Fabrication of cellulose nanoparticles through electrospraying. Issue 6 (1st May 2018)

• Record Type: Journal Article
• Authors: Kadivar, Nastaran; Tavanai, Hossein; Allafchian, Alireza
• Is Part Of: IET nanobiotechnology. Volume 12:Issue 6(2018)
• Page Start: 807
• Page End: 813
• Publication Date: 2018-05-01
• Subjects: polymers -- nanoparticles -- nanofabrication -- spraying -- molecular weight -- particle size -- Fourier transform infrared spectra -- X‐ray diffraction -- polymer structure; cellulose nanoparticles -- electrospraying -- N, N‐dimethylacetamide‐lithium chloride solvent -- molecular weight -- solution concentration -- feed rate -- nozzle‐collector distance -- Fourier transform infrared analysis -- X‐ray diffraction -- XRD -- crystallinity -- cellulose powder -- voltage 15 kV to 23 kV; Biotechnology -- Periodicals; Nanotechnology -- Periodicals; 660.6
• DOI: 10.1049/iet-nbt.2018.0044
• Languages: English
• ISSNs: 1751-8741

Abstract

Abstract : This study reports the fabrication of cellulose nanoparticles through electrospraying the solution of cellulose in N, N ‐dimethylacetamide/lithium chloride solvent as well as investigating the effect of electrospraying conditions and molecular weight on the average size of electrosprayed nanoparticles. Electrospraying of cellulose was carried out with the following range for each factor, namely concentration = 1–3 wt%, voltage = 15–23 kV, nozzle–collector distance = 10–25 cm, and feed rate = 0.03–0.0875 ml/h. The smallest nanoparticles had an average size of around 40 nm. Results showed that lowering the solution concentration and feed rate, as well as increasing the nozzle–collector distance and applied voltage led to a decrease in the average size of the electrosprayed cellulose nanoparticles. Fourier transform infrared analysis proved that no chemical change had occurred in the cellulose structure after the electrospraying process. According to X‐ray diffraction (XRD) results, cellulose nanoparticles showed a lower degree of crystallinity in comparison with the raw cellulose powder. XRD results also proved the absence of LiCl salt in the electrosprayed nanoparticles.