Optimization and Production of Polyacrylonitrile Based Activated Carbon Nanofibers for Dye Wastewater Treatment

Document Type : Original Article

Author

Department of Carpet, Art University of Shiraz, Shiraz, Iran

Abstract

In the last decade, carbon nanofibers have been considered as an effective adsorbent in the removal of water and wastewater pollutants due to their specific properties such as high surface area and length to diameter ratio. Increasing the surface porosity and surface area of special carbon nanofibers by physical and chemical activation methods have increased their efficiency in removing pollutants. In this study, the activated carbon nanofibers were produced in four steps of electrospinning of polyacrylonitrile solution in dimethylformamide as precursor, followed by stabilization, carbonization and physical activation of electrospun nanofibers. At each stage of production, by changing the parameters affecting the process and analyzing the final product with DSC, FTIR, XRD, SEM and BET tests, optimum production conditions were determined to achieve maximum stabilization, carbonization and activation efficiency. Finally, produced activated carbon nanofibers applied as an adsorbent in removal treatment dye solution and were able to absorb 20-37% more than other conventional adsorbents such as chitin and activated carbon. 

Keywords

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References

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Journal of Color Science and Technology
Volume 14, Issue 4
January 2021
Pages 281-294

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