Preparation and characterization of a novel diatomite-based composite and investigation of its adsorption properties for uranyl ions
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In this research, Polyacrylamide-diatomite (PAA-D) composite was used as adsorbent for the efficient removal of uranyl ions from aqueous solution. The chemical and morphological properties of PAA-D composite were confirmed by several analysis. Batch experiments were performed as a function of solution pH, initial concentration, kinetic, thermodynamic and recovery. The maximum metal uptake capacity was found as 0.085 mol kg−1. Kinetic data were best interpreted by a pseudo second order model. Thermodynamic findings showed that the adsorption process was exothermic, spontaneous and process with increased disorderliness at solid/solution interface. The recovery studies showed that PAA-D composite had good adsorption/desorption performance.
KeywordsDiatomite Uranyl Composite Polyacrylamide Adsorption
The present study (Project No: ZARA002) was partly supported by Cumhuriyet University Scientific Research Projects Commission (CUBAP), Sivas in Turkey.
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Conflict of interest
The authors have declared no conflict of interest.
- 1.Keith LS, Faroon OM, Fowler BA (2007) Uranium. In: Berlin M, Zalups RK, Fowler BA (eds) Handbook on the toxicology of metals. Academic Press, Burlington, pp 880–903Google Scholar
- 31.Freundlich HMF (1906) Over the adsorption in solution. J Phys Chem 57:385–471Google Scholar
- 32.Helfferich F (1962) Ion exchange. McGraw-Hill, New YorkGoogle Scholar