Preparation of Nanocellulose Using Ammonium Persulfate and Method’s Comparison with other Techniques
| Autor: | Linda Rozenberga, Inese Sable, Uldis Grinfelds, Marianna Laka, Laura Vikele, Linda Vecbiškena |
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| Rok vydání: | 2016 |
| Předmět: |
Materials science
Mechanical Engineering Inorganic chemistry Nanoparticle 02 engineering and technology 010402 general chemistry 021001 nanoscience & nanotechnology 01 natural sciences 0104 chemical sciences Nanocellulose chemistry.chemical_compound Crystallinity chemistry Chemical engineering Mechanics of Materials Zeta potential Particle General Materials Science Ammonium persulfate Acid hydrolysis Cellulose 0210 nano-technology |
| Zdroj: | Key Engineering Materials. 674:21-25 |
| ISSN: | 1662-9795 |
| Popis: | 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. |
| Databáze: | OpenAIRE |
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