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用阴、阳离子表面活性剂改性制得一系列阴-阳离子有机膨润土,表征了有机膨润土的结构特征,研究了对硝基苯酚在阴-阳离子有机膨润土/水间的界面行为,并探讨了其吸附机理.结果表明:阴-阳离子有机膨润土的层间距和有机碳含量与改性时阴、阳离子表面活性剂的组成和配比有关;阴-阳离子表面活性剂在有机膨润土中形成了增溶(分配)作用较强的有机相,在一定配比下对水中有机污染物产生协同效应.
A series of anion-cation organic bentonites were prepared by anionic and cationic surfactants. The structural characteristics of organobentonites were characterized. The interfacial behavior of p-nitrophenols in the anion-cation organic bentonite / water was investigated. The results showed that the interlayer spacing and the organic carbon content of the anion-cation organic bentonite were related to the composition and ratio of the anionic and cationic surfactants. The anion-cation surfactant formed a solubilized Distribution) a strong role in the organic phase, in a certain ratio of organic pollutants in the water have a synergistic effect.