交联聚乙烯醇磷酸酯的制备及对Eu^(3+)和Am^(3+)的吸附研究  

Preparation of Cross-Linked Polyvinyl Alcohol Phosphate Ester and Its Property on Adsorption of Europium(Ⅲ) and Americium(Ⅲ)

作　　者：张东[1] 王艳[2] 谭昭怡[2] 余安国[2] 罗顺忠[1] 帅震清[2] 冯易君[2] 

机构地区：[1]中国工程物理研究院,四川绵阳621900 [2]四川大学化学学院,成都610064

出　　处：《四川大学学报（自然科学版）》2003年第6期1143-1147,共5页Journal of Sichuan University(Natural Science Edition)

基　　金：国家自然科学基金(10175047);中国工程物理研究院科研项目

摘　　要：报道了聚乙烯醇磷酸酯缩丁醛(P PVB)的制备方法,考察了它对Eu3+和Am3+的吸附性能.发现P PVB对Eu3+的吸附性能强,其中25℃时静态饱和吸附容量为165.30mg·g-1,动态吸附容量为176.37mg·g-1,最高吸附率可达98%以上,并具有重复使用性.P PVB对Am3+也有很好的吸附效果,去污率可达99%以上.Cross-linked polyvinyl alcohol phosphate ester(P-PVB) was prepared .In this process ,phosphoric acid was first utilized for the esterification of PVA, the product subsequently was (cross-linked) with butyraldehyde. Adsorption capacity of Eu^(3+) and Am^(3+) on P-PVB was investigated. It's found that adsorption capacity of Eu^(3+) on P-PVB is good, the highest adsorption efficiency reaches 98%,the statically saturated adsorbing capacity at 25℃ is 165.30 mg·g^(-1),the dynamic one is 176.37mg·g^(-1),and it can be reused for six times with high adsorption capacity.In addition , P-PVB is also effective to Am^(3+ )and the highest adsorption efficiency reaches 99% .

关 键 词：铕 镅 P-PVB 吸附 去污 

分 类 号：O631.5[理学—高分子化学]