Production of solid acid catalyst using waste cigarette filters for esterification

Cigarette filters were utilized as carbon source for the production of solid carbon acid catalysts. In this study, the process of carbonization and simultaneous sulfonation via hydrothermal treatment was employed. The catalysts were prepared by mixing cigarette filters and sulfuric acid at temperatu...

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Bibliographic Details
Published in:	Environmental science and pollution research international Vol. 31; no. 5; pp. 8072 - 8081
Main Authors:	Teixeira, Leonan L. A., Araujo, Rayanne O., Santos, Jamily L., Guimaraes, Mariana N., Ribeiro, Victoria M. L., Pocrifka, Leandro A., Tenório, Jorge Alberto S., de Araujo, Joyce R., de Oliveira, Sanair M., do Nascimento Batista, Luciano, de Souza, Luiz K. C.
Format:	Journal Article
Language:	English
Published:	Berlin/Heidelberg Springer Berlin Heidelberg 01-01-2024 Springer Nature B.V
Subjects:	Aquatic Pollution Atmospheric Protection/Air Quality Control/Air Pollution Carbon Carbon sources Catalysts Cellulose acetate Chemical synthesis Cigarettes Conversion Earth and Environmental Science Ecotoxicology Energy consumption Environment Environmental Chemistry Environmental Health Environmental impact Environmental management Environmental science Esterification Filters Fluid filters Hydrothermal treatment Oleic acid Outdoor air quality Research Article Sulfonation Sulfuric acid Temperature Waste management Waste materials Waste utilization Waste Water Technology Water Management Water Pollution Control Cigarette filters Hydrothermal Catalyst Esterification
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Summary:	Cigarette filters were utilized as carbon source for the production of solid carbon acid catalysts. In this study, the process of carbonization and simultaneous sulfonation via hydrothermal treatment was employed. The catalysts were prepared by mixing cigarette filters and sulfuric acid at temperatures of 100, 150, and 190 °C for durations ranging from 2 to 8 h. It was observed that the highest conversion of oleic acid occurred when the catalyst was synthesized at 190 °C for 4 h. The optimized conditions for the esterification reaction using this catalyst included an oleic acid to methanol molar ratio of 1:12, a catalyst loading of 5 wt%, and a temperature of 100 °C for 1 h. Additionally, the catalyst was successfully reused four times without significantly impacting the reaction yield. These findings highlight a promising approach for the utilization of waste materials, with immediate implications for waste management practices and positive environmental impacts.
Bibliography:	ObjectType-Article-1 SourceType-Scholarly Journals-1 ObjectType-Feature-2 content type line 23
ISSN:	1614-7499 0944-1344 1614-7499
DOI:	10.1007/s11356-023-31771-3