In this study, Na-A type zeolite with high crystallinity was synthesized hydrothermally from NaAlO₂ and Na₂SiO₃ precursors. The obtained Na-A zeolite was converted into Li-A zeolite through stepwise ion exchange using LiCl solution. During the three-stage exchange process, Na⁺ ions were effectively replaced by Li⁺ ions while maintaining the structural stability of the zeolite framework. The resulting products were thoroughly characterized by X-ray diffraction (XRD) and infrared (IR) spectroscopy. XRD results confirmed that Li-A zeolite retained high crystallinity and predominantly formed lithium aluminosilicate phase. IR spectroscopy revealed shifts in Si–O–Al and Si–O–Si vibrations, indicating the incorporation of Li⁺ ions into the framework cavities. The final Li-A zeolite exhibited high ion-exchange capacity, stable morphology, and selective adsorption properties, making it a promising material for gas separation, catalysis, and electrochemical applications.
| Mualliflar | Abdulxayev, Tolibjon, Oydinov, Mukhlis, Khamidov, Rakhmatullo |
|---|---|
| Jurnal | Наманган муҳандисликтехнология институти илмийтехника журнали |
| Nashr sanasi | 2026-03-30 |
| Jild | 11 |
| Son | 1 |
| Betlar | 216-223 |
| Til | Ingliz |
| DOI | 10.61151/stjniet.v11i1.1002 |
DOI: 10.61151/stjniet.v11i1.1002 · Maqolaning asl sahifasi
Na-A zeolite, Li-A zeolite, ion exchange, XRD analysis, IR spectroscopy, crystal structure, selective adsorption, catalysis
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