Jump to main content
Jump to site search

Fe2O3/Al2O3 microboxes for efficient removal of heavy metal ions


Iron oxide/aluminum oxide microboxes (Fe2O3/Al2O3 MBs) with cubic structures (1 ± 0.09 µm) possessing large specific surface area (208.3 m2 g-1) and high adsorption capacity (216 mg g-1) were prepared and utilized for the removal of mercury (Hg2+) (100 ppm) from various samples, including tap water, lake water and tomato juice, with efficiencies of 98.2 ± 0.4, 98.5 ± 0.3 and 97.1 ± 0.5%, respectively. The Fe2O3/Al2O3 MBs are stable, allowing the adsorbed metal species to be removed from their surfaces with 2M HCl. The Fe2O3/Al2O3 MBs can be reused up to five times after being treated with 2 M HCl. Furthermore, the Fe2O3/Al2O3 MBs are efficent adsorbents for removal of four metal ions such as Hg2+, cadmium (Cd2+), copper (Cu2+), and lead (Pb2+) ions from soil samples, mainly because of a synergetic effect provided by the two metal oxides and high surface area. This low-cost, effective, and stable Fe2O3/Al2O3 adsorbent holds great potential for the removal of Hg2+ and other heavy metal ions from contaminated sources such as water and soil.

Back to tab navigation

Supplementary files

Publication details

The article was received on 06 Feb 2017, accepted on 08 Jun 2017 and first published on 08 Jun 2017

Article type: Paper
DOI: 10.1039/C7NJ00431A
Citation: New J. Chem., 2017, Accepted Manuscript
  •   Request permissions

    Fe2O3/Al2O3 microboxes for efficient removal of heavy metal ions

    R. Ravindranath, P. Roy, A. P. Periasamy, Y. Chen, C. Liang and H. Chang, New J. Chem., 2017, Accepted Manuscript , DOI: 10.1039/C7NJ00431A

Search articles by author