采用超滤膜分离技术纯化由液相沉淀法合成的纳米氧化铁水合物,考察超滤膜材质及截留分子量(MWCO)、膜分离过程操作参数对透过通量大小及稳定性的影响;并研究膜污染机制及相应的清洗方案.结果表明,纯化效果好、效率高,且污染膜易于清洗,可重复使用,膜法纯化不失为一有效的纯化新途径.
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