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Highly Porous Materials of Cellulose from Agricultural Residues

Costa, Diogo and Ganesan, Kathirvel and Sahraeian, Razmehr and Deyholos, Michael and Pakpour, Sepideh and Milow, Barbara (2021) Highly Porous Materials of Cellulose from Agricultural Residues. In: 7th International Polysaccharide Conference - Book of Abstracts, p. 75. EPNOE. 7th International Polysaccharide Conference, 11-15 Oct 2021, Nantes, France.

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Official URL: https://symposium.inrae.fr/epnoe2021/content/download/5654/62880/version/4/file/BOOK%20EPNOE%20final.pdf


Aerogels of cellulose are one of the classes open porous lightweight materials. We have acquired good experience in preparing cellulose aerogels in various dimensions such as monoliths, fibres, beads, sheets and scaffolds.1-6 With our expertise, we are developing simple and convenient methodologies to prepare cellulose aerogels from agricultural residues. The preliminary data will be presented in this conference. The raw materials of hemp and flax fibres have been converted to high grade cellulose powder by alkali/acid hydrolysis and then followed by treatment with oxidizing medium (bleaching). Cellulose wet gels have been prepared by dissolution method using molten-salt hydrate or NaOH-Urea-Water as solvent medium. The physical properties of classical cellulose aerogels will be compared with the aerogels produced from the agricultural residues. In addition, the influence of regeneration bath on physical properties of cellulose aerogels have been studied. Strong hydrochloric acid and various simple organic acids such as acetic acid, lactic acid, gluconic acid and citric acid have been employed. In comparison with the aerogels prepared from strong hydrochloric acid, homogeneous distribution of nanofibers has been observed for the samples from organic acids. All samples have been characterized by nitrogen adsorption-desorption isotherm, BJH pore data analyses, density analyses, Powder X-ray diffraction, FTIR and scanning electron microscopy.

Item URL in elib:https://elib.dlr.de/145560/
Document Type:Conference or Workshop Item (Speech)
Title:Highly Porous Materials of Cellulose from Agricultural Residues
AuthorsInstitution or Email of AuthorsAuthor's ORCID iD
Costa, Diogodiogo.costa (at) dlr.deUNSPECIFIED
Ganesan, Kathirvelk.ganesan (at) dlr.dehttps://orcid.org/0000-0002-4876-5366
Sahraeian, Razmehrrsahraei (at) smail.uni-koeln.deUNSPECIFIED
Deyholos, Michaeldeyholos (at) ualberta.caUNSPECIFIED
Pakpour, Sepidehsepideh.pakpour (at) ubc.caUNSPECIFIED
Milow, BarbaraBarbara.Milow (at) dlr.dehttps://orcid.org/0000-0002-6350-7728
Date:12 October 2021
Journal or Publication Title:7th International Polysaccharide Conference - Book of Abstracts
Refereed publication:Yes
Open Access:No
Gold Open Access:No
In ISI Web of Science:No
Page Range:p. 75
EditorsEmailEditor's ORCID iD
Budtova, Tatianatatiana.budtova@mines-paristech.frhttps://orcid.org/0000-0003-1835-2146
Keywords:polysaccharide; aerogels; hemp; flax; cellulose; beads;
Event Title:7th International Polysaccharide Conference
Event Location:Nantes, France
Event Type:international Conference
Event Dates:11-15 Oct 2021
HGF - Research field:Aeronautics, Space and Transport
HGF - Program:Transport
HGF - Program Themes:Road Transport
DLR - Research area:Transport
DLR - Program:V ST Straßenverkehr
DLR - Research theme (Project):V - NGC Fahrzeugstruktur II
Location: Köln-Porz
Institutes and Institutions:Institute of Materials Research > Aerogels and Aerogel Composites
Deposited By: Amaral Santos Costa, Diogo Manuel
Deposited On:12 Nov 2021 09:12
Last Modified:06 Dec 2021 09:42

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