Synthetic Hydrotalcite Prepared from Modified Combustion Method Using Glucose as Fuel

M.R. Othman; Che Martunus; W.J.N. Fernando

doi:10.4028/www.scientific.net/AMR.173.146

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Synthetic Hydrotalcite Prepared from Modified Combustion Method Using Glucose as Fuel

Abstract:

Hydrotalcite (HT) like compounds were successfully synthesized from combustion method using aluminum and magnesium nitrates, and potassium carbonate as solid precursors. Glucose was used as solid fuel to facilitate the reaction into mixed oxide and later HT structure at different combustion temperature. The combusted product initially formed disordered mixed oxides, but later returned to its original, more ordered HT state after being in contact with carbonate solution as analyzed from XRD. SEM analysis showed that the sample's microstructure was more orderly packed, less granular and more refined than its mixed oxide counterpart. The EDX analysis showed that the elemental potassium was the strongest energy binding in the hydrotalcite network followed by Al, Mg, O and C.