Imam Mohammad Ibn Saud Islamic University

Abdulrahman Ghonaim Awad Alhamzani

Mortaga Mohamed Mostafa Abou-Krisha

A particulate CaPbO/PbO/CoO/C nanocomposite material comprising, as determined by X-ray diffraction (XRD): elemental carbon (C); an orthorhombic lead oxide (PbO) crystalline phase; an orthorhombic calcium lead oxide (CaPbO) crystalline phase; and, a cubic cobalt oxide (CoO) crystalline phase. The particulate nanocomposite material is characterized by having, based on the total number of atoms in the nanocomposite material: an atomic concentration of carbon of from about 1 atomic percent (at. %) to about 10 at. %; an atomic concentration of lead (Pb) of from about 5 at. % to about 15 at. %; an atomic concentration of calcium (Ca) of from about 10 at. % to about 25 at. %; and, an atomic concentration of cobalt (Co) of from about 10 at. % to about 20 at. %.

Multicomponent nanocomposite material

A particulate nanocomposite material comprising, as determined by X-ray diffraction (XRD): an orthorhombic CaBOcrystalline phase; a triclinic MnMgBOcrystalline phase; and, a CaBOcrystalline phase. The particulate nanocomposite material has, based on the total number of atoms in the nanocomposite material: an atomic concentration of carbon (C) of from about 0.1 to about 5 atom %; an atomic concentration of calcium (Ca) of from about 5 to about 15 atom %; an atomic concentration of boron (B) of from about 1 to about 10 atom %; an atomic concentration of manganese (Mn) of from about 5 to about 15 atom %; and, an atomic concentration of magnesium (Mg) of from about 5 to about 15 atom %. The particulate nanocomposite material has utility in immobilizing inorganic contaminants disposed in an aqueous medium and in degrading organic pollutants disposed in an aqueous medium.

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Riyadh, Saudi Arabia

Abdulrahman Ghonaim Awad Alhamzani