Cost-effective and recyclable aerogels from cellulose acetate for oil spills clean-up

Cigarette butts are the most known variety of anthropogenic litter on Earth, which consists mainly of cellulose acetate. It can be prepared as aerogel which can be used to remove oil pollution caused by heavy shipping traffic in the Baltic Sea. It is prepared as a solution in acetone which then is p...

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Bibliographic Details
Published in:Environmental science and pollution research international 2021-07, Vol.28 (27), p.36551-36558
Main Authors: Uebe, Jochen, Paulauskiene, Tatjana, Boikovych, Krystyna
Format: Article
Language:English
Subjects:
Acetic acid
Aerogels
Anthropogenic factors
Aquatic Pollution
Atmospheric Protection/Air Quality Control/Air Pollution
Biodiesel fuels
Biofuels
Cellulose acetate
Crude oil
Earth and Environmental Science
Ecotoxicology
Environment
Environmental Chemistry
Environmental Health
Environmental science
Hydrophobicity
Life cycles
Oil pollution
Oil spills
Recyclability
Regeneration
Research Article
Sorption
Waste Water Technology
Water Management
Water Pollution Control
Wetting
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Summary:Cigarette butts are the most known variety of anthropogenic litter on Earth, which consists mainly of cellulose acetate. It can be prepared as aerogel which can be used to remove oil pollution caused by heavy shipping traffic in the Baltic Sea. It is prepared as a solution in acetone which then is poured into water and oven-dried afterwards. The hydrophobicity can be simply improved by wetting with a little amount of oil. Aerogel’s sorption capacity, as well as its regeneration for sorption of crude oil, marine diesel oil, and biodiesel sorption from water surface, has been estimated. Their recyclability to fresh samples with re-characterization has been also determined. It has been found that multiple use of cellulose acetate aerogels is not effective because the sorption capacity decreases by up to 80% after a single use. However, the sorption capacity of recycled samples decreases by only 20% on average compared to the samples from the first batch. This capacity could be fully exploited during the life cycle of cellulose acetate.
ISSN:0944-1344
1614-7499
DOI:10.1007/s11356-021-13369-9