海藻酸钠的亲水性和其凝胶的三维网状结构赋予海藻酸钠水凝胶良好的吸附性能,成为处理水中污染物的理想吸附材料。碳材料如石墨烯、碳纳米管等因其具有较高的比表面积,常用于污染物的吸附,与海藻酸钠复合可进一步改善和丰富海藻酸钠凝胶的性能。针对海藻酸钠-碳材料复合凝胶吸附水中污染物的研究现状,以氧化石墨烯、碳纳米管和活性炭这3种碳材料为主线,简单总结了海藻酸钠-碳材料复合凝胶吸附水中污染物的研究进展,并提出需要解决的若干问题。
The hydrophilic properties of sodium alginate(SA) and the 3D reticular structure of the gel give the alginate hydrogel good adsorption properties,and become an ideal adsorbent for treating pollutants in water.Carbon materials such as graphene and carbon nanotubes are commonly used for adsorption of pollutants because of their high specific surface area.Combined with SA can further improve and enrich the properties of alginate gel.In view of the research status of SA-C composite gel adsorbing pollutants in water,the research progress on adsorption of pollutants in water by SA-C composite gel was briefly summarized based on three kinds of carbon materials,graphene oxide,carbon nanotubes and activated carbon.Some problems that need to be solved were put forward.
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