Selective denitrification of a simulated oily wastewater using Janus-structured carbon nanotubes

• Author(s): Roman, Fernanda ; Sanches, Flávia Kim ; Silva, Adriano S. ; Díaz de Tuesta, Jose Luis ; Marin, Pricila ; Machado, Bruno ; Serp, Philippe ; Silva, Adrián ; Faria, Joaquim ; Gomes, Helder
• Date: 2022
• Persistent ID: http://hdl.handle.net/10198/27210
• Origin: Biblioteca Digital do IPB
• Subject(s): Carbon nanotubes; Research Subject Categories::TECHNOLOGY::Bioengineering
• Document Type: Conference object
• Language: English
• Contributor(s): Biblioteca Digital do IPB

Description

Carbon nanotubes (CNTs) bearing a Janus-like structure were synthesized by chemical vapor deposition considering ethylene and acetonitrile as carbon and nitrogen sources. The developed materials were applied as catalyst in the oxidation of 4-nitrophenol (4-NP) dissolved in a biphasic medium (water/2,2,4-trimeylpentane) simulating a contaminated oily wastewater. The CNT prepared using both ethylene and acetonitrile precursors shows a Janus-structure, leading to the highest abatement of 4-NP as well as to the highest removal of TOC, proving to be an alternative towards the removal of lipophilic pollutants from oily effluents, allowing to reclaim the oily phase.