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MgSO4·5Mg(OH)2·3H2O的水热合成及反应时间对其形貌的影响
引用本文:朱黎霞,岳涛,高世扬,夏树屏. MgSO4·5Mg(OH)2·3H2O的水热合成及反应时间对其形貌的影响[J]. 无机化学学报, 2003, 19(1): 99-102
作者姓名:朱黎霞  岳涛  高世扬  夏树屏
作者单位:中国科学院青海盐湖研究所西安二部,西安 710043,兰州大学化学系,兰州 730000,中国科学院青海盐湖研究所西安二部,西安 710043;陕西师范大学应用化学研究所,西安 710069,中国科学院青海盐湖研究所西安二部,西安 710043
摘    要:Both whisker and nanometer MgSO4·5Mg(OH)2·3H2O(MOS) were prepared by hydrothermal method at 140℃ for different times, using NaOH and MgSO4·7H2O as raw materials. The MgSO4·5Mg(OH)2·3H2O part- icles were characterized by powder X-ray diffraction(XRD),thermal analysis(TGA-DSC), infrared spectroscopy(FT-IR),transmission electron microscopy(SEM) and scanning electron microscopy(TEM). The size distribution in whisker-like and nanocrystalline materials are in the range of 10~50μm and 10~20nm respectively. The whisker MOS is metastable phase in MgSO4-NaOH-H2O system at 140℃,whereas nanometer MOS is stable phase.

关 键 词:水热合成 硫氧镁 形貌

Hydrothermal Synthesis and the Effect of Reaction Time on Morphology of MgSO4 · 5Mg(OH)2 · 3H2O
ZHU Li-Xi,YUE Tao,GAO Shi-Yang and XIA Shu-Ping. Hydrothermal Synthesis and the Effect of Reaction Time on Morphology of MgSO4 · 5Mg(OH)2 · 3H2O[J]. Chinese Journal of Inorganic Chemistry, 2003, 19(1): 99-102
Authors:ZHU Li-Xi  YUE Tao  GAO Shi-Yang  XIA Shu-Ping
Abstract:Both whisker and nanometer MgSO4 @ 5Mg(OH)2 @ 3H2O(MOS) were prepared by hydrothermal method at140℃ for different times, using NaOH and MgSO4 @ 7H2O as raw materials. The MgSO4 @ 5Mg(OH)2 @ 3H2O part-icles were characterized by powder X-ray diffraction(XRD), thermal analysis(TGA-DSC), infrared spectroscopy(FT-IR), transmission electron microscopy (SEM) and scanning electron microscopy (TEM). The size distribution inwhisker-like and nanocrystalline materials are in the range of 10~50μm and 10~20nm respectively. The whiskerMOS is metastable phase in MgSO4-NaOH-H2O system at 140℃, whereas nanometer MOS is stable phase.
Keywords:hydrothermal synthesis magnesium oxysulfate morphology
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