May 15 – 20, 2022
Casino Conference Centre
Europe/Prague timezone

Polonium removal from waters by silver-coated Luffa Cylindrica biochar fibers

May 19, 2022, 5:36 PM


Poster Separation Methods, Speciation Separation & Speciation


Prof. Ioannis Pashalidis (Department of Chemistry, University of Cyprus)



The sorption of ultra-trace levels of polonium by Luffa Cylindrica biochar fibers has been investigated in de-ionized water and seawater samples prior and after surface modification (Ag-coating) of the adsorbent. The effect of pH on the sorption efficiency (Kd values) indicated that pH, which governs the solution chemistry of Po(IV), affects to a large degree the adsorption efficiency and that Ag-coating of the surface results in significantly higher Kd values. The modified adsorbent presents enhanced removal efficiency for Po-209 even from seawater samples indicating the usefulness of the modified biochar fibers for the treatment of polonium contaminated waters.

Polonium adsorption; Ag-coated fibers; water treatment; seawater; Kd values

Primary authors

Prof. Ioannis Pashalidis (Department of Chemistry, University of Cyprus) Mrs Maria Philippou (Department of Chemistry, University of Cyprus)

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