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为研究介孔材料对卷烟烟气有害成分吸附特性及其影响关系,进一步了解其在卷烟减害过程中的作用机理及应用价值。项目以介孔氧化铝表面特性为研究对象,通过采用煅烧手段改变表面羟基量,使用红外光谱IR对其进行表征,同时使用油酸对其表面进行疏水性改性,测试其对烟气中巴豆醛有害成分吸附的影响。结果表明:介孔氧化铝表面羟基严重影响介孔结构对有机物巴豆醛的吸附,煅烧后与煅烧前相比,介孔氧化铝对卷烟烟气巴豆醛的吸附性能显著提升;经油酸表面疏水性改性后,介孔氧化铝对巴豆醛的吸附性能不但没有提升效果,反而出现明显下降。
In order to study the adsorption characteristics and influence of mesoporous materials on the harmful components of cigarette smoke, the mechanism and application value of mesoporous materials in cigarette harm reduction process were further studied. In this project, the surface properties of mesoporous alumina were investigated. The amount of hydroxyl groups on the surface of the mesoporous alumina was changed by calcination. The IR was used to characterize the surface hydroxyl groups. At the same time, oleic acid was used to modify the surface hydrophobicity. Effect of Aldehydes on the Adsorption of Harmful Components. The results showed that the hydroxyl groups on the mesoporous alumina seriously affected the adsorption of mesoporous organic compounds on the mesocarboxaldehyde. Compared with the calcined mesoporous alumina, the adsorption of mesoporous alumina on crotonaldehyde in the cigarette smoke was significantly improved. After the oleic acid surface hydrophobic After the modification, mesoporous alumina adsorption of crotonaldehyde not only did not improve the effect, but decreased significantly.