Selective reduction of bulky polycyclic aromatic hydrocarbons from mainstream smoke of cigarettes by mesoporous materials

Yong, Guo‐Ping; Zhang, Jin; Tong, Hongwu; Yan, Xiangyang; Guang-shui, LI; Liu, Shaomin

doi:10.1016/j.micromeso.2005.12.002

Cited by 24 publications

(16 citation statements)

References 19 publications

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“…The use of zeolites and other aluminosilicates in the filter or directly mixed with tobacco in order to reduce nitrosamines and polycyclic aromatics in the tobacco mainstream smoke has been described by several authors, who investigated the role of materials such as NaA, NaY, KA and NaZSM‐5, Cu‐ZSM‐5, SBA‐15, MCM‐48 and cerium‐containing MCM‐48, among others. The role of some of these materials in the pyrolysis and oxidation of tobacco as well as in different systems involving tobacco and different cigarette additives has been reported elsewhere …”

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confidence: 99%

TGA‐FTIR study of the pyrolysis of sodium citrate and its effect on the pyrolysis of tobacco and tobacco/SBA‐15 mixtures under N₂ and air atmospheres

et al. 2018

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In this work, the effect of sodium citrate mixed with tobacco, in the presence and absence of SBA-15 material, was studied by thermogravimetric analysis coupled to Fourier-transform infrared spectrometry under N and air atmospheres. Depending on the atmosphere used, the decomposition of sodium citrate changes considerably at high temperatures, mainly due to the oxidation of the residue. The analysis of the experimental and calculated derivative thermogravimetric data of the sodium citrate/SBA-15 mixtures allows the observation of marked widening of the peaks appearing at lower temperatures, due to the presence of SBA-15, while the expected peak at high temperatures in air completely disappears. The presence of sodium citrate in tobacco and tobacco/SBA-15 mixtures produces changes, especially in air atmosphere, where the main peaks increase their intensity, whereas decreasing that of the oxidation of the residue at around 450 °C and an important peak appears at 630 °C. In N atmosphere, all decomposition processes of tobacco proceed at lower temperatures and with higher intensities. The peak due to the citrate at temperatures around 200 °C completely disappears in all samples. © 2018 Society of Chemical Industry.

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confidence: 99%

TGA‐FTIR study of the pyrolysis of sodium citrate and its effect on the pyrolysis of tobacco and tobacco/SBA‐15 mixtures under N₂ and air atmospheres

et al. 2018

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“…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].…”

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confidence: 99%

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

et al. 2021

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The synthesis of SBA-15 has been optimized using sodium silicate, an inexpensive precursor of SBA-15. In this work, the influence of synthesis times of the precipitation and the hydrothermal treatment steps, on the textural properties developed as well as for reducing the toxic compounds generated in tobacco smoking, has been studied. The hydrothermal treatment has been proved to be necessary to obtain materials with adequate performance in this particular application. Twenty-four hours of hydrothermal treatment provide materials with the best properties. Although the reaction stage usually involves the mixing of reagents during 24 h, 40 min is enough to obtain a material with stick-like morphology and typical textural properties. Moreover, between 1 and 2 h of reaction time, the material proved to have the best performance for the purpose of reducing the toxicity of the products generated during the tobacco smoking process. These results are of great significance for an eventual scaling up to industrial scale of the SBA-15 manufacturing process. Results of a pilot plant experiment in a batch of 4 kg of SBA-15 are reported.

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“…The use of zeolites and other aluminosilicates in the filter or directly mixed with tobacco to reduce nitrosamines and polycyclic aromatics in the main MSS has been described by several authors [7] , [30] , [31] , [11] , who employed NaA, NaY, KA and NaZSM-5, Cu-ZSM-5, SBA-15, MCM-48, Cerium-containing MCM-48 and other calco-silicates. Our research group has studied the synthesis of MCM-41 catalyst for different purposes [17] .…”

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confidence: 99%

Reduction of tobacco smoke components yield in commercial cigarette brands by addition of HUSY, NaY and Al-MCM-41 to the cigarette rod

et al. 2015

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The effect of two zeolites, HUSY, NaY and a mesoporous synthesized Al-MCM-41 material on the smoke composition of ten commercial cigarettes brands has been studied. Cigarettes were prepared by mixing the tobacco with the three powdered materials, and the smoke obtained under the ISO conditions was analyzed. Up to 32 compounds were identified and quantified in the gas fraction and 80 in the total particulate matter (TPM) condensed in the cigarettes filters and in the traps located after the mouth end of the cigarettes. Al-MCM-41 is by far the best additive, providing the highest reductions of the yield for most compounds and brands analyzed. A positive correlation was observed among the TPM and nicotine yields with the reduction obtained in nicotine, CO, and most compounds with the three additives. The amount of ashes in additive free basis increases due to the coke deposited on the solids, especially with Al-MCM-41. Nicotine is reduced with Al-MCM-41 by an average of 34.4% for the brands studied (49.5% for the brand where the major reduction was obtained and 18.5 for the brand behaving the worst). CO is reduced by an average of 18.6% (ranging from 10.3 to 35.2% in the different brands).

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Selective reduction of bulky polycyclic aromatic hydrocarbons from mainstream smoke of cigarettes by mesoporous materials

Cited by 24 publications

References 19 publications

TGA‐FTIR study of the pyrolysis of sodium citrate and its effect on the pyrolysis of tobacco and tobacco/SBA‐15 mixtures under N₂ and air atmospheres

TGA‐FTIR study of the pyrolysis of sodium citrate and its effect on the pyrolysis of tobacco and tobacco/SBA‐15 mixtures under N₂ and air atmospheres

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

Reduction of tobacco smoke components yield in commercial cigarette brands by addition of HUSY, NaY and Al-MCM-41 to the cigarette rod

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Selective reduction of bulky polycyclic aromatic hydrocarbons from mainstream smoke of cigarettes by mesoporous materials

Cited by 24 publications

References 19 publications

TGA‐FTIR study of the pyrolysis of sodium citrate and its effect on the pyrolysis of tobacco and tobacco/SBA‐15 mixtures under N2 and air atmospheres

TGA‐FTIR study of the pyrolysis of sodium citrate and its effect on the pyrolysis of tobacco and tobacco/SBA‐15 mixtures under N2 and air atmospheres

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

Reduction of tobacco smoke components yield in commercial cigarette brands by addition of HUSY, NaY and Al-MCM-41 to the cigarette rod

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TGA‐FTIR study of the pyrolysis of sodium citrate and its effect on the pyrolysis of tobacco and tobacco/SBA‐15 mixtures under N₂ and air atmospheres

TGA‐FTIR study of the pyrolysis of sodium citrate and its effect on the pyrolysis of tobacco and tobacco/SBA‐15 mixtures under N₂ and air atmospheres