Elucidating the Effects of Reaction Time on the Physicochemical Characterization of Valorized Synthesized Alumina

Aiman A Bin Mokaizh, Jun Haslinda Shariffuddin, Abdullah O Baarimah, Amin Al-Fakih, Abdullah Mohamed, Salem O Baarimah, Al-Baraa Abdulrahman Al-Mekhlafi, Hamoud Alenezi, Olusegun Abayomi Olalere, Anwar Ameen Hezam Saeed

Research output: Contribution to journalArticlepeer-review

4 Citations (SciVal)

Abstract

Aluminum waste-can management in Malaysia has recently become a serious environmental and public health issue, particularly in metropolitan areas. This has prompted the need to valorize these waste-cans into value-added products using the most economical and environmentally friendly techniques. In this study, the sol-gel technique was used to synthesize high-quality alumina from the aluminum waste-cans collected. From this method, the observed peaks of the synthesized alumina were identified as diaspore (α-AlO(OH)), boehmite (γ-AlO(OH)), aluminum oxide, or gamma-alumina (γ-Al 2O 3) crystalline structure and corundum. The morphological configuration, microstructure, and functional group properties of the synthesized alumina were evaluated. All the synthesized alumina exhibited a non-spherical shape and appeared to have hexagonal-like shape particles. Moreover, the XRD patterns of the synthesized alumina AL-6-30 and AL-12-30 exhibited a small angle (1-10°) with no XRD peak, which indicated a mesoporous pore structure with no long-range order. The overall results of γ-alumina synthesized from the aluminum waste-cans showed an optimal condition in producing a highly structured γ-alumina with excellent surface-area characteristics. The synthesized alumina exhibited stronger and highly crystalline functional characteristics almost comparable with the commercially available brands on the market.

Original languageEnglish
JournalMaterials
Volume15
Issue number9
DOIs
Publication statusPublished - 22 Apr 2022

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