| Autor: |
Bin Mokaizh AA; Faculty of Chemical and Process Engineering Technology, Universiti Malaysia Pahang, Gambang 26300, Pahang, Malaysia., Shariffuddin JH; Faculty of Chemical and Process Engineering Technology, Universiti Malaysia Pahang, Gambang 26300, Pahang, Malaysia., Baarimah AO; Department of Civil and Environmental Engineering, Universiti Teknologi PETRONAS, Seri Iskandar 32610, Perak, Malaysia., Al-Fakih A; Interdisciplinary Research Center for Construction and Building Materials, King Fahd University of Petroleum and Minerals, Dhahran 31261, Saudi Arabia., Mohamed A; Research Centre, Future University in Egypt, New Cairo 11835, Egypt., Baarimah SO; Department of Petroleum Engineering, College of Engineering and Petroleum, Hadhramout University, Al Mukalla 50512, Hadhramout, Yemen., Al-Mekhlafi AA; Department of Management & Humanities, Universiti Teknologi PETRONAS, Seri Iskandar 32610, Perak, Malaysia., Alenezi H; Research Institute for Sustainable Environment, School of Chemical and Energy Engineering, Universiti Teknologi Malaysia, Skudai 81310, Johor, Malaysia., Olalere OA; ABrC-Inkubator Inovasi Universiti (I2U), sains@usm, Universiti Sains Malaysia, Bayan Lepas 11900, Penang, Malaysia., Saeed AAH; Department of Chemical Engineering, Universiti Teknologi PETRONAS, Seri Iskandar 32610, Perak, Malaysia. |
| Abstrakt: |
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 2 O 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. |
