This paper describes how iron ore tailings-a mineral waste is converted into nanomaterials and also opens up the technological importance. Propeller-like nano-akaganeite (beta-FeOOH) and hematite (Fe(2)O(3)) powder were synthesized from mineral waste. Annealing of as-prepared akaganeite (beta-FeOOH) sample leads to the development of pores in its nanostructures which was confirmed by transmission electron microscopy (TEM). A phase change from beta-FeOOH to Fe(2)O(3) was observed at 600 degrees C. The Pb(II) adsorption studies carried out on selected sample revealed that the sample annealed at 350 degrees C adsorbs more amount of Pb(II) compared to as-prepared sample indicating for its high surface area and pores in its structure.
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