The use of carbon nanotube yarn as a filter medium to treat nitroaromatic-contaminated water

Sushil R. Kanel; Heath Misak; Dhriti Nepal; Shankar Mall; Seth W. Brittle; Ioana Sizemore; David M. Kempisty; Mark N. Goltz

doi:10.1016/S1872-5805(16)60021-5

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Article Navigation > New Carbon Mater. > 2016 > 31(4): 415-423

Sushil R. Kanel, Heath Misak, Dhriti Nepal, Shankar Mall, Seth W. Brittle, Ioana Sizemore, David M. Kempisty, Mark N. Goltz. The use of carbon nanotube yarn as a filter medium to treat nitroaromatic-contaminated water. New Carbon Mater., 2016, 31(4): 415-423. doi: 10.1016/S1872-5805(16)60021-5

Citation:

Sushil R. Kanel, Heath Misak, Dhriti Nepal, Shankar Mall, Seth W. Brittle, Ioana Sizemore, David M. Kempisty, Mark N. Goltz. The use of carbon nanotube yarn as a filter medium to treat nitroaromatic-contaminated water. New Carbon Mater., 2016, 31(4): 415-423. doi: 10.1016/S1872-5805(16)60021-5

Citation:

Sushil R. Kanel, Heath Misak, Dhriti Nepal, Shankar Mall, Seth W. Brittle, Ioana Sizemore, David M. Kempisty, Mark N. Goltz. The use of carbon nanotube yarn as a filter medium to treat nitroaromatic-contaminated water. New Carbon Mater., 2016, 31(4): 415-423. doi: 10.1016/S1872-5805(16)60021-5

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The use of carbon nanotube yarn as a filter medium to treat nitroaromatic-contaminated water

doi: 10.1016/S1872-5805(16)60021-5

1.
Department of Systems Engineering and Management, Air Force Institute of Technology, 2950 Hobson Way, Wright-Patterson AFB, OH 45433-7765, USA;
2.
Department of Aeronautics and Astronautics, Air Force Institute of Technology, 2950 Hobson Way, Wright-Patterson AFB, OH 45433-7765, USA;
3.
Materials and Manufacturing Directorate, Air Force Research Laboratory, Wright-Patterson AFB, Ohio 45433-7702, USA;
4.
Department of Chemistry, Wright State University, 3640 Colonel Glen Highway, Dayton, OH 45435, USA

Received Date: 2016-05-30
Accepted Date: 2016-08-29
Rev Recd Date: 2016-07-30
Publish Date: 2016-08-28

Abstract

Abstract

Carbon nanotube yarn (CNTY) is a promising material for the removal of organic contaminants from aqueous waste streams owing to its extraordinary mechanical strength, chemical stability, thermal stability and high surface area. CNTY was used to treat water contaminated with a model nitroaromatic compound, 2,4-dinitrotoluene (DNT). The isotherms and kinetics of DNT adsorption onto CNTY were investigated. The adsorption capacities of DNT were compared with the literature values of alternative sorbents. SEM-EDX, HR-TEM, Raman spectroscopy and XPS were used to characterize the size, surface morphology and surface chemistry of the CNTY before and after DNT adsorption. Results indicate that adsorption isotherm of DNT onto CNTY could be fitted by the Freundlich isotherm with a Freundlich constant, K_F, of 55.0 mg/g (L/mg)^1/n and a Freundlich exponent, 1/n, of 0.737. Adsorption kinetics can be formulated by the pseudo-second order kinetic model. This study demonstrates the ability of CNTY to remove organic contaminants from water.
- Carbon nanotube yarn,
- 2,4-dinitrotoluene,
- Adsorption,
- Freundlich isotherm,
- Emerging technology

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