Change search
CiteExportLink to record
Permanent link

Direct link
Cite
Citation style
  • apa
  • harvard1
  • ieee
  • modern-language-association-8th-edition
  • vancouver
  • Other style
More styles
Language
  • de-DE
  • en-GB
  • en-US
  • fi-FI
  • nn-NO
  • nn-NB
  • sv-SE
  • Other locale
More languages
Output format
  • html
  • text
  • asciidoc
  • rtf
Drying and Pyrolysis of Cellulose Nanofibers from Wood, Bacteria, and Algae for Char Application in Oil Absorption and Dye Adsorption
KTH, School of Chemical Science and Engineering (CHE), Fibre and Polymer Technology, Polymeric Materials.
Show others and affiliations
2017 (English)In: ACS SUSTAINABLE CHEMISTRY & ENGINEERING, ISSN 2168-0485, Vol. 5, no 3, 2679-2692 p.Article in journal (Refereed) Published
Abstract [en]

Native cellulose nanofibers (CNF) constitute an abundant resource for pyrolysis leading to char materials offering a wide range of properties and application possibilities. With the aim to produce chars having large surface area and pore volume for dyes adsorption and oil absorption, respectively, we herein explore the slow pyrolysis process of cellulose nanofibers from wood, Cladophora algae and bacteria that were subjected to various drying routes. Whereas algae CNF with their large crystallites lead to high surface area (S-BET) substrates using conventional drying from aqueous suspension, CNF from wood having smaller crystallites requires drying from solvents to reach high S-BET substrates, which results in chars with a good adsorption capacity for both anionic and cationic dyes. Moreover, the porosity of the CNF substrate can be tuned via an ice-templating freeze-drying procedure reaching values as high as 99.7% and corresponding chars capable of absorbing 64-120 g g(-1) of various oils and organic solvents. Besides the absorption/adsorption properties of the chars, we report effects of CNF source and structure on the thermal properties assessed by thermogravimetric and thermomechanical analyses, differential scanning calorimetry, and mass spectrometry, and we identified over 20 decomposition products and 3 expansion events occurring during CNF pyrolysis.

Place, publisher, year, edition, pages
AMER CHEMICAL SOC , 2017. Vol. 5, no 3, 2679-2692 p.
Keyword [en]
Cellulose nanomaterials, Thermal decomposition, Activation energy, TG-MS, Thermomechanical analysis, Environmental remediation
National Category
Polymer Technologies
Identifiers
URN: urn:nbn:se:kth:diva-205479DOI: 10.1021/acssuschemeng.6b03027ISI: 000395846900072Scopus ID: 2-s2.0-85014557865OAI: oai:DiVA.org:kth-205479DiVA: diva2:1094719
Note

QC 20170510

Available from: 2017-05-10 Created: 2017-05-10 Last updated: 2017-05-10Bibliographically approved

Open Access in DiVA

No full text

Other links

Publisher's full textScopus

Search in DiVA

By author/editor
Olsson, Richard
By organisation
Polymeric Materials
Polymer Technologies

Search outside of DiVA

GoogleGoogle Scholar

Altmetric score

Total: 2 hits
CiteExportLink to record
Permanent link

Direct link
Cite
Citation style
  • apa
  • harvard1
  • ieee
  • modern-language-association-8th-edition
  • vancouver
  • Other style
More styles
Language
  • de-DE
  • en-GB
  • en-US
  • fi-FI
  • nn-NO
  • nn-NB
  • sv-SE
  • Other locale
More languages
Output format
  • html
  • text
  • asciidoc
  • rtf