Preparation method of adsorbent capable of reducing nicotine content in cigarette smoke
A cigarette smoke and nicotine technology, applied in chemical instruments and methods, tobacco, smoke oil filter elements, etc., can solve the problems of small nicotine adsorption capacity, unfavorable molecular mass transfer, poor selectivity, etc., and achieve high imprinting effect and specific recognition , obvious effect, simple operation effect
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[0026] Choose nicotine (NIC) as the imprinting molecule, methacrylic acid (MAA) as the functional monomer, ethylene glycol dimethacrylate (EDMA) as the crosslinking agent, azobisisobutyronitrile (AIBN) as the initiator, silica gel To sacrifice the carrier, accurately measure 162 mg of NIC, 0.17 mL of MAA, 7.8 mL of EDMA, 10 mg of AIBN and 5000 mg of silica gel for use; dissolve NIC in 20 mL of chloroform completely, add MAA and shake at 25 °C , the shaking speed is 144 r / min, after 3 h, add EDMA and AIBN and stir evenly, pass nitrogen gas for 3 min, add silica gel and then pass nitrogen gas for 3 min, vacuum seal, shake in a constant temperature water bath at 60 ℃ for 24 h to make it polymerize Reaction; introduce the polymer into the container, add 25 mL of hydrofluoric acid and seal it, stir and react at 25 °C for 12 h, then filter, and wash the obtained filtrate with 0.1 mol / L NaOH solution until neutral (pH 7.0), Then fully wash with ultrapure water to remove a small amoun...
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