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以Na BH4还原水杨醛席夫碱修饰坡缕石为核,采用发散法通过与三聚氯氰、4-氨甲基哌啶、水杨醛、Na BH4还原的重复反应制备了1.0~2.0 G多羟基树状高分子/坡缕石复合材料,利用红外光谱、元素分析、热重对复合材料结构进行了表征,扫描电子显微镜测定了复合材料的外部形貌。吸附实验表明:该复合材料对废水中有机酚、重金属离子的吸附能力优于坡缕石原土,10 mg第二代树状高分子/坡缕石在293 K,对初始质量浓度是50mg/L的对硝基苯酚、对苯二酚、Pb(Ⅱ)的吸附量分别是35.3、34.02、44.8 mg/g,吸附动力学拟合结果符合拟二级动力学方程。
NaB2S-reduced salicylaldehyde Schiff base-modified palygorskite nuclei were prepared by the divergent method with cyanuric chloride, 4-aminomethylpiperidine, salicylaldehyde, Na BH4 reduction of the repeated reactions prepared 1.0 ~ 2.0G more Hydroxy dendrimer / palygorskite composites. The structure of the composites was characterized by FTIR, elemental analysis and thermogravimetry. The morphology of the composites was characterized by scanning electron microscopy. Adsorption experiments showed that the adsorption capacity of organic compounds and heavy metal ions in waste water was better than that of palygorskite. The second generation dendritic polymer / palygorskite was at 293 K and the initial concentration was 50 mg / L P-nitrophenol, hydroquinone and Pb (Ⅱ) were 35.3, 34.02 and 44.8 mg / g, respectively. The adsorption kinetics fitted the pseudo-second-order kinetic equation.