西北师范大学学报（自然科学版）2017，Vol.53Issue(5)：49-56,8.DOI:10.16783/j.cnki.nwnuz.2017.05.010
胶束模板法构筑多孔吸附剂及其对稀土金属La(Ⅲ)和Gd(Ⅲ)的吸附性能研究
A porous adsorbent prepared via micelle template for efficientabsorption of rare-earth metals La(Ⅲ) and Gd(Ⅲ)
摘要
Abstract
A kinds of hybrid porous material (XG-g-P(AA-co-SS)/ISC) is successfully synthesized with the xanthan gum(XG) as grafting backbone,acrylic acid(AA) and sodium p-styrenesulfonate(SS) as the monomers,illite/smectite clay(ISC) as the inorganic additive and the hexamethylene(HM) as organic phase by the free-radical grafting polymerization reaction via SDS micelle template.The prepared XG-g-P(AA-co-SS)/ISC is used as an adsorbent for the adsorption of La(Ⅲ) and Gd(Ⅲ) from aqueous solution.The results show that the porous structure of the material is formed via the micelle template and the appropriate HM has the positive effect for forming the porous structure in matrix of material.The adsorption results indicate that the porous adsorbent XG-g-P(AA-co-SS)/ISC has well adsorption behavior for La(Ⅲ) and Gd(Ⅲ).The maximum adsorption capacities of the adsorbent for La(Ⅲ) and Gd(Ⅲ) are 277.1 and 249.4 mg·g-1,respectively,and the adsorption quickly achieves equilibrium within 15 min for 25 mL 200 mg·L-1 La(Ⅲ) and Gd(Ⅲ).Furthermore,the porous adsorbent exhibits an excellent cycling stability by eight adsorption-desorption cycles.关键词
多孔材料/胶束模板法/吸附/稀土金属Key words
porous material/micelle template/adsorption/rare-earth metal分类
化学化工引用本文复制引用
王锋,王文波,朱永峰,王爱勤..胶束模板法构筑多孔吸附剂及其对稀土金属La(Ⅲ)和Gd(Ⅲ)的吸附性能研究[J].西北师范大学学报（自然科学版）,2017,53(5):49-56,8.基金项目
国家自然科学基金资助项目(51403221) （51403221）
