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  4. Hydrophobic Cellulose-Based Sorbents for Oil/Water Separation
 
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Hydrophobic Cellulose-Based Sorbents for Oil/Water Separation

Type
Journal article
Language
English
Date issued
2024
Author
Tomkowiak, Karolina
Mazela, Bartłomiej 
Szubert, Zuzanna
Perdoch, Waldemar 
Faculty
Wydział Leśny i Technologii Drewna
PBN discipline
forestry
Journal
Molecules
ISSN
1420-3049
DOI
10.3390/molecules29194661
Web address
https://www.mdpi.com/1420-3049/29/19/4661
Volume
29
Number
19
Pages from-to
art. 4661
Abstract (EN)
The need for sustainable, biodegradable materials to address environmental challenges, such as oil-water separation, is growing. Cellulose-based absorbents offer an eco-friendly alternative to synthetic materials. However, their hydrophobicity must be enhanced for efficient application. In this study, cellulose-based sorbents derived from Kraft and half-bleached chemo-thermomechanical pulp (BCTMP) were hydrophobized using silanization and alkyl ketene dimer (AKD) techniques. Hydrophobic properties were successfully imparted using methyltrimethoxysilane (MTMOS), n-octyltriethoxysilane (NTES), and N-(2-Aminoethyl)-3-aminopropyltrimethoxysilane (AATMS), with water contact angles ranging from 120° to 140°. The water sorption capacity was significantly reduced to below 1 g/g, whereas the oil sorption capacity remained high (19–28 g/g). The most substantial reduction in water vapor absorption (3–6%) was observed for the MTMOS- and AATMS-silanized samples. These results demonstrate the potential of hydrophobized cellulose-based sorbents as sustainable alternatives for oil-water separation, contributing to environmentally friendly water treatment solutions.
Keywords (EN)
  • cellulose-based absorbents

  • hydrophobization

  • silanization

  • oil-water separation

  • biodegradable materials

  • environmental sustainability

License
cc-bycc-by CC-BY - Attribution
Open access date
September 30, 2024
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