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聚二甲基二烯丙基氯化铵/偶联剂改性膨润土对苯酚的吸附研究

New Chemical Materials(2022)

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Abstract
采用阳离子聚电解质聚二甲基二烯丙基氯化铵(PDMDAAC)和硅烷偶联剂(KH550)对钙基膨润土进行改性,得到有机改性膨润土.研究发现,PDMDAAC和KH550成功负载在膨润土表面,其结构没有发生改变.以苯酚为吸附对象,采用该有机改性膨润土对其进行模拟吸附,当有机改性膨润土的投加量为2g/L,吸附时间20min,pH=7,温度30℃时,苯酚废水去除率高达87%.有机膨润土吸附苯酚符合Langmuir等温吸附模型,为表面化学吸附过程.
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