Extraction Properties of Nickel (II) with Polymeric Particles with Interconnected Spherical Pores Impregnating with LIX84-I
Extraction Properties of Nickel (II) with Polymeric Particles with Interconnected Spherical Pores Impregnating with LIX84-I
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DOI：
10.15261/serdj.20.137
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发表时间：
2013-01-01
影响因子：
0.7
通讯作者：
Shiomori, Koichiro
中科院分区：
文献类型：
--
作者：
Kitabayashi, Takuro;Sana, Takashi;Shiomori, Koichiro
采用溶剂挥发法将1-（2-羟基-5-壬基苯基）乙酮肟（LIX 84-I）浸渍到具有相互连通的球形孔的聚合物颗粒中。以二乙烯基苯为壁材，在W/O/W乳液的有机相中进行自由基聚合。聚合物颗粒的直径几乎恒定在约208 ± 26 μ m。在所有制备条件下，聚合物颗粒中LIX 84-I的浸渍产率高于80%。在高于6的pH值下，用LIX 84-I浸渍的聚合物颗粒对Ni（II）的萃取急剧增加。通过定量分析萃取的Ni（II）的最大量与浸渍在聚合物颗粒中的LIX 84-I的量之间的关系，证实了三个LIX 84-I分子与一个Ni（II）离子反应。在聚合物颗粒内部存在的相互连接的球形孔的Ni（II）的萃取速率有效地加快。
1-(2-hydroxyl-5-nonyphenypethanone oxime (LIX84-I) was impregnated into polymeric particles with interconnected spherical pores by the solvent evaporation method. Divinylbenzene was used as a wall material and polymerized in the organic phase of a (W/O/W) emulsion by free radical polymerization. The diameter of the polymeric particles was almost constant at around 208 +/- 26 mu m. The impregnated yield of LIX84-I in the polymeric particles was higher than 80% in all preparation conditions. The extraction of Ni(II) with the polymeric particles impregnated with LIX84-I sharply increased at pH values higher than 6. It is confirmed that three molecules of LIX84-I reacted with one Ni(II) ion by quantitative analysis of the relationship between the maximum amounts of Ni(II) extracted and the amount of LIX84-I impregnated in the polymeric particles. The extraction rate of Ni(II) was effectively accelerated by the presence of the interconnected-spherical pores in the inside of the polymeric particles.