Preparation of meixnerite (Mg–Al–OH) type layered double hydroxide by a mechanochemical route |
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Authors: | William Tongamp Qiwu Zhang Fumio Saito |
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Affiliation: | (1) Institute of Multidisciplinary Research for Advanced Materials, Tohoku University, 2-1-1, Katahira, Aoba-Ku, Sendai 980-8577, Japan |
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Abstract: | We have attempted to synthesize the meixnerite (Mg–Al–OH) type layered double hydroxide (LDH) by a two step milling operation
of a mixture of Mg(OH)2 and Al(OH)3 with water. In the first-step, a mixture of the starting materials was milled for 1 h without water, and the product prepared
in the first-step was milled for 2 h with water in the second-step milling operation. The milled products were characterized
by X-ray diffraction (XRD), Fourier transform infrared (FTIR), and thermo gravimetric-differential thermal analyses with mass
spectroscopy (TG-DTA/MS). The surface morphology was characterized by scanning electron microscopy (SEM). Meixnerite with
a small amount of carbonate was successfully synthesized mechanochemically at ambient conditions by milling for only 3 h in
a planetary ball mill. |
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Keywords: | |
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