Experimental study demonstrates ultrasound-driven refinement of magnesium hydroxide nanostructures from hypersaline brine, indicating enhanced recovery of functional nanomaterials.
In this work, synthesis and formation of porous magnesium hydroxide (MH) nanostructures were investigated by chemical precipitation and sonochemical method using hypersaline brine containing large amounts of CaCl 2 , MgCl 2 , NaCl and KCl. The effect of ultrasound waves was investigated on the morpho‐structural, surface and thermal properties were investigated by means of X‐ray diffraction, field emission scanning electron microscopy, transmission electron microscopy, energy dispersive X‐ray spectrometer, Brunauer–Emmett–Teller and thermogravimetry‐differential thermal analysis techniques. It was indicated that ultrasound waves decreased grain and particle sizes of the sample which synthesised by sonochemical route (MH‐U). The MH‐U sample had a higher surface area, lower particle size, better particle distribution and lower transition temperature of MH to MgO.
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Yousefi et al. (2019) studied this question.
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