Template agent for oriented synthesis of ZSM-5 molecular sieve with nano sheet layer structure as well as preparation method and application thereof
A technology of ZSM-5 and nanosheets, which is applied in the field of molecular sieve synthesis, can solve the problems of limited types of templates, limitations in the preparation of multi-stage pore molecular sieves, and inability to meet the needs of new chemical materials, and achieve good adsorption performance and VOCs adsorption capacity advantages Effect
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Embodiment 1
[0084] A template for guiding the synthesis of nanosheet structure ZSM-5 molecular sieves, prepared by the following method:
[0085] (1) Add 2g (10.75mmol) 4,4'-dihydroxybiphenyl and 1.2g potassium hydroxide to hot ethanol, slowly add 12.9g (43mmol) 1,10-dibromodecane dropwise under nitrogen protection , 80°C heat preservation reaction for 20h, stirring at 45rpm during the reaction process; then filtered while hot, washed the solid sample repeatedly with hot ethanol solution, and vacuum dried in a vacuum oven at 60°C for 8h to obtain a relatively pure intermediate Body A. The molecular formula of intermediate A is:
[0086] Br-(CH 2 ) 10 -O-C 6 h 4 -C 6 h 4 -O-(CH 2 ) 10 -Br, -C 6 h 4 -C 6 h 4 - is 4,4'-biphenyl;
[0087] (2) Dissolve 2g (3.21mmol) of intermediate A and 2.21g (12.84mmol) of N,N,N',N'-tetramethyl-1,6-hexanediamine in 100mL of In a mixed solution of acetonitrile and toluene, under the protection of nitrogen, the reaction was carried out at 70° C....
Embodiment 2
[0093] A template for guiding the synthesis of nanosheet structure ZSM-5 molecular sieves, prepared by the following method:
[0094] (1) Add 2g (10.75mmol) of 4,4'-dihydroxybiphenyl and 1.2g of potassium hydroxide to hot ethanol, and slowly add 19.35g (64.5mmol) of 1,10-dibromoquinone dropwise under the protection of nitrogen Alkanes, heat preservation reaction at 80°C for 20h, stirring at 45rpm during the reaction process; then filter while hot, wash the solid sample repeatedly with hot ethanol solution, and vacuum dry in a vacuum oven at 60°C for 8h to obtain relatively pure Intermediate A. The molecular formula of intermediate A is:
[0095] Br-(CH 2 ) 10 -O-C 6 h 4 -C 6 h 4 -O-(CH 2 ) 10 -Br, -C 6 h 4 -C 6 h 4 - is 4,4'-biphenyl;
[0096] (2) Dissolve 3g (4.81mmol) of intermediate A and 6.62g (38.48mmol) of N,N,N',N'-tetramethyl-1,6-hexanediamine in 100mL of In a mixed solution of acetonitrile and toluene, under the protection of nitrogen, the reaction was ...
Embodiment 3
[0101] A template for guiding the synthesis of nanosheet structure ZSM-5 molecular sieves, prepared by the following method:
[0102] (1) Add 2g (10.75mmol) 4,4'-dihydroxybiphenyl and 1.2g potassium hydroxide to hot ethanol, slowly add 25.8g (86mmol) 1,10-dibromodecane dropwise under nitrogen protection , 80°C heat preservation reaction for 20h, stirring at 45rpm during the reaction process; then filtered while hot, washed the solid sample repeatedly with hot ethanol solution, and vacuum dried in a vacuum oven at 60°C for 8h to obtain a relatively pure intermediate Body A. The molecular formula of intermediate A is:
[0103] Br-(CH 2 ) 10 -O-C 6 h 4 -C 6 h 4 -O-(CH 2 ) 10 -Br, -C 6 h 4 -C 6 h 4 - is 4,4'-biphenyl;
[0104](2) Dissolve 2.5g (4.01mmol) of intermediate A and 6.90g (40.1mmol) of N,N,N',N'-tetramethyl-1,6-hexanediamine in 100mL with a volume ratio of 1:1 In a mixed solution of acetonitrile and toluene, the reaction was incubated at 70° C. for 16 h un...
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