Open AccessUltrasound‐assisted synthesis of porous Mg(OH) 2 nanostructures using hypersaline brine
Author(s) -
Yousefi Sadegh,
Ghasemi Behrooz
Publication year - 2019
Publication title -
micro and nano letters
Language(s) - English
Resource type - Journals
SCImago Journal Rank - 0.25
H-Index - 31
ISSN - 1750-0443
DOI - 10.1049/mnl.2019.0047
Subject(s) - thermogravimetry , brine , materials science , scanning electron microscope , transmission electron microscopy , analytical chemistry (journal) , particle size , magnesium , nanostructure , differential thermal analysis , mineralogy , porosity , thermal analysis , chemical engineering , specific surface area , diffraction , chemistry , inorganic chemistry , nanotechnology , thermal , composite material , metallurgy , chromatography , catalysis , organic chemistry , optics , engineering , physics , meteorology
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.