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首页> 外文期刊>Journal of Applied Polymer Science >Removal of copper ions from aqueous solutions by adsorption onto wheat straw cellulose-based polymeric composites
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Removal of copper ions from aqueous solutions by adsorption onto wheat straw cellulose-based polymeric composites

机译：通过吸附在小麦秸秆纤维素的聚合物复合材料上从水溶液中除去铜离子

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摘要

The wheat straw cellulose-based hydrogels were synthesized by graft copolymerization followed by semi-interpenetrating network technology. The prepared hydrogels were characterized through various methods including Fourier transform infrared spectra, scanning electron microscope, thermogravimetric analysis, and X-ray photoelectron spectroscopy. Batch adsorption experiments were carried out to investigate the adsorption performances of hydrogels toward Cu(II) ions. The results suggested that the introduction of semi-interpenetrating network polymers, sodium alginate and poly(vinyl alcohol), could greatly enhance the adsorption property of hydrogels. And the wheat straw cellulose-g-poly(potassium acrylate)/sodium alginate hydrogel showed a highest Cu(II) ions adsorption capacity of 130 mg/g. The equilibrium isotherm and adsorption kinetics were also studied. Besides, the mass transfer coefficients and the thermodynamics of Cu(II) ions adsorption were also probed. Finally, the X-ray photoelectron spectroscopy analysis further demonstrated that the Cu(II) ions adsorption was mainly via complexation reaction of NH2 and O-containing groups in hydrogels. (c) 2018 Wiley Periodicals, Inc. J. Appl. Polym. Sci. 2018, 135, 46680.
机译：通过接枝共聚合成小麦秸秆纤维素的水凝胶，然后通过半渗透网络技术合成。通过各种方法表征制备的水凝胶，包括傅里叶变换红外光谱，扫描电子显微镜，热重分析和X射线光电子能谱。进行批量吸附实验，以研究水凝胶对Cu（II）离子的吸附性能。结果表明，引入半渗透网络聚合物，藻酸钠和聚（乙烯醇），可以大大提高水凝胶的吸附性能。并且小麦秸秆纤维素-G-聚（丙烯酸钾）/藻酸钾水凝胶显示出最高的Cu（II）离子吸附容量为130mg / g。还研究了均衡等温线和吸附动力学。此外，还探测了Cu（II）离子吸附的传质系数和热力学。最后，X射线光电子能谱分析进一步证明了Cu（II）离子吸附主要通过水凝胶中的NH 2和O含量的络合反应。 （c）2018 Wiley期刊，Inc.J.Phill。聚合物。 SCI。 2018,135,46680。

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  • 来源
    《Journal of Applied Polymer Science》 |2018年第36期|共11页
  • 作者

    Kong Wenjia; Li Qian; Li Xiaodi; Su Yuan; Yue Qinyan; Zhou Weizhi; Gao Baoyu;

  • 作者单位

    Shandong Univ Sch Environm Sci &

    Engn Shandong Prov Key Lab Water Pollut Control &

    Reso Jinan 250100 Shandong Peoples R China;

    Shandong Univ Sch Environm Sci &

    Engn Shandong Prov Key Lab Water Pollut Control &

    Reso Jinan 250100 Shandong Peoples R China;

    Shandong Univ Sch Environm Sci &

    Engn Shandong Prov Key Lab Water Pollut Control &

    Reso Jinan 250100 Shandong Peoples R China;

    Shandong Univ Sch Environm Sci &

    Engn Shandong Prov Key Lab Water Pollut Control &

    Reso Jinan 250100 Shandong Peoples R China;

    Shandong Univ Sch Environm Sci &

    Engn Shandong Prov Key Lab Water Pollut Control &

    Reso Jinan 250100 Shandong Peoples R China;

    Shandong Univ Sch Environm Sci &

    Engn Shandong Prov Key Lab Water Pollut Control &

    Reso Jinan 250100 Shandong Peoples R China;

    Shandong Univ Sch Environm Sci &

    Engn Shandong Prov Key Lab Water Pollut Control &

    Reso Jinan 250100 Shandong Peoples R China;

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  • 原文格式 PDF
  • 正文语种 eng
  • 中图分类 高分子化合物工业（高聚物工业）;
  • 关键词

    adsorption; copolymers; grafting; resins; swelling;

    机译：吸附;共聚物;嫁接;树脂;肿胀;

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