Open AccessPure, simple and green synthesis of magnesium oxysulphate whiskers through hydrothermal reaction
Author(s) -
Ba Li,
Jiang Min,
Gao Shanjun,
Chen Ming,
Yang Shuyi
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.2018.5128
Subject(s) - whiskers , whisker , thermogravimetry , hydrothermal circulation , scanning electron microscope , molar ratio , magnesium , fourier transform infrared spectroscopy , materials science , aspect ratio (aeronautics) , hydrothermal synthesis , infrared spectroscopy , analytical chemistry (journal) , nuclear chemistry , infrared , mineralogy , chemical engineering , chemistry , inorganic chemistry , catalysis , metallurgy , composite material , organic chemistry , engineering , physics , optics
One‐dimensional magnesium oxysulphate MgSO 4 ·5Mg(OH) 2 ·2H 2 O (abbreviated as 152MOS) with a high aspect ratio was prepared through the hydrothermal reaction route without granular fragments observed in the final products. Those parameters such as molar ratio of MgSO 4 ·7H 2 O to NaOH solution, reaction temperature, reaction time, and dropping order between MgSO 4 ·7H 2 O and NaOH that can influence the morphology, purity, and structure of 152MOS whiskers were taken into consideration. The results indicated that the high purity 152MOS whisker with a length of 170–210 μm can be obtained at 200°C for 15 h in an oven when dropping NaOH into MgSO 4 with the molar ratio of 1:1.5. The product characteristics were investigated by X‐ray diffraction, Fourier transform‐infrared, thermogravimetry, and scanning electron microscopy.