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Facile preparation of cellulose nanocrystals/ZnO hybrids using acidified ZnCl2 as cellulose hydrolytic media and ZnO precursor.
Int J Biol Macromol. 2023 Feb 01; 227:863-871.IJ

Abstract

Hybridization of nanocellulose with zinc oxide nanoparticles can improve the dispersibility of the zinc oxide and bring new functions to the bio-based products. In this study, cellulose nanocrystal/zinc oxide (CNC/ZnO) nanohybrids with reinforcing and antibacterial properties were prepared via a facile one-pot route. Microcrystalline cellulose (MCC) was first treated with acidified zinc chloride and hydrolyzed into CNCs, which then served as a stabilizing and supporting agent for the in-situ growth of ZnO nanoparticles during subsequent chemical precipitation. The acidified ZnCl2 solution played a dual role, acting both as cellulose hydrolytic media and as ZnO precursor. By adjusting the pH of the zinc precursor solution (pH = 9-12), well-dispersed rod-like (length: 137.0-468.0 nm, width: 54.1-154.1 nm) and flower-like (average diameter: 179.6 nm) ZnO nanoparticles with hexagonal wurtzite structure were obtained. CNC/ZnO nanohybrids were incorporated into waterborne polyurethane (WPU) films. The Young's modulus and tensile strength of the nanocomposite films increased gradually from 154.8 to 509.0 MPa and from 16.5 to 29.9 MPa, respectively, with increasing CNC/ZnO nanofiller content up to 10 wt%. The 10 % CNC/ZnO composites showed inhibition rates to both E. coli and S. aureus above 88.8 %.

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Publisher Full Text (DOI)

Authors+Show Affiliations

Kang J
College of Materials and Energy, South China Agricultural University, Guangzhou, 510642, PR China.
Hu C
College of Materials and Energy, South China Agricultural University, Guangzhou, 510642, PR China.
Dichiara A
School of Environmental and Forest Sciences, University of Washington, Seattle, WA 98195, USA.
Guan L
College of Materials and Energy, South China Agricultural University, Guangzhou, 510642, PR China.
Yun H
College of Materials and Energy, South China Agricultural University, Guangzhou, 510642, PR China.
Gu J
College of Materials and Energy, South China Agricultural University, Guangzhou, 510642, PR China. Electronic address: gujin@scau.edu.cn.

MeSH

Zinc OxideStaphylococcus aureusEscherichia coliNanoparticlesCelluloseNanocomposites

Pub Type(s)

Journal Article

Language

eng

PubMed ID

36535352

Citation

Kang, Jiancong, et al. "Facile Preparation of Cellulose nanocrystals/ZnO Hybrids Using Acidified ZnCl2 as Cellulose Hydrolytic Media and ZnO Precursor." International Journal of Biological Macromolecules, vol. 227, 2023, pp. 863-871.
Kang J, Hu C, Dichiara A, et al. Facile preparation of cellulose nanocrystals/ZnO hybrids using acidified ZnCl2 as cellulose hydrolytic media and ZnO precursor. Int J Biol Macromol. 2023;227:863-871.
Kang, J., Hu, C., Dichiara, A., Guan, L., Yun, H., & Gu, J. (2023). Facile preparation of cellulose nanocrystals/ZnO hybrids using acidified ZnCl2 as cellulose hydrolytic media and ZnO precursor. International Journal of Biological Macromolecules, 227, 863-871. https://doi.org/10.1016/j.ijbiomac.2022.12.107
Kang J, et al. Facile Preparation of Cellulose nanocrystals/ZnO Hybrids Using Acidified ZnCl2 as Cellulose Hydrolytic Media and ZnO Precursor. Int J Biol Macromol. 2023 Feb 1;227:863-871. PubMed PMID: 36535352.
* Article titles in AMA citation format should be in sentence-case
TY - JOUR T1 - Facile preparation of cellulose nanocrystals/ZnO hybrids using acidified ZnCl2 as cellulose hydrolytic media and ZnO precursor. AU - Kang,Jiancong, AU - Hu,Chuanshuang, AU - Dichiara,Anthony, AU - Guan,Litao, AU - Yun,Hong, AU - Gu,Jin, Y1 - 2022/12/16/ PY - 2022/08/20/received PY - 2022/11/18/revised PY - 2022/12/11/accepted PY - 2022/12/20/pubmed PY - 2022/12/20/medline PY - 2022/12/19/entrez KW - Acidified zinc chloride KW - Cellulose nanocrystals KW - Controllable preparation KW - Nanohybrids KW - Waterborne polyurethane KW - Zinc oxide nanoparticles SP - 863 EP - 871 JF - International journal of biological macromolecules JO - Int J Biol Macromol VL - 227 N2 - Hybridization of nanocellulose with zinc oxide nanoparticles can improve the dispersibility of the zinc oxide and bring new functions to the bio-based products. In this study, cellulose nanocrystal/zinc oxide (CNC/ZnO) nanohybrids with reinforcing and antibacterial properties were prepared via a facile one-pot route. Microcrystalline cellulose (MCC) was first treated with acidified zinc chloride and hydrolyzed into CNCs, which then served as a stabilizing and supporting agent for the in-situ growth of ZnO nanoparticles during subsequent chemical precipitation. The acidified ZnCl2 solution played a dual role, acting both as cellulose hydrolytic media and as ZnO precursor. By adjusting the pH of the zinc precursor solution (pH = 9-12), well-dispersed rod-like (length: 137.0-468.0 nm, width: 54.1-154.1 nm) and flower-like (average diameter: 179.6 nm) ZnO nanoparticles with hexagonal wurtzite structure were obtained. CNC/ZnO nanohybrids were incorporated into waterborne polyurethane (WPU) films. The Young's modulus and tensile strength of the nanocomposite films increased gradually from 154.8 to 509.0 MPa and from 16.5 to 29.9 MPa, respectively, with increasing CNC/ZnO nanofiller content up to 10 wt%. The 10 % CNC/ZnO composites showed inhibition rates to both E. coli and S. aureus above 88.8 %. SN - 1879-0003 UR - https://www.unboundmedicine.com/medline/citation/36535352/Facile_preparation_of_cellulose_nanocrystals/ZnO_hybrids_using_acidified_ZnCl2_as_cellulose_hydrolytic_media_and_ZnO_precursor_ DB - PRIME DP - Unbound Medicine ER -