Tags

Type your tag names separated by a space and hit enter

Single-step heterogeneous catalysis production of highly monodisperse spherical nanocrystalline cellulose.
Int J Biol Macromol. 2020 Jul 01; 154:246-255.IJ

Abstract

Highly monodisperse spherical nanocrystalline cellulose (SNCC) was prepared via a rapid single-step heterogeneous hydrolysis technique. The production process was observed to follow first-order kinetics with the reaction rate constant of 42.88 × 10-2 min-1 and the reaction rate of 10.08 × 10-5 mol·L-1·min-1. An inverse correlation was noticed, in the reaction medium, between hydronium ion concentration and MCC concentration. Microscopic analysis showed highly monodisperse nanospheres with an average diameter of 36 nm. The TGA thermal analysis and X-ray diffraction (XRD), revealed significant improvement in crystallinity and crystal size. Increased resistance to thermal degradation was observed for SNCC compared to MCC, producing a final residue three times higher, with a maximum decomposition temperature of 391 °C. As a result, the heterogeneous acid-catalyzed method demonstrated an eco-friendly, effective, and rapid approach for producing nanocellulosic materials with improved crystallinity, morphological and thermal properties.

Authors+Show Affiliations

Chemical and Environmental Engineering, School of Engineering, RMIT University, VIC 3000, Australia.Chemical and Environmental Engineering, School of Engineering, RMIT University, VIC 3000, Australia. Electronic address: nhol.kao@rmit.edu.au.Chemical and Environmental Engineering, School of Engineering, RMIT University, VIC 3000, Australia.

Pub Type(s)

Journal Article

Language

eng

PubMed ID

32145235

Citation

Ahmed-Haras, Mohamed Rashid, et al. "Single-step Heterogeneous Catalysis Production of Highly Monodisperse Spherical Nanocrystalline Cellulose." International Journal of Biological Macromolecules, vol. 154, 2020, pp. 246-255.
Ahmed-Haras MR, Kao N, Ward L. Single-step heterogeneous catalysis production of highly monodisperse spherical nanocrystalline cellulose. Int J Biol Macromol. 2020;154:246-255.
Ahmed-Haras, M. R., Kao, N., & Ward, L. (2020). Single-step heterogeneous catalysis production of highly monodisperse spherical nanocrystalline cellulose. International Journal of Biological Macromolecules, 154, 246-255. https://doi.org/10.1016/j.ijbiomac.2020.02.298
Ahmed-Haras MR, Kao N, Ward L. Single-step Heterogeneous Catalysis Production of Highly Monodisperse Spherical Nanocrystalline Cellulose. Int J Biol Macromol. 2020 Jul 1;154:246-255. PubMed PMID: 32145235.
* Article titles in AMA citation format should be in sentence-case
TY - JOUR T1 - Single-step heterogeneous catalysis production of highly monodisperse spherical nanocrystalline cellulose. AU - Ahmed-Haras,Mohamed Rashid, AU - Kao,Nhol, AU - Ward,Liam, Y1 - 2020/03/05/ PY - 2020/01/06/received PY - 2020/02/19/revised PY - 2020/02/25/accepted PY - 2020/3/8/pubmed PY - 2020/3/8/medline PY - 2020/3/8/entrez KW - Crystal size KW - Final residue KW - Heterogeneous catalysis production KW - Monodisperse nanospheres KW - Spherical nanocrystalline cellulose SP - 246 EP - 255 JF - International journal of biological macromolecules JO - Int. J. Biol. Macromol. VL - 154 N2 - Highly monodisperse spherical nanocrystalline cellulose (SNCC) was prepared via a rapid single-step heterogeneous hydrolysis technique. The production process was observed to follow first-order kinetics with the reaction rate constant of 42.88 × 10-2 min-1 and the reaction rate of 10.08 × 10-5 mol·L-1·min-1. An inverse correlation was noticed, in the reaction medium, between hydronium ion concentration and MCC concentration. Microscopic analysis showed highly monodisperse nanospheres with an average diameter of 36 nm. The TGA thermal analysis and X-ray diffraction (XRD), revealed significant improvement in crystallinity and crystal size. Increased resistance to thermal degradation was observed for SNCC compared to MCC, producing a final residue three times higher, with a maximum decomposition temperature of 391 °C. As a result, the heterogeneous acid-catalyzed method demonstrated an eco-friendly, effective, and rapid approach for producing nanocellulosic materials with improved crystallinity, morphological and thermal properties. SN - 1879-0003 UR - https://www.unboundmedicine.com/medline/citation/32145235/Single-step_heterogeneous_catalysis_production_of_highly_monodisperse_spherical_nanocrystalline_cellulose L2 - https://linkinghub.elsevier.com/retrieve/pii/S0141-8130(20)30139-2 DB - PRIME DP - Unbound Medicine ER -
Try the Free App:
Prime PubMed app for iOS iPhone iPad
Prime PubMed app for Android
Prime PubMed is provided
free to individuals by:
Unbound Medicine.