Abstract
This research aims to construct hydrotalcite Mg-Al-CO3 by tuning the pH synthesis and molar ratio. The tuning was carried out by applying different synthesis pH. In addition, utilization of snail shell waste is expected to replace CO3 2- ion that needed for anion component in hydrotalcite production. For this study precipitation and hydrothermal methods were applied for synthesis. The precipitation had been carried out in three steps, namely isolation of ion CO3 2- from snail shell, preparation of Na2CO3 solution using snail shell powder as ion CO3 2- source and synthesizing hydrotalcite, where hydrothermal method was carried out at 150 °C. Confirmation of hydrotalcite obtained was done using SEM and FTIR.
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