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首页> 外文期刊>Journal of Polymers and the Environment >Morphology, Modification and Characterisation of Electrospun Polymer Nanofiber Adsorbent Material Used in Metal Ion Removal
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Morphology, Modification and Characterisation of Electrospun Polymer Nanofiber Adsorbent Material Used in Metal Ion Removal

机译：金属离子去除中使用的电纺聚合物纳米纤维吸附材料的形态学，改性与表征

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摘要

Among a wide range of technologies available to separate metal ions, adsorption is a major treatment technique for removing or recovering metals from aqueous solutions. Electrospun nanofiber adsorbents have attracted research consideration due to the distinctive properties such as their high surface area, high porosity and high adsorption capacity which makes nanofibers a good choice for selective metal recovery applications. Thus, the modification of electrospun nanofiber adsorbents by functionalisation with suitable ligands for selective metal extraction is a growing area of scientific research aiming to improve the selectivity of the adsorption process. This study reviews and summarises available information related to the different nanofiber modification processes for increasing adsorption efficiency, functionality and selectivity of modified nanofiber adsorbents as well as improving their durability and stability during use. The surface properties of an adsorbent is an essential control factor for its metal ion adsorption efficiency. The various techniques available for characterisation of specific properties of nanofiber adsorbents are also considered. Lastly, the recovery of the metal ions after adsorption by regenerating adsorbent materials and understanding the kinetics of nanofiber adsorption processes is summarised and recommendations made for further studies in order to address existing weaknesses of these materials.
机译：在分离金属离子的各种技术中，吸附是用于从水溶液中除去或回收金属的主要处理技术。电纺纳米纤维吸附剂由于其高表面积，高孔隙率和高吸附能力等特殊性能而引起了研究考虑因素，这使得纳米纤维是选择性金属回收应用的良好选择。因此，通过用合适的配体进行选择性金属萃取的官能化改变Electrom an纳米纤维吸附剂是一种旨在改善吸附过程的选择性的科学研究的生长面积。本研究审查和总结了与不同纳米纤维改性工艺相关的可用信息，用于增加改性纳米纤维吸附剂的吸附效率，功能和选择性以及在使用期间提高其耐久性和稳定性。吸附剂的表面性质是其金属离子吸附效率的基本控制因子。还考虑了可用于表征纳米纤维吸附剂的特异性特性的各种技术。最后，总结了通过再生吸附材料吸附并理解纳米纤维吸附过程的动力学后的金属离子的回收，并为进一步研究提供建议，以解决这些材料的现有弱点。

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  • 来源
    《Journal of Polymers and the Environment》 |2019年第9期|1843-1860|共18页
  • 作者

    Pereao Omoniyi; Bode-Aluko Chris; Laatikainen Katri; Nechaev Alexander; Petrik Leslie;

  • 作者单位

    Univ Western Cape Environm & Nanosci Res Grp PMB X17 ZA-7535 Bellville South Africa|Joint Inst Nucl Res Flerov Lab Nucl React Dubna 141980 Russia|Fed Minist Educ Fed Secretarial Phase 3 Abuja Nigeria;

    Univ Western Cape Environm & Nanosci Res Grp PMB X17 ZA-7535 Bellville South Africa;

    Lappeenranta Lahti Univ Technol Lab Computat & Proc Engn POB 20 Lappeenranta 53851 Finland;

    Joint Inst Nucl Res Flerov Lab Nucl React Dubna 141980 Russia;

    Univ Western Cape Environm & Nanosci Res Grp PMB X17 ZA-7535 Bellville South Africa;

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  • 原文格式 PDF
  • 正文语种 eng
  • 中图分类
  • 关键词

    Adsorption; Electrospinning; Nanofiber; Morphology; Metal ion;

    机译：吸附;静电纺丝;纳米纤维;形态;金属离子;

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