Two teaching staff, Prof. Dr. Aala Aladdin Abdel Hamid and Prof. Dr. Farhad Muhammad Othman in the Department of Materials Engineering obtained patent titled
"Using Plant Residues to Prepare Nano-Powdered Aluminum Oxide in a Green Method and Study its Structural Properties"
In this patent, nano aluminum oxide was prepared by the green synthesis method from Mentha, Buckthorn, Damask Rose, Myrtus communis leaves, and mixture of these leaves, using aluminum nitrate as a precursor. A high-purity aluminum oxide powder was obtained with the least used materials and in an economical way.
The results showed that the powders prepared from leaves of Menthe, Buckthorn, Damask Rose, Myrtus communis leaves, and mixture of these leaves had an average particle size in nano range. Without lumps and in different morphology, also, the powder extracted from Myrtus communis leaves was in the form of pressed granules. As for the powder extracted from the mixture of leaves, it contained more than one granular shape. All the produced powders were aluminum oxide with alpha phase.