| Title | Progress in the Utilization of Coal Fly Ash by Conversion to Zeolites with Green Energy Applications |
|---|---|
| ID_Doc | 29793 |
| Authors | Boycheva, S; Zgureva, D; Lazarova, K; Babeva, T; Popov, C; Lazarova, H; Popova, M |
| Title | Progress in the Utilization of Coal Fly Ash by Conversion to Zeolites with Green Energy Applications |
| Year | 2020 |
| Published | Materials, 13.0, 9 |
| Abstract | Fly ash (FA) from lignite coal combusted in different Thermal Power Plants (TPPs) was used for the synthesis of zeolites (FAZs) of the Na-X type by alkaline activation via three laboratory procedures. FAZs were characterized with respect to their morphology, phase composition and surface properties, which predetermine their suitability for applications as catalysts and adsorbents. FAZs were subsequently modified with metal oxides (CuO) to improve their catalytic properties. The catalytic activity of non-modified and CuO-modified FAZs in the total oxidation of volatile organic compounds was investigated. FAZs were studied for their potential to retain CO2, as their favorable surface characteristics and the presence of iron oxides make them suitable for carbon capture technologies. Thin films of FAZs were deposited by in situ crystallization, and investigated for their morphology and optical sensitivity when exposed to pollutants in the gas phase, e.g., acetone. This study contributes to the development of novel technological solutions for the smart and valuable utilization of FA in the context of the circular economy and green energy production. |
| https://www.mdpi.com/1996-1944/13/9/2014/pdf?version=1587817593 |
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