Alumina nanoparticles immobilization onto the NaX zeolite and the removal of Cr (III) and Co (II) ions from aqueous solutions

作者：Deravanesiyan Meghedi; Beheshti Masoud^*; Malekpour Akbar

来源：Journal of Industrial and Engineering Chemistry, 2015, 21: 580-586.

DOI：10.1016/j.jiec.2014.03.023

• Immobilization
• Alumina nanoparticles
• NaX zeolite
• Removal
• Chromium (III)
• Cobalt (II)

The immobilization of alumina nanoparticles onto the NaX zeolite granules, using the sol-gel and a physical method, for the removal of Cr (III) and Co (II) was investigated. Alumina nanoparticles immobilized zeolite (ANIZ) was characterized by SEM/EDX, XRD and AAS. The results suggested the formation of nanoscale alumina (similar to 30-50 nm) on the zeolite (loading similar to 8-10 wt%) and the stability of the zeolite structure after the immobilization of alumina nanoparticles. ANIZ showed a good capacity for the removal of metal ions. Kinetic and equilibrium data were best fitted with the pseudo second order model and the Langmuir model respectively.

• 出版日期2015-1-25