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Preface: Proceedings of the 5th International Electronic Conference on Sensors and Applications
Open AccessProceedings

Cellulose Acetate Recovery from Cigarette Butts

1
Department of Organic and Inorganic Chemistry, University of Extremadura, 10003 Cáceres, Spain
2
Department of Applied Physics, University of Extremadura, 10003 Cáceres, Spain
*
Author to whom correspondence should be addressed.
Presented at Environment, Green Technology and Engineering International Conference, Cáceres, Spain, 18–20 June 2018.
Proceedings 2018, 2(20), 1447; https://doi.org/10.3390/proceedings2201447
Published: 25 February 2019
Cigarette butts are one of the most common types of litter all around the world. This waste when disposed of in the environment pose a major threat to living organisms and ecosystem health. Cigarette butts are mainly made of cellulose acetate (2.45 substitution) that biodegrades slowly and can take up to 18 months to break down under normal litter conditions. Cellulose acetate is a valuable polymer that can be used for a great variety of applications. In this communication, we present the results from an ongoing study addressed to value cigarette butt waste based on the recovery of the cellulose acetate by a methodology that includes several solid-liquid extractions and a chemical precipitation. For that purpose three samples of cigarette butts were prepared and they were extracted with 5% (w/v) NaCl aqueous solution, 5% (w/v) NaAc aqueous solution or 0,02% (w/v) H2SO4 aqueous solution. After that, they were further extracted with absolute ethanol and diethyl ether. The cleaned butts were suspended in acetone and distilled water was added until a white precipitate of cellulose acetate was formed. Cellulose acetate was characterised by FTIR-ATR and its melting point. Extracts were analized by ICP-MS and GC-MS.
Keywords: cigarette butts; cellulose acetate; urban litter; waste cigarette butts; cellulose acetate; urban litter; waste
MDPI and ACS Style

Benavente, M.J.; Caballero, M.J.A.; Silvero, G.; López-Coca, I.; Escobar, V.G. Cellulose Acetate Recovery from Cigarette Butts. Proceedings 2018, 2, 1447.

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