Method for preparing metal organic framework film
A metal-organic framework and metal technology, applied in chemical instruments and methods, membrane technology, semi-permeable membrane separation, etc., can solve problems such as weak binding force and difficult film formation, and achieve the effect of easy operation and wide applicability
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Embodiment 1
[0017] Example 1 Synthesis of Cu3(BTC)2 film
[0018] In a 100ml beaker, 3.75g Cu(NO 3 ) 2 Dissolve it in 12 g of water to form a solution A. In another 100 ml beaker, dissolve 0.08 g of 1,3,5-tribenzenetricarboxylate (BTC) BTC in 24 g of ethanol to form a solution B. Take the pretreated carrier, seal the bottom end of the tube with a PTFE head, then pour the A solution into the tube, and then seal the other end with a PTFE head. After sealing, put the tube into Into the reaction kettle, inject solution B, then seal the kettle and place it at 120°C for crystallization synthesis for 12 hours. The prepared Cu3(BTC)2 membrane is rinsed with deionized water / ethanol and dried in a vacuum oven at 40°C spare. The entire synthesis process must be repeated twice until the synthesized membrane is dense and continuous.
[0019] Single gas test: install the Cu3(BTC)2 membrane prepared above into the membrane separator. At room temperature, the pressure difference between the two ends of the ...
Embodiment 2
[0020] Example 2 Synthesis of MOF-5 film:
[0021] Put 0.399g Zn(NO 3 ) 2 Fully dissolve in 2.846g dimethylformamide (N,N'-dimethylformamide, DMF) to form a solution A, in another 100ml beaker, dissolve 0.0502g phthalic acid (1,4-benzenedicarboxylate, BDC) in 12.33g DMF Form B solution. (Take the pretreated carrier, seal the bottom end of the tube with a Teflon cap, then pour the A solution into the tube, and then seal the other end with a Teflon cap. After sealing, put the tube into Into the reaction kettle, inject solution B, then seal the kettle and place it at a temperature of 100°C for crystallization synthesis for 12 hours. The prepared MOF-5 membrane is rinsed with DMF and dried in a vacuum oven at 40°C for use. The entire synthesis process The synthesis should be repeated twice until the synthesized film is dense and continuous.
[0022] Single gas test: Install the prepared MOF-5 membrane above into the membrane separator. At room temperature, the pressure difference bet...
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