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首页> 外文期刊>Advanced Functional Materials >Superparamagnetic Ag@Co-Nanocomposites on Granulated Cation Exchange Polymeric Matrices with Enhanced Antibacterial Activity for the Environmentally Safe Purification of Water
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Superparamagnetic Ag@Co-Nanocomposites on Granulated Cation Exchange Polymeric Matrices with Enhanced Antibacterial Activity for the Environmentally Safe Purification of Water

机译：超顺磁性Ag @ Co-纳米复合材料在具有增强抗菌活性的粒状阳离子交换聚合物基体上对环境安全的水净化

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摘要

Cation exchange polymeric matrices are widely used in water treatment protocols to reduce the mineral content of hard waters, even for human consumption. However, they are not antibacterial and flowing bacteria can be trapped in their structures and proliferate, thus acting as microbial contamination sources. Here, Ag@Co-nanoparticles (Ag@Co-NPs) with a low-cost superparamagnetic Co°-core and an antibacterial Ag-shell are synthesized on granulated cation exchange polymeric matrices under soft reaction conditions. The presence of these NPs provides the final nanocomposite (NC) with additional functionalities (superparamagnetism and antibacterial activity) making it ideal for water purification applications. Ag@Co-NPs are synthesized in situ on four cation exchange polymeric matrices containing either strong (sulfonic) or weak (carboxylic) acid functional groups homogeneously distributed (C-type) or concentrated on an external shell (SST-type) by the intermatrix synthesis (IMS) method. The NCs are characterized (metal content, NP size and distribution, metal oxidative state, and metal release) and evaluated for water purification applications.
机译：阳离子交换聚合物基质广泛用于水处理方案中，以减少硬水的矿物质含量，甚至供人类食用。但是，它们不是抗菌的，流动的细菌会被困在它们的结构中并扩散，从而成为微生物污染源。在这里，在软反应条件下，在粒状阳离子交换聚合物基体上合成了具有低成本超顺磁性Coo核和抗菌Ag壳的Ag @ Co纳米粒子（Ag @ Co-NPs）。这些NP的存在为最终的纳米复合材料（NC）提供了额外的功能（超顺磁性和抗菌活性），使其成为净水应用的理想选择。 Ag @ Co-NPs是在四种阳离子交换聚合物基质上原位合成的，这些基质包含强（磺酸）或弱（羧酸）官能团，它们通过基质均匀分布（C型）或浓缩在外壳上（SST型）综合（IMS）方法。对NC进行表征（金属含量，NP尺寸和分布，金属氧化态和金属释放），并进行水净化应用评估。

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  • 来源
    《Advanced Functional Materials》 |2013年第19期|2450-2458|共9页
  • 作者

    Amanda Alonso; Xavier Munoz-Berbel; Nuria Vigues; Rosalia Rodriguez-Rodriguez; Jorge Macanas; Maria Munoz; Jordi Mas; Dmitri N. Muraviev;

  • 作者单位

    Department of Chemistry Universitat Autonoma de Barcelona (UAB) Bellaterra, Barcelona, 08913, Spain;

    Centre Nacional de Microelectronica (IMB-CNM, CSIC) Bellaterra, Barcelona, 08913, Spain;

    Department of Genetics and Microbiology Universitat Autonoma de Barcelona (UAB) Bellaterra, Barcelona, 08913, Spain;

    Department of Pharmacology School of Pharmacy Universidad de Sevilla (US) Sevilla, 41004, Spain;

    Department of Chemical Engineering Universitat Politecnica de Catalunya (UPC) Terrassa, 08222, Spain;

    Department of Chemistry Universitat Autonoma de Barcelona (UAB) Bellaterra, Barcelona, 08913, Spain;

    Department of Genetics and Microbiology Universitat Autonoma de Barcelona (UAB) Bellaterra, Barcelona, 08913, Spain;

    Department of Chemistry Universitat Autonoma de Barcelona (UAB) Bellaterra, Barcelona, 08913, Spain;

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