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Comparative Adsorption of Fuchsin Acid and Eosin Blue Using Zinc Oxide and Titanium Dioxide Modified Activated Carbon Derived from Plastic Waste |
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| รหัสดีโอไอ | |
| Creator | Dunya A. Al-Abbawy |
| Title | Comparative Adsorption of Fuchsin Acid and Eosin Blue Using Zinc Oxide and Titanium Dioxide Modified Activated Carbon Derived from Plastic Waste |
| Contributor | Ayat S. Al-Maliki, Zuhair A. Abdulnabi |
| Publisher | Thai Society of Higher Education Institutes on Environment |
| Publication Year | 2569 |
| Journal Title | EnvironmentAsia |
| Journal Vol. | 19 |
| Journal No. | 2 |
| Page no. | 16-33 |
| Keyword | Dyes, Nanoparticles, Removal efficiency, Titanium dioxide |
| URL Website | http://www.tshe.org/ea/index.html |
| Website title | EnvironmentAsia |
| ISSN | 1906-1714 |
| Abstract | Activated carbon was synthesized from plastic waste (polyethylene terephthalate) andoxidized to improve its surface properties. Zinc oxide (ZnO) nanoparticles were producedvia co-precipitation, and titanium oxide nanoparticles (TiO₂) were synthesized usingmechanical milling. The prepared materials were characterized using Fourier-transforminfrared (FTIR), X-ray diffraction (XRD), scanning electron microscopy (SEM), andEDX analyses. The nanostructured oxides were subsequently loaded onto the activatedcarbon surface, and the resulting composites were further analyzed using FTIR, XRD,SEM, EDX, BET surface area, and zeta potential measurements. The obtained adsorbentwas applied to remove two dyes (Eosin Blue and Fuchsin Acid) from an aqueous solutionunder varying conditions, including contact time, pH, temperature, and agitation speed.The removal efficiencies reached 72.49% for Eosin Blue and 89.05% for Fuchsin Acid.Adsorption isotherm studies indicated that the adsorption of Eosin Blue followed theLangmuir model with a maximum adsorption capacity of 164.64 mg/g, whereas FuchsinAcid was better described by the Freundlich model, with a higher capacity of 519.87mg/g. Furthermore, the thermodynamic parameters confirmed the feasibility, spontaneity,and mixed endothermic-exothermic behavior of the adsorption process. |
