Effect of Mesoporous Catalysts on the Mainstream Tobacco Smoke of 3R4F and 1R5F Reference Cigarettes

Abstract

Abstract:The effect of three synthesised mesoporous catalysts (a SBA-15 and two MCM-41) on the smoke of two reference tobaccos (1R5F and 3R4F) has been studied. Mixtures of the catalysts and each tobacco were smoked under the ISO 3388 standard conditions. The gaseous compounds and the particulate matter condensed in the filter tip (TPM-F) and in a trap located downstream (TPM-T) from the mainstream smoke were analysed separately. The results obtained show that these catalysts directly mixed with tobacco are capable of reducing the yield of most of the compounds studied in the mainstream tobacco smoke. SBA-15 is a better additive for reducing the amount of the compounds analysed in 1R5F and 3R4F tobaccos, both in the liquid fraction (TPM-F and TPM-T) and in the gas fraction. The effect of the studied catalysts is higher on the full-flavour cigarette than on the ultra-low one. As an example, the reductions observed for CO and nicotine in TPM-T from 3R4F as a consequence of the SBA-15 addition were 46% and 77%, respectively. Thus, although the three checked materials are able to provide noticeable reductions, the best is the one having the higher size of pores (SBA-15).

Tga/Ftir Study of the Decomposition of Heet Tobacco in Presence of Zeolites and Silicate Compounds

“…For instance, Yong et al [7] used such materials for reducing the amount of PAH in tobacco smoke whereas Xu et al [10] focused on the removal of nitrosamines from tobacco smoke. MCM-41 and SBA-15 have been the object of other interesting studies focused on reducing the tobacco smoke toxicity [11][12][13].…”

Effect of Reaction Time and Hydrothermal Treatment Time on the Textural Properties of SBA-15 Synthesized Using Sodium Silicate as a Silica Source and Its Efficiency for Reducing Tobacco Smoke Toxicity

“…The use of these types of materials (i.e., MCM-48, MCM-41, SBA-15) and zeolites (i.e., NaA, NaY, HUSY, ZSM-5, Hβ), in the filter or directly mixed with tobacco to reduce the toxicity of the tobacco smoke, has been described elsewhere [35][36][37]. Our research group has studied the use of MCM-41, SBA-15 and zeolites (HUSY, HZSM-5 and Hβ) to reduce the yields of toxic compounds in tobacco smoke and we have reported that the addition of these materials to tobacco allows the reduction of most of the compounds present in the mainstream of tobacco smoke [28,[38][39][40]. In these works, the effect of these meso and microporous materials (having their particular properties) were studied.…”