碳纳米管及其复合材料在水中有机污染物去除中的应用

在人类社会高速发展的同时,一些有机污染物被排入水体中造成严重的环境污染,其中部分有机物被证明对人体和水中生物存在直接或潜在的毒性。碳纳米管作为一种结构特殊且具有良好电学、力学、化学性质的新型一维纳米材料,在水处理中得到了广泛的应用。文中总结了碳纳米管及其复合材料的制备方法,及其在吸附、高级氧化、膜分离3种工艺中的应用情况,简述了污染物的反应去除机理及协同效应等。同时,对碳纳米管在水处理领域中的发展前景进行了展望。

Application of Carbon Nanotubes and Composite Materials in Organic Pollutants Removal in Water

With rapid development of human society,some organic pollutants are discharged into waters and cause serious pollution to the environment,some of which have been proven to have direct or potential toxicity to human bodies and aquatic organisms.Carbon nanotube(CNT),as a new type of one-dimensional nanomaterials with special structure and excellent electrical,mechanical and chemical properties,has been widely used in water treatment.In this review,synthesis methods and application of carbon nanotubes composite materials in three processes,including adsorption,advanced oxidation,and membrane separation,are summarized.Also,removal mechanisms of organic pollutants and synergistic effects of composite materials are briefly described.Meanwhile,development prospect of carbon nanotubes in water treatment is expected.