| Abstract |
Coal fly ash is a byproduct from power plants and causes environmental problems. Zeolite A
was synthesized from coal fly ash by using the two-step method. The raw materials obtained
without and with acid wash treatment were studied to determine whether acid wash treatment
is an important pre-synthesis step to obtain complete zeolite A. The synthesized materials were
characterized in terms of crystalline pattern, surface area, chemical composition, chemical
functional groups, and cation exchange capacity through XRD, FESEM-FIB, EDX, XRF,
FTIR and the cobalt cation exchange process. The results confirmed the preparation of zeolite
A from the process with acid wash treatment and strongly indicated the quality of zeolite A with
a cation exchange capacity of 2.38 meq/g. In contrast, the material synthesized without wash
treatment corresponded to sodalite with a cation exchange capacity of 0.99 meq/g. Therefore,
acid wash treatment is an important step before zeolite A synthesis, and the synthesized
material has the potential to be utilized as a catalyst, adsorbent, and ion exchanger in the future. |
Publication
Journal Publication
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