原位生成微晶纖維素基復(fù)合分層材料的制備及吸附性能研究
發(fā)布時(shí)間:2018-02-16 08:37
本文關(guān)鍵詞: 微晶纖維素 二氧化錳 原位生成 Pb~(+) 復(fù)合分層材料 出處:《紡織導(dǎo)報(bào)》2017年01期 論文類型:期刊論文
【摘要】:本文以微晶纖維素(MCC)為載體,采用原位生成法,以高錳酸鉀(KMnO_4)和硫酸錳(MnSO_4)為納米二氧化錳前驅(qū)體,制得單層覆蓋均勻的微晶纖維素基復(fù)合分層材料MCC-MnO_2,并對(duì)其微觀結(jié)構(gòu)和化學(xué)構(gòu)成進(jìn)行了表征,通過(guò)模擬Pb~(2+)吸附實(shí)驗(yàn)探討了時(shí)間t和前驅(qū)體高錳酸鉀(KMnO_4)的濃度對(duì)吸附效果的影響。實(shí)驗(yàn)結(jié)果表明:當(dāng)高錳酸鉀的濃度為4 mmol/L、吸附時(shí)間為400 min時(shí),MCC-MnO_2對(duì)Pb~(2+)的吸附容量達(dá)到最大值,其飽和吸附容量高達(dá)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.
【作者單位】: 蘇州大學(xué)紡織與服裝工程學(xué)院;
【分類號(hào)】:TB33;X703
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本文編號(hào):1515105
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