Synthesis of Mg/Al Hydrotalcite by Using Low Supersaturated Precipitation Method with Variation of Mole Ratio

Christanty Wahyu Septyaningrum(1), Sri Handayani(2), Cahyorini Kusumawardani(3), Kun Sri Budiasih(4),
(1) 
(2) 
(3) 
(4) 

Abstract


This research aims to synthesize Mg/Al hydrotalcite with mole ratio variations of Mg/Al precursor through low supersaturated precipitation method. Mg/Al hydrotalcite was synthesized with Mg/Al mole ratio variation of 1:1, 2:1, 3:1, and 4:1. Mg/Al hydrotalcite was synthesized using NaOH and Na2CO3 base solutions. The mixture of precursor was stirred for 2 hours then treated by hydrothermal at 100 °C for 4 hours. Results of the synthesis Mg/Al hydrotalcite with mole ratio variations is a white powder. The formation of the structure of Mg/Al hydrotalcite showed by certain peaks in the FTIR spectra and XRD diffractogram.
The results of data analysisshowed that variation of mole ratio Mg/Alcauses a shift of peak in the XRD diffractogram shifted towards the left along with a comparative increase in mole ratio Mg/Al, but the main functional groups on the compound Mg/Al hydrotalcite increasingly formed with better.

Keywords


Mg/Al hydrotalcite, low supersaturated precipitation method, hydrothermal.

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: https://doi.org/10.20885/eksakta.vol14.iss2.art1

Jurnal Eksakta
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 Faculty of Mathematics and Natural Science
Universitas Islam Indonesia, Yogyakarta

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