Tehran University of Medical Sciences

Science Communicator Platform

Stay connected! Follow us on X network (Twitter):
Share this content! On (X network) By
Rapid Removal of Noxious Nickel (Ii) Using Novel Γ-Alumina Nanoparticles and Multiwalled Carbon Nanotubes: Kinetic and Isotherm Studies Publisher



Agarwal S1 ; Tyagi I1 ; Gupta VK1 ; Dehghani MH2, 3 ; Jaafari J3, 4 ; Balarak D5 ; Asif M6
Authors
Show Affiliations
Authors Affiliations
  1. 1. Department of Applied Chemistry, University of Johannesburg, Johannesburg, South Africa
  2. 2. Department of Environmental Health Engineering, School of Public Health, Tehran University of Medical Sciences, Tehran, Iran
  3. 3. Institute for Environmental Research, Center for Solid Waste Research, Tehran University of Medical Sciences, Tehran, Iran
  4. 4. Department of Environmental Health, School of Public Health, Guilan University of Medical Sciences, Rasht, Iran
  5. 5. Health Promotion Research Center, Zahedan University of Medical Sciences, Zahedan, Iran
  6. 6. Chemical Engineering Department, King Saud University, Riyadh, Saudi Arabia

Source: Journal of Molecular Liquids Published:2016


Abstract

Novel γ-alumina nanoparticles and MWCNTs were synthesized for the rapid removal of the noxious nickel (II) from the solvent phase. Hence this study investigated the ability of nano-sized particle in Ni (II) adsorption. The influential parameters including contact time (min), adsorbent dosage (g/L), pH and the initial concentration of Ni (II) were investigated and optimized using the batch adsorption study. The adsorption equilibrium and kinetic data were well fitted and found to be in good agreement with Langmuir and pseudo-second order kinetic model respectively and the maximum Ni (II) percentage removal using MWCNTs and novel γ-alumina nanoparticle was 87.65% and 99.41%, respectively under optimum conditions. The maximum removal of Ni (II) was observed at pH = 10. Upon experimentation, it was observed on increasing the adsorbent dosage and initial concentration the amount of Ni (II) removal efficiency also increased. Finally, it can be concluded that the synthesized nanoparticles can be applied as the best adsorbent to remove the Ni (II) from aqueous solution. © 2016 Elsevier B.V.