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首页> 外文会议>International Conference on "Times of Polymers and Composites" >Organic-inorganic hybrid composites for removal of heavy metal ions from water
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Organic-inorganic hybrid composites for removal of heavy metal ions from water

机译：有机 - 无机杂化复合材料，用于从水中除去重金属离子

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Organic-inorganic hybrid materials with excellent heavy metal ions chelating properties were prepared by covalent bonding of vinyl-terminated polyamidoamine (PAA) onto aminated silica particles. Two series of polyamidoamine grafted silica, differing in the PAA chemical structure, were synthesized and their heavy metal ions chelating properties were investigated. Column adsorption procedure for Cu, Zn and Ni in aqueous solution was successfully established Moreover, the adsorption behaviour of the materials was evaluated in different ionic strength solutions as well as in the distilled and natural water. Organic-inorganic hybrid materials exhibited good chelating properties and selectivity for metal ions. The hybrid columns exhibited excellent eluting and regenerating property using diluted hydrochloric acid solution as eluent. The hybrid materials containing more carboxy groups possessed superior adsorption ability, reusability and stability which can be repeated to use 20 cycles with recoveries not less than 95%.
机译：通过将乙烯基封端的聚酰胺（PAA）的共价键合在酰胺二氧化硅颗粒上，制备具有优异重金属离子螯合性质的有机无机杂化材料。合成了两种系列聚酰胺胺接枝二氧化硅，不同于PAA化学结构，并研究了它们的重金属离子螯合性能。成功地确定了Cu，Zn和Ni中Cu，Zn和Ni的柱吸附方法，在不同的离子强度溶液以及蒸馏和天然水中评价材料的吸附行为。有机 - 无机杂化材料表现出良好的螯合性能和金属离子的选择性。杂交柱使用稀盐酸溶液作为洗脱液表现出优异的洗脱和再生性。含有更多羧基的杂化材料具有优异的吸附能力，可重复使用性和稳定性，可以重复使用20个回收率不小​​于95％的循环。

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