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Synthesis of a novel isatin and ethylenediamine modified resin and effective adsorption behavior towards Orange G

机译：一种新型甲醇和乙二胺改性树脂的合成及其对橙色G的有效吸附行为

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摘要

In this study, a novel crosslinked resin 135-I-EDA modified by isatin and ethylenediamine was synthesized through two continuous functionalization steps using chloromethylated styrene-divinylbenzene copolymer as the substrate. In the first step, the cross-linking reaction and isatin incorporation were realized in a creative one-pot reaction using Friedel-crafts reaction in the presence of isatin to give resin 135-I; in the second step, ethylenediamine was successfully introduced on the carbonyl of the modified isatin to further increase the chemically interacting sites. The double-modified resin 135-I-EDA displayed the best adsorption performance (113.38 mg g(-1)) towards Orange G, which is 1.99 times and 3.49 times as much as that of 135-I (56.94 mg g(-1)) and commercial resin H-103 (32.51 mg g(-1)) respectively. This is attributed to its superior porous structure formed in the Friedel-crafts reaction and multiple modified groups in isatin and ethylenediamine. - conjugation and hydrogen bonding are the main driving forces for the adsorption. The pseudo-second-order rate equation characterizes the adsorption kinetic curves well and 135-I-EDA displayed the fastest adsorption rate. The study also proved that the 135-I-EDA has a better adsorption capacity for OG in more acidic solution, at higher temperature and higher salinity, which provides a basis for the treatment of industrial dye wastewater.
机译：在这项研究中，一种新颖的交联的树脂135-I-EDA改性由靛红和乙二胺是使用氯甲基化的苯乙烯 - 二乙烯基苯共聚物作为基材通过两个连续的官能化步骤合成。在第一步骤中，交联反应和靛红被并入在一个创造性的一锅反应使用靛红的存在下Friedel-Crafts反应，得到实现树脂135-I;在第二步骤中，乙二胺成功地引入所述经修改的靛红，以进一步增加化学相互作用位点的羰基。双改性树脂135-I-EDA显示的最佳吸附性能（113.38毫克克（-1））朝向橙G，其是1.99倍和3.49倍，为的135-I（56.94毫克克（-1 ））和商业树脂H-103（32.51毫克克（-1））分别。这归因于形成在靛红和乙二胺的Friedel-Crafts反应和多种修饰的基团其优越的多孔结构。 - 缀合和氢键是主要的驱动力的吸附。伪二阶速率方程表征吸附动力学曲线良好，135-I-EDA显示最快的吸附率。该研究还证明，135-I-EDA具有多个酸性溶液为OG更好的吸附能力，在较高的温度和较高盐度，这提供了一种用于工业废水的处理的基础。

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  • 来源
    《RSC Advances》 |2019年第2期|共9页
  • 作者

    Yin Chai; Xu Chao; Yu Wenhao; Jia Yuxiang; Sun Weizhi; Zhou Guizhong; Xian Mo;

  • 作者单位

    Qingdao Univ Sci &

    Technol Qingdao 266042 Peoples R China;

    Qingdao Univ Sci &

    Technol Qingdao 266042 Peoples R China;

    Qingdao Univ Sci &

    Technol Qingdao 266042 Peoples R China;

    Chinese Acad Sci Qingdao Inst Bioenergy &

    Bioproc Technol Key Lab Biobased Mat Qingdao 266101 Peoples R China;

    Chinese Acad Sci Qingdao Inst Bioenergy &

    Bioproc Technol Key Lab Biobased Mat Qingdao 266101 Peoples R China;

    Qingdao Univ Sci &

    Technol Qingdao 266042 Peoples R China;

    Chinese Acad Sci Qingdao Inst Bioenergy &

    Bioproc Technol Key Lab Biobased Mat Qingdao 266101 Peoples R China;

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  • 正文语种 eng
  • 中图分类 化学;
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