Smoking causes global environment pollution. Among thousands components in tobacco smoke, tobacco-specific nitrosamines (TSNAs) are strong carcinogens existing in not only the mainstream smoke (inhaled by smoker), but also the side stream smoke to make non-smokers suffering from the risk of various diseases. To control the carcinogens in environment, mesoporous silica MCM-41 and SBA-15, zeolites NaA, NaZSM-5 and NaY are put into the tobacco rod of cigarettes to in situ eliminate TSNAs in mainstream smoke during the combustion of cigarette. These additives will be activated when they are approached by the hot zone in burning cigarette, removing TSNAs once these carcinogens transfer or form in the smoke. Actually they can remove the TSNA up to 35% in the smoke of Burley type tobacco, and most of these additives can keep their structure after tobacco combustion. This new strategy is beneficial for controlling the environment pollution caused by smoking.

Attempt to remove tobacco-specific nitrosamines in smoke by molecular sieves

244th National Meeting (2012)

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