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Development of Cellulose Aerogel as a New Material for the Reduction of Harmful Substances in Cigarette Smoke
Authors:Rahamin  Hashem  Jonoobi  Mehdi  Abzan  Nooshin  Sepahvand  Sima  Ashori  Alireza  Mekonnen  Tizazu H
Institution:1.Department of Wood and Paper Science and Technology, Faculty of Natural Resources, University of Tehran, Karaj, Iran
;2.Department of Chemical Engineering, University of Waterloo, Waterloo, ON, N2L 3G1, Canada
;3.Faculty of Petroleum and Chemical Engineering, Sciences and Research Branch, Islamic Azad University, Tehran, Iran
;4.Department of Chemical Technologies, Iranian Research Organization for Science and Technology (IROST), Tehran, Iran
;
Abstract:

The current study proposes a novel and improved cigarette filtration design comprising cellulose nanofibers (CNFs) and powdered activated carbons (PACs) with different dry matter contents. The proposed filter samples were primarily analyzed to verify their applicability as cigarette filters via measurements and standard tests, such as SEM, BET, DSC, and airflow permeability analysis. The results were compared with the cellulose acetate (CA) sample used as a conventional cigarette filter. The preliminary results indicated noticeable improvement compared to the reference CA. Also, the cigarettes were tested using a smoking machine, and the filtered smoke was analyzed using GC–MS to evaluate the filters' performance in reducing the harmful substances present in the smoke. The results showed that the filters made of CNF and PAC significantly decreased the toxic substances compared with the reference but did not affect the nicotine substantially and therefore will not negatively impact the trance level of smokers.

Keywords:
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