Efficiency of KOH-activated carbon for removal of heavy metal pollution from water


  • Narandalai Byamba-Ochir Institute of Chemistry and Chemical Technology, Mongolian Academy of Sciences, Ulaanbaatar, 13330, Mongolia https://orcid.org/0000-0002-2775-8984
  • Nazgul Muratbyek Institute of Chemistry and Chemical Technology, Mongolian Academy of Sciences, Ulaanbaatar, 13330, Mongolia
  • Narangarav Tumen-Ulzii Institute of Chemistry and Chemical Technology, Mongolian Academy of Sciences, Ulaanbaatar, 13330, Mongolia
  • Ariunaa Alyeksandr Institute of Chemistry and Chemical Technology, Mongolian Academy of Sciences, Ulaanbaatar, 13330, Mongolia
  • Nasantogtokh Oyunchimeg Institute of Chemistry and Chemical Technology, Mongolian Academy of Sciences, Ulaanbaatar, 13330, Mongolia




KOH-activated carbon, heavy metals, surface characterization, adsorption isotherms


The study to reduce heavy metals pollution from water using the KOH-activated carbon was studied the factors affecting the adsorption capacities of Cu(II) and Pb(II), in particular, initial metals concentration, pH of the solution, and contact time in static conditions. Using X-ray photoelectron spectroscopy and FTIR analysis to determine the elemental composition and surface functional groups of the activated carbon surface, the presence of oxygen-related functional groups was observed. The maximum adsorption capacities were 135.8 mg g-1 and 31.0 mg g-1 for removal of lead and copper solutions with the initial concentration of 300 mg L-1 of metal at 318 K, respectively. The removal percentage was found to be higher for Pb (II) when compared with Cu (II).


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How to Cite

Byamba-Ochir, N., Muratbyek, N., Tumen-Ulzii, N., Alyeksandr, A., & Oyunchimeg, N. (2022). Efficiency of KOH-activated carbon for removal of heavy metal pollution from water. Mongolian Journal of Chemistry, 23(49). https://doi.org/10.5564/mjc.v23i49.1406