Method of forming metal oxide nanostructures on a TiO2-ZnO-buffered substrate
AssigneeKing Faisal University
InventorsMohamed Shaker Sayed Adam, Amel Musa Taha, Mohamed M. Makhlouf
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Abstract
A method of forming TiO2—ZnO nanoparticles coated by a copper (II) complex includes forming a mononuclear copper complex by treating a ligand with Cu2+ ions; and immobilizing the mononuclear copper complex on TiO2—ZnO nanoparticles to obtain the TiO2—ZnO nanoparticle coated by the copper (II) complex. The TiO2—ZnO nanoparticles coated by a copper (II) complex thus produced have improved catalytic effectiveness and increased efficiency by reducing catalytic reaction time and temperature, particularly in methods of catalyzing oxidation of an alcohol or of catalyzing decarboxylative bromination of an acid.
Claims18
A method of catalyzing oxidation of an alcohol, the method comprising:
- contacting a TiO2—ZnO nanoparticle coated with a copper (II) complex with the alcohol in the presence of aqueous H2O2 or tBuOOH;
- and
- obtaining a corresponding aldehyde and acid;
- wherein the TiO2—ZnO nanoparticle coated with a copper (II) complex is prepared by a method comprising:
- forming a mononuclear copper complex by treating a ligand with Cu2+ ions;
- and
- immobilizing the mononuclear copper complex on TiO2—ZnO nanoparticles to obtain the TiO2—ZnO nanoparticle coated with the copper (II) complex;
- wherein the ligand is 2-((4-hydroxybenzylidene)amino)phenol.
A method of catalyzing decarboxylative bromination of an acid, the method comprising:
- contacting a TiO2—ZnO nanoparticle coated with a copper (II) complex with the acid and a bromide in the presence of aqueous H2O2 or tBuOOH;
- and
- obtaining a corresponding decarboxylated acid;
- wherein the TiO2—ZnO nanoparticle coated with a copper (H) complex is prepared by a method comprising:
- forming a mononuclear copper complex by treating a ligand with Cu2+ ions;
- and
- immobilizing the mononuclear copper complex on TiO2—ZnO nanoparticles to obtain the TiO2—ZnO nanoparticle coated with the copper (II) complex;
- wherein the ligand is 2-((4-hydroxybenzylidene)amino)phenol.
Dependencies are inferred from the claim text.