Geopolymer Building Materials Based on Fly Ash in Terms of Removing SO 2, CO 2, and Water Vapor

Katarzyna Zarębska, Jakub Szczurowski (), Magdalena Gazda-Grzywacz, Wojciech Wróbel, Jakub Bator and Paweł Baran
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Katarzyna Zarębska: Faculty of Energy and Fuels, AGH University of Krakow, al. Mickiewicza 30, 30-059 Krakow, Poland
Jakub Szczurowski: Faculty of Energy and Fuels, AGH University of Krakow, al. Mickiewicza 30, 30-059 Krakow, Poland
Magdalena Gazda-Grzywacz: Faculty of Energy and Fuels, AGH University of Krakow, al. Mickiewicza 30, 30-059 Krakow, Poland
Wojciech Wróbel: Faculty of Energy and Fuels, AGH University of Krakow, al. Mickiewicza 30, 30-059 Krakow, Poland
Jakub Bator: Faculty of Energy and Fuels, AGH University of Krakow, al. Mickiewicza 30, 30-059 Krakow, Poland
Paweł Baran: Faculty of Energy and Fuels, AGH University of Krakow, al. Mickiewicza 30, 30-059 Krakow, Poland

Energies, 2023, vol. 16, issue 13, 1-18

Abstract: This paper presents the results of sorption tests against selected gaseous pollutants SO 2 , CO 2 and H 2 O on geopolymer materials obtained from high-calcium fly ash from lignite power generation. In the synthesis process, activation of geopolymer materials was carried out using KOH and NaOH. It was found that the activating agent significantly affects the porous structure of the samples. The sorption experiments conducted for the KOH-activated sample showed high SO 2 adsorption efficiency, almost ten times higher than against CO 2 . The results demonstrate the possibility of utilizing fly ash obtained from the lignite energy processing sector for the synthesis of geopolymers with potential application of the materials as functional plastering compounds.

Keywords: geopolymers; sorption; vapor removal; fly ash; air pollution (search for similar items in EconPapers)
JEL-codes: Q Q0 Q4 Q40 Q41 Q42 Q43 Q47 Q48 Q49 (search for similar items in EconPapers)
Date: 2023
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Persistent link: https://EconPapers.repec.org/RePEc:gam:jeners:v:16:y:2023:i:13:p:5188-:d:1187674

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