期刊论文

Zhang, Lin(552410089@qq.com)

中文

精细化工

1003-5214

2017

34

10

1107-1113

10.13550/j.jxhg.2017.10.005

国家自然科学基金项目（51378247）； 南华大学研究生创新课题（2017XCX13）~~；

本校为第一机构

以硝酸镁、硝酸铝为原料,尿素为沉淀剂,采用水热法在不同条件下合成了不同形貌的镁铝水滑石LDH-1、 LDH-2、LDH-3。通过SEM、XRD、BET和EDS对合成的样品进行了表征;考察了不同形貌水滑石及其焙烧产物(LDO-1、LDO-2、LDO-3)对溶液中氯离子的吸附性能。结果表明:采用水热法添加乙二醇可合成棒状镁铝水滑石(LDH-1),添加乙醇可合成片状六边形镁铝水滑石(LDH-2),添加四丙基氢氧化铵可合成立方体镁铝水滑石(LDH-3)。其中,LDH-2形貌规整均一,片间形成交叉支撑结构,比表面积为115.311 m~2/g,在室温条件下,其对氯离子的最大吸附量为24.72 mg/g。LDO-2吸附氯离子的最优操作条件:温度为35 ℃,pH值为8,焙烧温...

Mg-Al hydrotalcites with different morphologies (denoted as LDH-1, LDH-2 and LDH-3) were synthesized via hydrothermal method by using magnesium nitrate and aluminum nitrate as raw materials, urea as precipitation reagent. The prepared samples were characterized by SEM, XRD, BET and EDS techniques.The adsorption performance of hydrotalcites and correspondingly calcined products (denoted as LDO-1, LDO-2 and LDO-3) for chloride ion were also investigated. The results showed that the rod-like Mg-Al hydrotalcite could be hydrothermally synthesized in the presence of glycol. The introduction of etha...