent CN101691426A Synthesis method, at room temperature (25°C), add 134g of ethanol, 25g of ammonia water with a mass fraction of 25%, and 50.6g of deionized water to a 500mL three-necked bottle equipped with mechanical stirring, stir well, and then quickly add to the three-necked bottle 15.4g ethyl orthosilicate, react at room temperature for 8h. Transfer the obtained suspension to a beaker, and wait for the solvent to evaporate completely to obtain a colloidal silica template with an average particle size of 300nm. Finally, the template is sintered in a muffle furnace at 500°C for 3 hours, and slowly lowered to room temperature to obtain A silica colloidal crystal template in which silica microspheres with an average particle size of 300nm are adhered to each other;
[0050] figure 1 It was obtained by scanning the 300nm silica colloidal crystal template with a FEI Nano SEM...
Embodiment 2
[0066] (1) The preparation of 300nm silica colloidal crystal template is the same as embodiment one step (1);
[0067] (2) The preparation of the three-dimensional ordered macroporous cross-linked polystyrene material is the same as the first step (2) of the embodiment;
[0068] (3) The chloromethylation process of the three-dimensional ordered macroporous cross-linked polystyrene material is the same as the first step (3) of the embodiment;
[0069] (4) The quaternization process of chloromethylated three-dimensional ordered macroporous cross-linked polystyrene materials;
[0070] Weigh 0.3 g of the chloromethylated three-dimensional ordered cross-linked polystyrene material obtained in step (3) into the reactor, inject 10 mL of acetone under negative pressure to swell for 12 h, and then use a straw to suck the acetone out of the reaction Then add 5mL triethylamine solution with pH=9 and 5% mass fraction dropwise at 75°C, wash with ethanol after reacting for 8h, extract with...
Embodiment 3
[0075] (1) Preparation of a polyacrylamide (PAM) template with an average particle size ranging from 300nm to 500nm;
[0076] According to the patent CN102924856A, 10.6g of acrylamide (AM), 4.5g of polyvinylpyrrolidone (PVP), 20mL of distilled water (H 2 (0), 100mL ethanol (EtOH), argon protection and stirring evenly, add 0.04g initiator azobisisobutyronitrile (AIBN) after half an hour, control the constant rotating speed at 100r / min, stop the reaction after 7h, and the obtained Transfer the suspension to a beaker, wait for the solvent to volatilize completely, and obtain a polyacrylamide colloidal crystal template with an average particle size of 300nm-500nm;
[0077] (2) The preparation of three-dimensional ordered macroporous cross-linked polystyrene material is the following method:
[0078]The polyacrylamide colloidal crystal template that obtains in the step (1) of 6g drying is placed in the reactor, 10g monomer styrene (St), 0.4g cross-linking agent divinylbenzene (DVB...
PUM
| Property | Measurement | Unit |
|---|---|---|
| particle size | aaaaa | aaaaa |
Abstract
Description
Claims
Application Information
Login to View More