Removal of organic micro-pollutants from water by β-cyclodextrin triazine polymers
Removal of organic micro-pollutants from water by β-cyclodextrin triazine polymers
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DOI：
10.1007/s10847-018-0851-8
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发表时间：
2018-10
影响因子：
2.3
通讯作者：
Junzuo Wang;M. Harrison
中科院分区：
文献类型：
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作者：
Junzuo Wang;M. Harrison
通过β-环糊精（β-CD）与三聚氯氰的亲核取代反应合成了β-CD聚合物。得到不溶性聚合物。采用DSC、TGA、FTIR、SS-13 CNMR等手段对聚合物进行了表征。研究了聚合物和活性炭（AC-Darco）对双酚A（BPA）、2-萘酚、2-氯联苯（PCBNO 1）、苯和邻苯二甲酸二丁酯等模拟微污染物的去除效果。结果表明，β-CD-三嗪类聚合物对BPA的吸附性能优于活性炭; β-CD-三嗪类聚合物对水中苯的去除效果与活性炭相当，但对2-萘酚、PCBNO 1和邻苯二甲酸二丁酯的去除效果不如活性炭。合成了不同β-CD与三聚氯氰比例的β-CD-三嗪聚合物，并评价了其对模拟微污染物的降解性能。β-CD-三嗪聚合物对水中微量污染物的去除效果与其CD浓度相关，但对苯的去除效果与其CD浓度相近。
β-Cyclodextrin (CD) polymers were synthesized by nucleophilic substitutions between β-CD with cyanuric chloride. Insoluble polymers were obtained. Polymers were characterized by DSC, TGA, FTIR, SS-13CNMR. Polymers and activated carbon (AC-Darco) were used to remove model micro-pollutants of bisphenol-A (BPA), 2-naphthol, 2-cholor-biphenyl (PCBNO1), benzene and dibutyl phthalate from water. The results showed that β-CD-triazine polymers showed better performance to adsorb BPA compared with activated carbon; β-CD-triazine polymer showed similar performance to activated carbon on removing benzene from water; however, it showed worse performance for removing 2-naphthol, PCBNO1 and dibutylphthalate by comparison with activated carbon. β-CD-triazine polymers with varying ratio of β-CD to cyanuric chloride were synthesized and their performance on model micro-pollutants were evaluated. Removal efficiency of micro-pollutants from water for β-CD-triazine polymers correlated with their CD concentration except for removing benzene which showed similar performance.