Application of organic aerogel as air purification material

[0032] The synthetic method of organic airgel material of the present invention comprises the following steps:

[0033] (1) Synthesis of compound Ⅰ

[0034] Dissolve cholesterol and Boc-D-phenylalanine in an appropriate amount of dichloromethane, stir in an ice-water bath to dissolve, add DCC and DMAP, react the mixed solution in an ice-water bath for 2-8 hours, and then react for 16 hours at room temperature. After ~24h, the obtained mixture was filtered to obtain a light yellow filtrate; dry HCl gas was passed into the filtrate until no white precipitate was formed in the system, and compound I was obtained in powder form after suction filtration and drying.

[0035]

[0036] (2) Synthesis of compound Ⅱ

[0037] Dissolve compound I in tetrahydrofuran, add triethylamine, heat to reflux for 2-8 hours, cool to room temperature to obtain a mixed solution; drop the tetrahydrofuran solution dissolved in methylenebis(4-phenylisocyanate) into the above mixed solution , stirred at

[0049] 1) Synthesis of compound Ⅰ

[0050] Dissolve 0.1 mol of cholesterol and 0.1 mol of Boc-D-phenylalanine in 250 mL of dichloromethane, stir in an ice-water bath to dissolve, add 0.1 mol of DCC and 0.01 mol of DMAP, and react the mixed solution in an ice-water bath for 2 hours, then react at room temperature for 16 hours , the resulting mixture was filtered to obtain a light yellow filtrate; the filtrate was passed through dry HCl gas under stirring conditions until no white precipitate was formed in the system, then the aeration was stopped, suction filtered, and vacuum dried to obtain powdered compound I;

[0051] 2) Synthesis of compound Ⅱ

[0052] Dissolve 0.1 mol of compound I in 200 mL of tetrahydrofuran, add 0.1 mol of triethylamine, heat to reflux for 2 h, and cool to room temperature; Liquid funnel, drop into the above mixed solution at a rate of (1-2) drops / second, stir at room temperature for 18 hours, filter with suction, and dry in vacuo to obtain compound II

[0059] 1) Synthesis of compound Ⅰ

[0060] Dissolve 0.1mol cholesterol and 0.2mol Boc-D-phenylalanine in 250mL of dichloromethane, stir in an ice-water bath to dissolve, add 0.2mol DCC and 0.04mol DMAP, and react the mixed solution in ice-water bath for 4 hours, then react at room temperature for 18 hours , the resulting mixture was filtered to obtain a pale yellow filtrate; the filtrate was passed through dry HCl gas under stirring conditions until no white precipitate was formed in the system, then the aeration was stopped, suction filtered, and vacuum dried to obtain powdery compound Ⅰ.

[0061] 2) Synthesis of compound Ⅱ

[0062] Dissolve 0.1 mol of compound I in 200 mL of tetrahydrofuran, add 0.2 mol of triethylamine, heat to reflux for 4 hours, and cool to room temperature; Using a liquid funnel, drop it into the above mixed solution at a rate of (1-2) drops / second, stir at room temperature for 20 h, filter with suction, and dry in vacuo to obtain compound II as a white