Adsorption isotherms and kinetics for Pb(ii) ion removal from aqueous solutions with biogenic metal oxide nanoparticles
Mashentseva A.A. Seitzhapar N. Barsbay M. Aimanova N.A. Alimkhanova A.N. Zheltov D.A. Zhumabayev A.M. Temirgaziev B.S. Almanov A.A. Sadyrbekov D.T.
7 September 2023Royal Society of Chemistry
RSC Advances
2023#13Issue 3826839 - 26850 pp.
This study investigates the sorption removal of lead(ii) ions using zinc oxide (ZnO) and copper(ii) oxide (CuO) nanoparticles synthesized through a wet burning method with the aid of plant extract from Serratula coronata L. The effect of plant collection time on polyphenol content was investigated and optimal conditions were determined. The structural and chemical properties of the nanoparticles were studied by scanning electron microscopy, energy dispersive analysis, X-ray phase analysis, and X-ray photoelectron spectroscopy. A comparative analysis of lead ion sorption on the surface of synthesized nanoparticles was conducted. The kinetic study revealed that the sorption process follows a pseudo-second-order mechanism, and the Freundlich sorption model provides a better fit for the experimental data. ZnO and CuO nanoparticles exhibited significant sorption capacities, with values of 163.6 and 153.8 mg g−1, respectively.
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The Institute of Nuclear Physics of the Republic of Kazakhstan, Almaty, 050032, Kazakhstan
Department of Nuclear Physics, New Materials and Technologies, L.N. Gumilyov Eurasian National University, Astana, 010008, Kazakhstan
Department of Chemistry, Hacettepe University, Ankara, 06800, Turkey
NPJSC E.A. Buketov Karaganda University, Karaganda, 100024, Kazakhstan
The Institute of Nuclear Physics of the Republic of Kazakhstan
Department of Nuclear Physics
Department of Chemistry
NPJSC E.A. Buketov Karaganda University
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