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Recyclable fully bi...
Recyclable fully biobased chitosan adsorbents spray-dried in one-pot to microscopic size and enhanced adsorption capacity
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- Feng, Zhaoxuan (författare)
- KTH,Polymerteknologi,Polymer Technology
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- Takahiro, Danjo (författare)
- KTH,Fiber- och polymerteknologi,Department of Biomaterial Sciences, Graduate School of Agricultural and Life Sciences, The University of Tokyo
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- Odelius, Karin (författare)
- KTH,Polymerteknologi
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- Hakkarainen, Minna (författare)
- KTH,Polymerteknologi
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- Tadahisa, Iwata (författare)
- Department of Biomaterial Sciences, Graduate School of Agricultural and Life Sciences, The University of Tokyo
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- Albertsson, Ann-Christine (författare)
- KTH,Polymerteknologi
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(creator_code:org_t)
- 2019-03-28
- 2019
- Engelska.
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Ingår i: Biomacromolecules. - : American Chemical Society (ACS). - 1525-7797 .- 1526-4602. ; 20:5, s. 1956-1964
- Relaterad länk:
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https://urn.kb.se/re...
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https://doi.org/10.1...
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Abstract
Ämnesord
Stäng
- A facile one-pot spray-drying process was developed for fabrication and in-situ crosslinking of chitosan microspheres to improve the adsorption capacity by microscopic design. A fully biobased nature was achieved by utilizing genipin (GP) as a crosslinking agent and chitosan derived nano-graphene oxide (nGO) as a property tuner. The produced chitosan microspheres were further proven as powerful adsorbents for common wastewater contaminants such as anionic dyes and pharmaceutical contaminants, here modelled by methyl orange (MO) and diclofenac sodium (DCF). By regulating the amount of GP and nGO, as well as by controlling the process parameters including the spraydrying inlet temperature and post-heat treatment, the surface morphology, size, zeta potential and adsorption efficiency of the microspheres could be tuned accordingly. The adsorption efficiency for MO and DCF reached 98.9 and 100 %, respectively. The microspheres retained high DCF adsorption efficiency after six adsorption and desorption cycles and the recyclability was improved by incorporated nGO. The fabricated microspheres, thus, have great potential as reusable and eco-friendly adsorbents.
Ämnesord
- NATURVETENSKAP -- Kemi -- Polymerkemi (hsv//swe)
- NATURAL SCIENCES -- Chemical Sciences -- Polymer Chemistry (hsv//eng)
Nyckelord
- In-situ crosslinking
- microspheres
- chitosan
- spray drying
- genipin
- biobased
- recyclable
- Fiber- och polymervetenskap
- Fibre and Polymer Science
Publikations- och innehållstyp
- ref (ämneskategori)
- art (ämneskategori)
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