Synthesis of a hydrotalcite-like compound from oil shale ash and its application in uranium removal

- Waste product of oil shale industry was utilized as sorbent for uranium.
- Hydrotalcite-like compound was synthesized using oil shale ash.
- Composition, microstructure and absorptive property were investigated.
- It was an Mg-Al-based hydrotalcite compound with a lamellar morphology.
- The maximum adsorption capacity toward uranium is 156 mg/g at 298 K.