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OALib Journal期刊
ISSN: 2333-9721
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Mg/Al/Fe复合氧化物吸附去除水体中氟化物的研究
Keywords: 水滑石,氟离子,吸附,重整
Abstract:
采用水热法合成了不同铁掺杂量的Mg/Al/Fe型类水滑石（MAF），根据X射线衍射（XRD）的测定结果，铁存在一个最佳投加量，铁的掺杂量过大则会导致水滑石的层状结构被破坏。通过扫描电镜（SEM）和比表面分析仪（BET）研究了MAF焙烧后的复合金属氧化物（CMAF）的结构和性能，并考察了CMAF对水中氟离子的吸附性能。与CMA相比（铁掺杂量为零），CMAF对氟离子的吸附去除效率明显提高（最大吸附容量75.2mg/g），整个吸附过程可以用Langmuir吸附等温线更好地描述。通过XRD测定和晶格参数计算，C
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