Porous catalyst based on waste plastics, preparation method and applications thereof
A technology of porous catalyst and waste plastic, which is applied in the field of porous catalyst and its preparation, can solve the problems of visual pollution, land, marine organisms, terrestrial organisms and human hazards, and achieves the effects of high conversion rate, improved catalytic effect, and simple synthesis.
- Summary
- Abstract
- Description
- Claims
- Application Information
AI Technical Summary
Problems solved by technology
Method used
Image
Examples
Embodiment 1
[0046] Aiming at the existing problems, the present invention provides a porous catalyst, the porous catalyst is a polystyrene-based porous catalyst, and the porous catalyst is PS@Co-Salen -1 , the PS@Co-Salen -1 The structural formula is:
[0047]
[0048] Or the porous catalyst is PS@Co-Salen -2 , the PS@Co-Salen -2The structural formula is
[0049]
[0050] The PS@Co-Salen -1 and PS @Co-Salen -2 It is a porous polymer, which is a new type of polymer porous material with a microporous or mesoporous structure formed by covalently connecting organic structural units. Due to its stable microporous or mesoporous structure and large specific surface area , so that it has shown important application value in heterogeneous catalysis and chemical / biological sensing. The pores of the porous polymer can provide a good reaction site for the catalytic reaction, thus contributing to the improvement of the catalytic effect.
[0051] like Figure 4 Shown, for PS@Co-Salen -1 ...
Embodiment 2
[0053] (1) Extract polystyrene from waste plastics: Take 5 grams of waste plastics and dissolve them in 30ml of acetone, then slowly drop them into 300ml of methanol, let them stand for 8 hours, filter them with suction, and dry them in vacuum at 60°C to obtain 4g of polystyrenes , recovery rate 80%, number average molecular weight M n =201398, PDI=1.21.
[0054] (2) Preparation of PS@CHO: Take 2.5g of polystyrene, 4.1g of 5-chloromethyl salicylaldehyde, and 9.6g of aluminum trichloride, dissolve them in 150ml of chloroform and react for 24h, cool down and filter, then use methanol, distilled water and more After washing for the first time, dry to obtain PS@CHO with a yield of 85%. The structural formula of PS@CHO is:
[0055]
[0056] like figure 2 It is the infrared image of PS@CHO. It can be seen from the image that at 1656cm -1 There is an obvious vibration peak of C=O
[0057] (3) Preparation of 3,5-di-tert-butyl salicylaldehyde o-phenylenediamine Schiff base (S-S...
Embodiment 3
[0067] (1) Extract polystyrene from waste plastics: Take 5 grams of waste foam and dissolve it in 30ml of acetone, then slowly drop it into 300ml of methanol, let it stand for 8 hours, filter it with suction, and dry it in vacuum at 60°C to obtain 4g of polystyrene , recovery rate 80%, number average molecular weight M n = 201398, PDI = 1.21;
[0068] (2) Preparation of aldylated polystyrene (PS@CHO): Take 2.5g of polystyrene, 4.1g of 5-chloromethyl salicylaldehyde, 9.6g of aluminum trichloride, dissolve in 150ml of chloroform and react for 24h, After cooling and filtering, washing with methanol and distilled water for several times, drying, PS@CHO was obtained with a yield of 85%. The structural formula of PS@CHO is:
[0069]
[0070] (3) Preparation of polystyrene loaded Salen (PS@Salen -2 ): Take 2g of PS@CHO, 233.5mg of o-phenylenediamine, add 30ml of anhydrous dimethylacetamide (DMAC) to react at 80°C for 24h, filter and dry to obtain PS@Salen -2 , productive rate 9...
PUM
Login to View More Abstract
Description
Claims
Application Information
Login to View More