Počet záznamů: 1
Waste brick dust as potential sorbent of lead and cesium from contaminated water
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SYSNO ASEP 0504880 Druh ASEP J - Článek v odborném periodiku Zařazení RIV J - Článek v odborném periodiku Poddruh J Článek ve WOS Název Waste brick dust as potential sorbent of lead and cesium from contaminated water Tvůrce(i) Doušová, B. (CZ)
Koloušek, D. (CZ)
Lhotka, M. (CZ)
Keppert, M. (CZ)
Urbanová, Martina (UMCH-V) RID, ORCID
Kobera, Libor (UMCH-V) RID, ORCID
Brus, Jiří (UMCH-V) RID, ORCIDČíslo článku 1647 Zdroj.dok. Materials. - : MDPI
Roč. 12, č. 10 (2019), s. 1-12Poč.str. 12 s. Jazyk dok. eng - angličtina Země vyd. CH - Švýcarsko Klíč. slova waste brick dust ; adsorption ; lead Vědní obor RIV CD - Makromolekulární chemie Obor OECD Polymer science Způsob publikování Open access Institucionální podpora UMCH-V - RVO:61389013 UT WOS 000471012500076 EID SCOPUS 85066844082 DOI 10.3390/ma12101647 Anotace Adsorption properties of waste brick dust (WBD) were studied by the removing of PbII and CsI from an aqueous system. For adsorption experiments, 0.1 M and 0.5 M aqueous solutions of Cs+ and Pb2+ and two WBD (Libochovice-LB, and Tyn nad Vltavou-TN) in the fraction below 125 µm were used. The structural and surface properties of WBD were characterized by X-ray diffraction (XRD) in combination with solid-state nuclear magnetic resonance (NMR), supplemented by scanning electron microscopy (SEM), specific surface area (SBET), total pore volume and zero point of charge (pHZPC). LB was a more amorphous material showing a better adsorption condition than that of TN. The adsorption process indicated better results for Pb2+, due to the inner-sphere surface complexation in all Pb2+ systems, supported by the formation of insoluble Pb(OH)2 precipitation on the sorbent surface. A weak adsorption of Cs+ on WBD corresponded to the non-Langmuir adsorption run followed by the outer-sphere surface complexation. The leachability of Pb2+ from saturated WBDs varied from 0.001% to 0.3%, while in the case of Cs+, 4% to 12% of the initial amount was leached. Both LB and TN met the standards for PbII adsorption, yet completely failed for any CsI removal from water systems. Pracoviště Ústav makromolekulární chemie Kontakt Eva Čechová, cechova@imc.cas.cz ; Tel.: 296 809 358 Rok sběru 2020 Elektronická adresa https://www.mdpi.com/1996-1944/12/10/1647/pdf
Počet záznamů: 1