THE EFFECT OF ACID MODIFICATION ON ADSORPTION OF ORTHO-NITROPHENOL FROM AQUEOUS SOLUTION BY MULTI WALL CARBON NANOTUBES AND CONICAL CARBON NANOFIBERS: CHARACTERIZATION, MODELLING AND PERFORMANCE

Authors

  • Hamza Asmaly Department of Chemical Engineering and Sustainability, Kulliyyah of Engineering, IIUM https://orcid.org/0000-0003-4017-9423
  • Nassereldeen Kabbashi Department of Chemical Engineering and Sustainability, Kulliyyah of Engineering, IIUM https://orcid.org/0000-0002-1524-5065
  • MD Zahangir Alam Department of Chemical Engineering and Sustainability, Kulliyyah of Engineering, IIUM https://orcid.org/0000-0002-6491-3218
  • Ma’an Al-Khatib Department of Chemical Engineering and Sustainability, Kulliyyah of Engineering, IIUM
  • Adam Sulaman king Fahd University of Petroleum and Minerals

Keywords:

2-Nitrophenol, Conical Carbon nanofibers, Multiwall Carbon nanotubes, Adsorbent, Adsorption.

Abstract

This study examined the absorption of ortho-nitrophenol onto Conical carbon nanofibers (CCNFs) and multi-wall carbon nanotubes (MCNTs). The properties of the CNTs and CNFs were analyzed using various techniques such as X-ray diffraction, scanning electron microscopy, Fourier-transform infrared spectroscopy, Brunauer-Emmett-Teller for surface area analysis, Energy dispersive X-ray spectroscopy, and transmission electron microscopy. The study investigated the effectiveness of hydrochloric acid-activated the surface of both CNTs and CNFs in removing 2-NitroPhenol ions from an aqueous solution. The Central-Composite design of RSM was employed to study the impact of solution pH, agitation speed, adsorption time, and adsorbent dosage on the adsorption process and then optimize these parameters for the removal of 2-NP. The results of the optimization revealed that the best conditions for removing 2-Nitro Phenol were pH 6.6, for 68.0 minutes, at 80 rpm agitation and 108mg of absorbent. Additionally, the effect of the initial concentration was evaluated, and the adsorption capacity of the nano-activated carbon adsorbents was calculated. The study found that multi-wall carbon nanotubes (MWCNTs) with a high surface area are more effective than Conical carbon nanofibers (CCNFs) in reducing 2-NP from an aqueous solution, making MWCNTs a potentially useful material in the fight against environmental pollution.

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Published

2023-07-26

How to Cite

Asmaly, H., Kabbashi, N., Alam, M. Z., Al-Khatib, M., & Sulaman, A. (2023). THE EFFECT OF ACID MODIFICATION ON ADSORPTION OF ORTHO-NITROPHENOL FROM AQUEOUS SOLUTION BY MULTI WALL CARBON NANOTUBES AND CONICAL CARBON NANOFIBERS: CHARACTERIZATION, MODELLING AND PERFORMANCE. Chemical and Natural Resources Engineering Journal (Formally Known As Biological and Natural Resources Engineering Journal), 7(1), 58–89. Retrieved from https://journals.iium.edu.my/bnrej/index.php/bnrej/article/view/86