Ändra sökning
RefereraExporteraLänk till posten
Permanent länk

Direktlänk
Referera
Referensformat
  • apa
  • harvard1
  • ieee
  • modern-language-association-8th-edition
  • vancouver
  • Annat format
Fler format
Språk
  • de-DE
  • en-GB
  • en-US
  • fi-FI
  • nn-NO
  • nn-NB
  • sv-SE
  • Annat språk
Fler språk
Utmatningsformat
  • html
  • text
  • asciidoc
  • rtf
Carbon flake coated cellulose filters as dual function devices for rapid environmental contaminant detection
KTH, Skolan för kemi, bioteknologi och hälsa (CBH), Fiber- och polymerteknologi.
(Engelska)Manuskript (preprint) (Övrigt vetenskapligt)
Nationell ämneskategori
Naturvetenskap
Identifikatorer
URN: urn:nbn:se:kth:diva-249229OAI: oai:DiVA.org:kth-249229DiVA, id: diva2:1304047
Anmärkning

QC 20190411

Tillgänglig från: 2019-04-11 Skapad: 2019-04-11 Senast uppdaterad: 2019-04-11Bibliografiskt granskad
Ingår i avhandling
1. Hydrothermal recycling of natural and synthetic polymers to functional carbon materials
Öppna denna publikation i ny flik eller fönster >>Hydrothermal recycling of natural and synthetic polymers to functional carbon materials
2019 (Engelska)Doktorsavhandling, sammanläggning (Övrigt vetenskapligt)
Abstract [en]

Utilizing renewable recourses and waste recycling are necessary for reaching a circular resource society. The concept of this thesis was to set up a sustainable recycling route, suitable even for low quality biopolymer and plastic waste for production of functional carbon materials. Carbonaceous materials were prepared by mild hydrothermal carbonizations of cellulose and polypropylene (PP) under acidic conditions. The carbonization of cellulose resulted mainly in micro-/nanometer sized carbon spheres (CS) with polar functionalities. After carbonization of PP, products were found in solid and liquid phase. Completely carbonized solid carbons products were obtained from PP at 250 °C after 60 min. The liquid products from the same process displayed aromatics and exhibited fluorescence properties. In addition, new carbon materials were prepared by acid, base and thermal treatments of the carbonized products at low temperatures. Thermally resistant carbon products and antibacterial CS towards both Staphylococcus aureus and Pseudomonas aeruginosa were demonstrated as possible applications for these products. The minimum inhibitory concentrations of CS were 200-400 µg mL-1 depending on the bacteria strain and reached after only 3 h. Furthermore, nanometer sized carbon nanodots with high oxygenation degree and fluorescence properties were derived together with carbon flakes (CF) from the carbonized products. The CF with flat and micrometer sized morphology and polar groups were utilized for coating of cationized cellulose filters, applied as adsorbents and then subsequently as surfaces for SALDI-MS analysis of environmental contaminants. This work contributes with new routes to and applications for functional carbon materials.

Ort, förlag, år, upplaga, sidor
KTH Royal Institute of Technology, 2019. s. 75
Serie
TRITA-CBH-FOU ; 2019:18
Nationell ämneskategori
Naturvetenskap
Identifikatorer
urn:nbn:se:kth:diva-248720 (URN)978-91-7873-156-5 (ISBN)
Disputation
2019-05-09, sal F3, Lindstedtsvägen 26, Stockholm, 10:00 (Engelska)
Opponent
Handledare
Anmärkning

QC 20190411

Tillgänglig från: 2019-04-11 Skapad: 2019-04-10 Senast uppdaterad: 2019-04-23Bibliografiskt granskad

Open Access i DiVA

Fulltext saknas i DiVA

Sök vidare i DiVA

Av författaren/redaktören
Adolfsson, Karin
Av organisationen
Fiber- och polymerteknologi
Naturvetenskap

Sök vidare utanför DiVA

GoogleGoogle Scholar

urn-nbn

Altmetricpoäng

urn-nbn
Totalt: 116 träffar
RefereraExporteraLänk till posten
Permanent länk

Direktlänk
Referera
Referensformat
  • apa
  • harvard1
  • ieee
  • modern-language-association-8th-edition
  • vancouver
  • Annat format
Fler format
Språk
  • de-DE
  • en-GB
  • en-US
  • fi-FI
  • nn-NO
  • nn-NB
  • sv-SE
  • Annat språk
Fler språk
Utmatningsformat
  • html
  • text
  • asciidoc
  • rtf