The Effect of Oxidation Temperature on Activating Commercial Viscose Rayon-Based Carbon Fibers to Make the Activated Carbon Fibers (ACFs)

Article Preview

Abstract:

In this work, commercial Viscose (cellulosic based precursor) rayon-based carbon fibers were oxidized to make activated carbon fibers (ACFs). Carbon fibers were made from Viscose fibers in carbonization process at 1200°C. The ultimate carbon fibers possessed carbon content above 94 mass% and fiber dimension about 8 mm. These fibers were activated to make ACFs by oxidizing gas such as steam of carbon dioxide. The experiments were conducted at temperature ranged from 800°C to 900°C with carbonic steam’s flow of 3 l.min-1. The vaporous benzene adsorbability of activated carbon fibers was then measured by Mark Bell method. The adsorbability (a) and specific surface area (ABET) of ACFs were determined. The properties of the produced ACFs were investigated and analyzed by SEM and TEM imaging. The results showed that obtained fibers have maximum benzene adsorbability of 4.58 mmol.g-1 and BET surface area reached 1357 m2.g-1. These activated carbon fibers were able to use for toxic chemical prevention equipment.

You might also be interested in these eBooks

Info:

Periodical:

Pages:

171-176

Citation:

Online since:

April 2020

Export:

Price:

* - Corresponding Author

[1] Harry Marsh, Francisco Rodriguez-Reinoso, Activated Carbon – Chapter 4: Characterization of Activated Carbon, Elsevier Science & Technology Books, (2006).

Google Scholar

[2] K. Gurudatt, V. S. Tripathi & A.K. Sen, Adsorbent Carbon Fabric: New Generation Armour for Toxic Chemicals, Defence Science Journal, Vol 47, No 2, DESIDOC, (1997).

DOI: 10.14429/dsj.47.4005

Google Scholar

[3] Y. Chen, N. Jiang, L. Sun and I. Negulescu, Activated Carbon Nonwoven as Chemical Protective Materials, RJTA Vol. 10, No. 3, (2006).

Google Scholar

[4] A.C. Lua, and J. Guo, Activated carbon prepared from oil palm stone by one-step CO2 activation for gaseous pollutant removal,, Carbon, Vol. 38, No. 7, pp.1089-1097, (2000).

DOI: 10.1016/s0008-6223(99)00231-6

Google Scholar

[5] Y. Guo, and D.A. Rockstraw, Activated carbons prepared from rice hull by one-step phosphoric acid activation,, Microporous and Mesoporous Materials, Vol. 100, No. 1-3, pp.12-19, (2007).

DOI: 10.1016/j.micromeso.2006.10.006

Google Scholar

[6] Nguyen Huu Son, Pham Van Cuong, Vu Le Hoang, Le Thai Hung, Effect of catalyst content on stabilization of commercial viscose fibers used as carbon fiber precursor, J. Science and Technology of Metals, No76, pp.38-43, (2018).

Google Scholar

[7] Nguyen Huu Son, Vu Le Hoang, Pham Van Cuong, Le Thai Hung, Producing of Carbon Fibers from Commercial Viscose Fibers', Proceedings of the first international conference on materials, machines and methods for sustainable development, Danang, Vietnam, Vol2, pp.737-743, 18-19 May (2018).

DOI: 10.4028/www.scientific.net/amm.889.58

Google Scholar

[8] Harry Marsh, Francisco Rodriguez-Reinoso, Activated Carbon – Chapter 5: Activation Processes (Thermal or Physical), Elsevier Science & Technology Books, (2006).

Google Scholar

[9] Harry Marsh, Francisco Rodriguez-Reinoso, Activated Carbon – Chapter 7: SEM and TEM Images of Structures in Activated Carbon, Elsevier Science & Technology Books, (2006).

DOI: 10.1016/b978-008044463-5/50021-2

Google Scholar