Preparation and characterization of Linde-type A zeolite (LTA) from coal fly ash by microwave-assisted synthesis method: its application as adsorbent for removal of anionic dyes
- 3 July 2022
- journal article
- research article
- Published by Informa UK Limited in International Journal of Coal Preparation and Utilization
- Vol. 42 (7), 2064-2077
- https://doi.org/10.1080/19392699.2020.1792456
Abstract
Linde-type A zeolite (LTA) was prepared from coal fly ash (CFA) and used as an adsorbent to remove acidic dye (Acid red 66, AR66) from its aqueous solution. The effectiveness of synthesized (LTA) in adsorbing (AR66) from an aqueous solution was studied using batch experiments. The equilibrium data were studied using the Langmuir and Freundlich models and it was found that the data fit better to Freundlich model. Kinetic adsorption studies were done in terms of intra-particle diffusion model, pseudo-first-order and pseudo-second-order models. The results showed that the data followed a pseudo-second-order model.Keywords
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