海藻酸钠水溶液能与金属离子发生交联反应形成海藻酸钙凝胶,该凝胶是与其他常见吸附剂形成复合吸附剂的理想骨架,有利于对水溶液中污染物的去除,但关于海藻酸钠复合材料吸附污染物的综述较少。从海藻酸钠及其复合物、磁性海藻酸钠、磁性海藻酸钠复合物等三方面简要介绍了国内外研究学者对海藻酸钠复合材料的制作过程、海藻酸钠复合材料吸附的影响因素以及复合吸附剂对污染物的吸附性能,分析认为带磁性的海藻酸钠复合吸附剂具有吸附多种污染物、易从水溶液中脱离等优点,是未来吸附剂研究的热点。
Sodium alginate solution can crosslink with divalent metal ions to form calcium alginate gel.The gel is ideal framework for forming composite adsorbents with other common adsorbents.It is benneficial to remove contaminants from aqueous solution.However,there are few reviews on the adsorption of pollutants by sodium alginate composites.The preparation process of sodium alginate composite materials by domestic and foreign researchers was briefly introduced from three aspects:sodium alginate and complex,magnetic sodium alginate complex,the influence factors of sodium alginate composite and its adsorption property to pollutants.It was concluded that the the magnetic sodium alginate composite adsorbent had the advantages of absorbing a variety of pollutants and being easy to be separated from aqueous solution.
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基金资助
江西省教育厅科学技术研究项目(GJJ90340)
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