Method for preparing amino-modified hierarchical pore adsorbent material for cigarette harm reduction

An adsorbent and raw material technology, which is applied in the field of preparation of amino-functionalized hierarchical porous adsorbent materials, can solve the problems of decomposition, inability to directly obtain multi-level materials, and the length of the formation path, and achieves adjustable pore size, which is beneficial to transmission and Diffusion, highly connected effect of pore structure
CN103157448AActive Publication Date: 2013-06-19SHANGHAI TOBACCO GRP CO LTD
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Patent Information

Authority / Receiving Office
CN · China
Current Assignee / Owner
SHANGHAI TOBACCO GRP CO LTD
Publication Date
2013-06-19

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Abstract

The invention relates to the field of tobaccos and in particular relates to a method for preparing an amino-modified hierarchical pore adsorbent material for cigarette harm reduction. The invention provides a method for preparing a macropore-mesoporous silicon dioxide adsorbent material, which comprises the following steps: weighing raw materials according to a ratio, uniformly dispersing organic high polymer microspheres in ethanol in which a silicon source, an acidic aqueous solution and a surfactant are dissolved, and stirring the mixture at room temperature for a period of time for performing prehydrolysis on the silicon source; and volatilizing a solvent in the mixed solution on a substrate, ageing an obtained composite film material, performing reflux treatment on the aged composite film material in a solvent, and extracting to remove a high polymer microsphere template and the surfactant, so as to obtain the macropore-mesoporous silicon dioxide adsorbent material. The material synthesized by using the method for preparing the macropore-mesoporous silicon dioxide adsorbent material has a large specific surface area and a large pore body, and a large quantity of amino groups are modified on the pore walls.
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Description

technical field

[0001] The invention relates to the field of tobacco, in particular to a method for preparing an amino-functionalized hierarchical porous adsorbent material used for cigarette harm reduction. Background technique

[0002] With the development of modern science and technology, people have a deeper understanding of the composition and hazards of cigarette smoke. According to literature reports, more than 4,000 substances have been identified in cigarette smoke, among which, in addition to the addictive substance nicotine, more than 40 polycyclic compounds with carcinogenic and tumorigenic activities have been detected from tar, the main component of mainstream smoke. Aromatic compounds. In order to reduce the content of harmful components in smoke, many domestic researchers have carried out a lot of research on cigarette harm reduction. Adding special adsorbents to filters is considered to be a promising way to reduce the harm of cigarettes. People have trie...

Claims

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