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中文摘要：
采用强酸表面氧化法对碳纳米管表面进行处理，促进碳纳米管在水中的分散，制备碳纳米管溶胶，用于去除水中低浓度持久性有机污染物异狄氏剂。扫描电镜观测表明，氧化后的碳纳米管团簇被分散开，碳纳米管被打断。碳纳米管溶胶对异狄氏剂的吸附性能研究表明，制备的碳纳米管溶胶对异狄氏剂吸附去除效能优于原始碳纳米管，优化的pH值为6，此时碳纳米管溶胶对18μg／L异狄氏剂去除率达到100％；水中的腐殖质提高了吸附去除效能；碳纳米管溶胶对异狄氏剂的吸附等温线呈线性，碳纳米管溶胶的吸附性能优于原始碳纳米管吸附性能。吸附去除后，溶胶态碳纳米管以0．05mmol／L氯化铝从水中沉淀分离。
英文摘要：
Carbon nanotubes （CNTs） sol was prepared by oxidation using strong acid and used for removal of low concentration endrin, a kind of persistent organic pollutants （POPs）. Scanning electron microscopy observation shows that, after oxidation, the CNTs clusters were dispersed and the tubes were broken up. The adsorption experimental results show that the CNTs sol has good adsorption properties for removal of endrin. The optimized pH is 6 and the removal efficiency of CNTs sol from 18μg/L endrin solution reaches 100%. Humic substance in water enhances the removal. The adsorption isotherm of endrin to CNTs sol is linear and the removal efficiency of CNTs sol is higher than that of as-prepared CNTs. After adsorption, the dispersed CNTs can be separated from water using 0.05 mmol/L AlCl3.
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