Preparation of Nanocellulose Using Ammonium Persulfate and Method’s Comparison with Other Techniques
Key Engineering Materials 2016
Linda Rozenberga, Laura Vikele, Linda Vecbiškena, Inese Sable, Marianna Laka, Uldis Grīnfelds

Cellulose nanocrystals (CNCs) have generated increasing attention in the past few years as potential sources of innovative bionanomaterials. This study focuses on an alternative method of nanocellulose particle preparation, using ammonium persulfate, and compares this to existing techniques. Nanoparticles were prepared using 4 different methods: thermocatalytic method, TEMPO oxidation, the acid hydrolysis and oxidation with ammonium persulfate. With the ammonium persulfate method, the grinding time of the oxidised cellulose is reduced drastically to only 0.5h, and results in an average nanoparticles size of 404.5 nm, zeta potential of -26.4 and crystallinity degree of 80%. Based on comparison of these parameters to results from existing techniques, oxidising cellulose using ammonium persulfate appears to be a promising alternative.


Atslēgas vārdi
Nanocellulose, oxidation, crystallinity, TEMPO, ammonium persulfate
DOI
10.4028/www.scientific.net/KEM.674.21
Hipersaite
https://www.scientific.net/KEM.674.21

Rozenberga, L., Vikele, L., Vecbiškena, L., Sable, I., Laka, M., Grīnfelds, U. Preparation of Nanocellulose Using Ammonium Persulfate and Method’s Comparison with Other Techniques. Key Engineering Materials, 2016, Vol.674, 21.-25.lpp. ISSN 1662-9795. Pieejams: doi:10.4028/www.scientific.net/KEM.674.21

Publikācijas valoda
English (en)
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