Work

Fibrillated Nanocellulose Obtained by Mechanochemical Processes from Coconut Fiber Residue

Year: 2025

Type: article

Abstract: Rich in cellulose, the agro-industrial residue of “Cocos nucifera L.” stands out due to its high global production. In view of this, this research into the development of cellulose nanofibrils from green coconut fiber residue evaluated the fiber produced from an alkaline pre-treatment associated with a grinding process using a colloidal mill, which produced pure and renewable cellulose with characteristics similar to those of commercial celluloses. FTIR and XRD spectroscopy analyses showed that the methodologies established for coconut fiber are efficient in removing amorphous groups. The XRD corroborated the spectrogram and revealed a peak at 2θ = 22°, corresponding to the crystalline region of cellulose I. Both analyses were preceded by thermal analysis showing a reduction in lignin and an increase in the cellulose fraction. The AFM and SEM morphological micrographic analyses confirm the efficiency of the mechanochemical treatment in producing nanometric fibers, which, when submitted to rheology analyses, presented the desired gel profile.

Source: Fibers

DOI: 10.3390/fib13090123

Authors: Sarah Inglid dos Santos Silva, Cassiano Pires, Egon Petersohn Junior, Angela Maria Tribuzy de Magalhães Cordeiro, Rilton Alves de Freitas, Nataly Albuquerque dos Santos

Institutions: Universidade Federal da Paraíba, Universidade Federal do Paraná

Language: English

Topic: Advanced Cellulose Research Studies

Subfield: Biomaterials

Field: Materials Science

Domain: Physical Sciences

SDG: Responsible consumption and production

Open Access status: gold

Estimated APC paid: $2,413