Journal
JOURNAL OF THE TAIWAN INSTITUTE OF CHEMICAL ENGINEERS
Volume 113, Issue -, Pages 223-230Publisher
ELSEVIER
DOI: 10.1016/j.jtice.2020.08.011
Keywords
Ni/NiO nanostructure; Adsorption kinetics; Isotherm; Heavy metal ion
Categories
Funding
- GGSIPU
- GGSIPU [DRC/GGSIPU/FRGS/USCT/Dr. Tapan Sarkar/2016-17-34]
Ask authors/readers for more resources
A polymer-assisted one-pot synthesis of Ni/NiO core-shell type nanomaterial and the assessment of Ni/NiO as a potential adsorbent for heavy metal removal has been reported. The controlled synthesis process enables the formation of nanoparticle with magnetic properties, which facilitates separating the nanoparticles easily from aqueous media in the presence of an external magnet. The formation of the Ni/NiO nanostructure was confirmed through structural and spectroscopic characterizations. The experimental results suggested that the adsorption capacities of Ni/NiO were similar to 308 mg g(-1) and similar to 172 mg g(-1) for Pb (II) and Cd (II) ions, respectively. Time-dependent adsorption studies indicated that the adsorption of heavy metal ions on Ni/NiO is primarily dominated by film diffusion and follows a pseudo-second-order kinetics equation. The equilibrium experiment results suggested that heavy metal ion adsorption on Ni/NiO is a physical adsorption process and follows the Langmuir isotherm model. The thermodynamic parameters (Delta H and Delta G) computed from the temperature-dependent adsorption experiments indicated endothermicity spontaneity of the adsorption process. (C) 2020 Taiwan Institute of Chemical Engineers. Published by Elsevier B.V. All rights reserved.
Authors
I am an author on this paper
Click your name to claim this paper and add it to your profile.
Reviews
Recommended
No Data Available