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Electrospun crosslinked poly-cyclodextrin nanofibers: Highly efficient molecular filtration thru host-guest inclusion
Asli Celebioglu1, Zehra Irem Yildiz2, Tamer Uyar3
1Institute of Materials Science & Nanotechnology, UNAM-National Nanotechnology Research Center, Bilkent University, 06800, Ankara, Turkey. celebioglu@unam.bilkent.edu.tr.
Scientific Reports
|August 9, 2017
Summary
Researchers developed a novel bio-based nanofibrous membrane from cyclodextrins (CD) for efficient water purification. This sustainable material effectively removes organic pollutants like methylene blue, outperforming activated carbon.
Area of Science:
- Materials Science
- Environmental Science
- Chemical Engineering
Background:
- Water pollution poses significant risks to public health and ecosystems.
- There is a critical need for sustainable, cost-effective, and eco-friendly water filtration membranes.
- Conventional filtration materials often have limitations in capacity and environmental impact.
Purpose of the Study:
- To develop a highly efficient molecular filter membrane using bio-renewable cyclodextrins (CD).
- To investigate the pollutant removal capabilities of electrospun poly-CD nanofibrous membranes.
- To compare the performance of poly-CD membranes with existing filtration materials like activated carbon.
Main Methods:
- Production of crosslinked insoluble poly-CD nanofibers via electrospinning without additional polymeric carriers.
- Characterization of the poly-CD nanofibrous membrane's structure and properties.
- Testing the membrane's efficiency in removing methylene blue (MB), a common organic pollutant, under varying concentrations and high flux conditions.
Main Results:
- The poly-CD nanofibrous membrane demonstrated significant affinity for methylene blue.
- The membrane achieved over 90% removal efficiency for concentrated MB solutions (40 mg/L) at a high flux of 3840 Lm⁻²h⁻¹.
- The bio-based membrane exhibited superior removal capacity compared to activated carbon and rapid uptake of MB.
Conclusions:
- Bio-based electrospun poly-CD nanofibrous membranes are highly effective molecular filters for wastewater treatment.
- These membranes offer a sustainable and efficient alternative to conventional filtration materials.
- The developed material shows great promise for addressing water pollution challenges.
