Monday, 10 April 2017 17:15

Ferrite-based Materials for Removal Heavy Metals

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Ferrite-based Materials for Removal Heavy Metals
Ahmad Anwar Hassan1, Samir. A. Abdel-Latif2, Mohammed Eid M. Ali3*
1Central Laboratories of the Egyptian Mineral Resources Authority, Dokki, Cairo, Egypt
2Chemistry Department, Faculty of Science, Helwan University, Cairo, Egypt
3Water Pollution Research Department, National Research Center, El-Bouthous, Dokki, Cairo, Egypt, P.O. 12622
*Corresponding author: Mohammed Eid M. Ali, e-mail: This email address is being protected from spambots. You need JavaScript enabled to view it., mailing address: 3Water Pollution Research Department, National Research Center, El-Bouthous, Dokki, Cairo, Egypt, P.O. 12622/ Tel: 00201008457583
Abstract
Spinel nickel ferrite was synthesized by low temperature regime in which no calcination temperature is induced. The as-prepared nickel ferrite is used for treatment hexavalent chromium Cr (VI) and pentavalent arsenic As (V) ions from wastewater by adsorption technique. Cr (VI) ions were removed by maximum efficiency reached to 60% after 90 minutes at pH 5, 2 g/L of ferrite dose and concentration of Cr (VI) ions is 25 mg/L. As (V) ions were treated by maximum efficiency reached to 75% after 90 minutes at pH 5, dose of ferrite of 1 g/L and concentration of As (V) ions is 25 mg/L. kinetic and isothermal study of adsorption of Cr (VI) and As (V) ions onto nickel ferrite surface indicates that sorption is favorable, spontaneous and chemical process. Cr (VI) ions adsorption follows Pseudo first order kinetics reaction while As (V) ions adsorption follows Pseudo second order kinetics reaction. Conclusively, nickel ferrite has more uptakes for As (V) rather than Cr (VI).

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