HZSM-5 zeolite was used to conquer the challenge of liquid adsorption of tobacco specific N-nitrosamines (TSNA), either in aqueous solution or tobacco extract solution, offering a candidate with an optimal Si/Al ratio and channel structure to capture the carcinogens. It could trap 84% of N′-nitrosonornicotine (NNN) and 99% of 4-methylnitrosamino-1-3-pyridyl-1-butanone (NNK) in aqueous solution, much better than that by NaZSM-5 zeolite. Both FTIR and TG/MS technologies were employed to study the adsorption and catalytic degradation of NNN and NNK by HZSM-5 zeolite. The N–N bond of NNK was broken in the range of 423–573K and the pyridine fragments appeared at 630K due to the breakage of C–C bond between pyridine and carbonyl groups. Besides, HZSM-5 zeolite was sprayed on the rod of cigarette and smoked with different manners for the first time, in order to assess its function of reducing TSNA content in mainstream smoke and compared with that of liquid adsorption.

中文翻译：

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质子的影响：用HZSM-5沸石捕获烟草特有的N-亚硝胺（TSNA）

HZSM-5沸石用于克服烟草特定的N-亚硝胺（TSNA）在水溶液或烟草提取液中的液体吸附挑战，从而为候选人提供了最佳的Si / Al比和通道结构来捕获致癌物。它可以捕集水溶液中84％的N'-亚硝基鸟氨酸（NNN）和99％的4-甲基亚硝基氨基-1-3-吡啶基-1-丁酮（NNK），远优于NaZSM-5沸石。FTIR和TG / MS技术均被用于研究HZSM-5沸石对NNN和NNK的吸附和催化降解。NNK的N–N键在423–573K范围内断裂，并且由于吡啶和羰基之间的C–C键断裂，吡啶片段出现在630K。此外，首次将HZSM-5沸石喷在烟杆上，并以不同的方式烟熏，