原位生成微晶纤维素基复合分层材料的制备及吸附性能研究

发布时间：2018-02-16 08:37

本文关键词： 微晶纤维素二氧化锰原位生成 Pb~(+) 复合分层材料　出处：《纺织导报》2017年01期 　论文类型：期刊论文

【摘要】：本文以微晶纤维素(MCC)为载体,采用原位生成法,以高锰酸钾(KMnO_4)和硫酸锰(MnSO_4)为纳米二氧化锰前驱体,制得单层覆盖均匀的微晶纤维素基复合分层材料MCC-MnO_2,并对其微观结构和化学构成进行了表征,通过模拟Pb~(2+)吸附实验探讨了时间t和前驱体高锰酸钾(KMnO_4)的浓度对吸附效果的影响。实验结果表明:当高锰酸钾的浓度为4 mmol/L、吸附时间为400 min时,MCC-MnO_2对Pb~(2+)的吸附容量达到最大值,其饱和吸附容量高达265.3 mg/g。
[Abstract]:In this paper, using microcrystalline cellulose (MCC) as carrier, in situ generation method, using potassium permanganate (KMnO4) and manganese sulfate (MnSO4) as nanocrystalline manganese dioxide precursors, MCC-MnO _ 2 composite laminated material with homogeneous monolayer covering microcrystalline cellulose was prepared. The microstructure and chemical composition of MCC-MnO _ 2 were characterized. The effects of time t and concentration of precursor KMnO4) on the adsorption of Pb~(2 were investigated by simulated Pb~(2) adsorption experiments. The results showed that when the concentration of potassium permanganate was 4 mmol / L and the adsorption time was 400 min, MCC-MnO _ 2 could adsorb Pb~(2). Maximum capacity, Its saturated adsorption capacity is 265.3 mg / g.
【作者单位】：苏州大学纺织与服装工程学院;
【分类号】：TB33;X703

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