Organic/inorganic hybrid filters based on dendritic and cyclodextrin "nanosponges" for the removal of organic pollutants from water
Organic/inorganic hybrid filters based on dendritic and cyclodextrin "nanosponges" for the removal of organic pollutants from water
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DOI：
10.1021/es052290v
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发表时间：
2006-04-15
影响因子：
11.4
通讯作者：
Perfler, R
中科院分区：
文献类型：
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作者：
Arkas, M;Allabashi, R;Perfler, R
长烷基链功能化的聚丙烯亚胺树枝状大分子、聚乙二亚胺超支化聚合物和β-环糊精衍生物完全不溶于水，具有包裹水中有机污染物的性能。陶瓷多孔过滤器可以用这些化合物浸渍，从而形成有机/无机混合过滤模块。通过使用各种水污染物的连续过滤实验，测试了这些混合过滤组件对水的有效净化。多环芳烃(PAHs)的脱除效率很高(95%以上)，最终浓度可达几ppb(Mu g/L)。三卤代甲烷(THMS)、单芳烃(BTX)和杀虫剂(西马津)等污染物组的代表也可以被去除(80%)，尽管在这些情况下过滤器饱和的速度要快得多。
Long-alkyl chain functionalized poly(propylene imine) dendrimer, poly(ethylene imine) hyperbranched polymer, and beta-cyclodextrin derivatives, which are completely insoluble in water, have the property of encapsulating organic pollutants from water. Ceramic porous filters can be impregnated with these compounds resulting in hybrid organic/inorganic filter modules. These hybrid filter modules were tested for the effective purification of water, by continuous filtration experiments, employing a variety of water pollutants. It has been established that polycyclic aromatic hydrocarbons (PAHs) can be removed very efficiently (more than 95%), and final concentrations of several ppb (mu g/L) are easily obtained. Representatives of the pollutant group of trihalogen methanes (THMs), monoaromatic hydrocarbons (BTX), and pesticides (simazine) can also be removed (> 80%), although the filters are saturated considerably faster in these cases.