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Influence of solvents on the hydrothermal formation of one-dimensional magnesium hydroxide

✍ Scribed by X. T. Sun; L. Xiang; W. C. Zhu; Q. Liu

Publisher
John Wiley and Sons
Year
2008
Tongue
English
Weight
209 KB
Volume
43
Category
Article
ISSN
0232-1300

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✦ Synopsis

The influence of solvents on the hydrothermal formation of one-dimensional (1D) magnesium hydroxide (Mg(OH) 2 ) was investigated in this paper. Uniform 1D Mg(OH) 2 with a length of 10-20 Β΅m, a width of 100-200 nm and a preferential growth along [110] direction have been synthesized by treating magnesium oxysulfate (5Mg(OH) 2 β€’MgSO 4 β€’3H 2 O, abbreviated as 513MOS) nanowires in NaOH ethanol solution at 180Β°C for 2.0 h. The experimental results indicated that the solvent of ethanol and NaOH concentration were essential for the conversion of 513MOS nanowires to 1D Mg(OH) 2 . The slow release of MgSO 4 from 513MOS and the heterogenous precipitation of Mg(OH) 2 at the defects left by MgSO 4 dissolution promoted the formation of 1D Mg(OH) 2 .

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