Preparation method of adsorbent capable of reducing nicotine content in cigarette smoke

Abstract

The invention discloses a preparation method of an adsorbent capable of reducing nicotine content in cigarette smoke. The preparation method comprises the following steps: performing molecular imprinting by a sacrifice silica gel skeleton method, after imprinting, removing silica gel by using hydrofluoric acid to solute, and obtaining microspheres with a molecular recognition function. The microspheres basically keep the shapes of primary silica gel microspheres, and have greater hole volumes and specific surface areas, a plurality of reaction sites and higher selectivity and adsorption capacity. The absorbent is applied to a composite rod, the addition amount can be regulated as required, when the addition amount is 10 mg/cigarette, compared with a comparing sample, the reduction rate of nicotine in cigarette smoke is 23.8%, and the relative reduction rate relative to tar is 10.4%; and when the addition amount is 20 mg/cigarette, compared with a comparing sample, the reduction rate of nicotine in cigarette smoke is 43.7%, and the relative reduction rate relative to tar is 23.4%; thus the effect of selectively reducing nicotine is very obvious.

Description

technical field [0001] The invention belongs to the technical field of cigarette material preparation, and in particular relates to a preparation method of an adsorbent capable of effectively reducing the nicotine content in cigarette smoke. Background technique [0002] The smoke produced by the burning of cigarettes contains carbon monoxide, nicotine and other harmful components. Among them, nicotine can increase the heart rate and blood pressure of the human body and cause dependence on it, which is not conducive to human health. Nicotine is an important indicator of cigarette quality one. [0003] At present, physical methods such as filter ventilation and cigarette paper punching are mainly used to reduce the nicotine content in the smoke. Since the nicotine content is reduced, the tar content of cigarettes is also reduced, which seriously affects the internal sensory quality of cigarettes. Therefore, selectively reducing the content of nicotine in cigarette smoke (rel...

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Problems solved by technology

[0004] In the prior art, there are reports of using a polymer adsorbent with specific adsorption function for nicotine to adsorb nicotine in cigarette smoke, but this adsorbent is prepared by the bulk polymerization method in molecular imprinting technology, and the obtained polymer adsorbs The agent binding site is seriously embedded, which is not conducive to molecular mass transfer, and the adsorption and desorption speed is slow, the selectivity is poor, and the adsorption capacity for nicotine in cigarette smoke is small

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