Eco‐friendly production and performance evaluation of water‐resistant cellulose nanofiber bioaerogels

Author:

Mawardi Indra1,Saharudin Nur Izzaati23,Ahmad Azfaralariff23,Khalil H. P. S. Abdul23,Abdullah Che Ku23,Yahya Esam Bashir34

Affiliation:

1. Department of Mechanical Engineering Politeknik Negeri Lhokseumawe Lhokseumawe Indonesia

2. Bioresource Technology Division School of Industrial Technology, Universiti Sains Malaysia Penang Malaysia

3. Green Biopolymer, Coatings and Packaging Cluster School of Industrial Technology, Universiti Sains Malaysia Penang Malaysia

4. Bioprocess Technology Division School of Industrial Technology, Universiti Sains Malaysia Penang Malaysia

Abstract

AbstractA sustainable and environmentally conscious approach was employed to create a cellulose nanofiber (CNF) bioaerogel. This modified technique was used for its affordability and eco‐friendly nature, involved the use of reduced concentrations of NaOH solution (ranging from 0 to 0.5 M) to disperse the CNFs. The process included mixing, freezing, neutralizing, and freeze‐drying, ultimately resulting in well‐structured 3D bioaerogels. The concentration of NaOH had a significant impact on the properties of the bioaerogels. The density of the aerogels increases with higher concentration of NaOH. All treated aerogels exhibited impressive water resistance and maintained their structural integrity when exposed to water, indicating promising practical applications. This enhanced structural integrity is attributed to CNF chain rearrangement, facilitated by CNF swelling, dissolution in NaOH, and homogenization. FTIR and XRD analyses provided insight into the transition from cellulose I to cellulose‐II in the bioaerogel structure. These findings contribute to the development of eco‐friendly bioaerogels for environmentally conscious applications. Further research is needed to gain a deeper understanding of the process and to optimize conditions for specific bioaerogel properties.

Funder

Universiti Sains Malaysia

Publisher

Wiley

Subject

Materials Chemistry,Polymers and Plastics,General Chemistry,Materials Chemistry,Polymers and Plastics,General Chemistry

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1. Bioadsorbent nanocellulose aerogel efficiency impregnated with spent coffee grounds;International Journal of Biological Macromolecules;2024-02

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