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International Journal of Nanomaterials and Chemistry
An International Journal


Volumes > Volume 2 > No. 1


Removal of Cd+2 and Pb+2 Ions from Aqueous Solutions Using Bentonite-Modified Magnetic Nanoparticles

PP: 27-31
Badriah Saad Al-Farhan,
The paper presents results of studies on the possibility of using bentonite modified by magnetic hematite nanoparticles to clean post-production water contaminated by Cd2+ and Pb2+ ions. The colloidal solutions of iron (III) hydroxide and iron (II) oxide were used to cover the surface of bentonite clay. The obtained products have tested for X-ray analysis which shows hematite nanoparticles of size 22.76 nm were covered the clay surface. The clay loaded with nanoparticles was used as active agent in the removal of Cd2+ and Pb2+ ions in their aqueous solutions. The efficiency of the removal process was studied using flame atomic absorption techniques. However, the removal efficiency towards Pb2+ ions was relatively higher than Cd2+ ions. This was related to the mode of interaction between the removed ions and surface of the prepared nanoparticles.

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