以MgO、Al(OH)3为镁源和铝源,采用一步水热法合成了镁铝水滑石(Mg-Al LDHs),考察了水热时间及水热温度对水滑石晶粒度和晶面选择性生长的影响规律.用XRD、SEM等对合成产物进行了表征.结果发现水热时间不变,升高水热温度,或水热温度不变,延长水热时间,LDHs的晶体结构均趋于完整,径厚比呈增大趋势;并且晶体沿a轴方向的生长速率比沿c轴方向的生长速率大,即[110]晶面的生长速率比[003]晶面的生长速率快.
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