Cellulose microfiber extraction from leftover celery pulp: Chemomechanical treatments, structural, morphological, and thermal characterization.

Autor: Abzan N; Faculty of Petroleum and Chemical Engineering, Science and Research Branch, Islamic Azad University, Iran. Electronic address: nooshin.abzan@gmail.com., Abbasian A; Faculty of Petroleum and Chemical Engineering, Science and Research Branch, Islamic Azad University, Iran. Electronic address: abbasian.a@srbiau.ac.ir., Jonoobi M; Department of Wood and Paper Science and Technology, Faculty of Natural Resources, University of Tehran, Iran. Electronic address: mehdi.jonoobi@ut.ac.ir., Ghasemi I; Faculty of Processing, Iran Polymer and Petrochemical Institute, Iran. Electronic address: i.ghasemi@ippi.ac.ir.
Jazyk: angličtina
Zdroj: International journal of biological macromolecules [Int J Biol Macromol] 2023 Dec 31; Vol. 253 (Pt 3), pp. 126834. Date of Electronic Publication: 2023 Sep 13.
DOI: 10.1016/j.ijbiomac.2023.126834
Abstrakt: Based on the variety of attractive applicability and structural advantages, cellulose is suggested as a sustainable and environmentally-friendly replacement for petroleum-based materials. Therefore, the current study proposed two chemo-mechanical treatments including bleaching with sodium chlorite and sodium hypochlorite for pure cellulose extraction from leftover celery pulp (Apium graveolens var. dulce). The characterizations of the extracted cellulose fibers were measured and analyzed, by using FT-IR, XRD, optical microscopy, FE-SEM, and TGA analysis. FTIR analysis confirmed the successful removal of non-cellulosic and impurities materials by chemical treatments. Analyzing the X-ray diffraction showed that the proposed chemo-mechanical procedures did not have damaging impacts on the cellulose crystalline structure. Microscopies analysis within optical microscopy and FE-SEM indicated that the diameters of the untreated fibers generally ranged from 100 to 150 μm, while for the treated ones, they ranged from 10 to 15 μm. The TGA results illustrated the higher initial degradation temperatures for the treated samples which led to significant improvement in their thermal stabilities.
Competing Interests: Declaration of competing interest The authors declare that they have no known competing financial interests or personal relationships that could have appeared to influence the work reported in this paper.
(Copyright © 2023 Elsevier B.V. All rights reserved.)
Databáze: MEDLINE
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