摘要
以介孔SiO_2微球作为载体,通过调节APTES的加入量,进行表面氨基功能化修饰,优化寻找氨基(—NH_2)功能化介孔SiO_2微球(NH_2@MSM)的最佳制备条件.结果表明:加入APTES的量为V_(APTES)=1.0 mL(NH_2@MSM_(1.0))时,氨基的修饰量达到最大.以复合材料NH_2@MSM_(1.0)为载体吸附重金属离子(Cd^(2+)、Pb^(2+)、Cu^(2+)),4次循环吸附效率仍分别为84.0%,75.0%,89.0%,表明功能化介孔SiO_2微球是一种良好的循环吸附载体.
Amine-functionalized mesoporous silica microspheres （NH2@ MSM） were prepared by adjusting the amount of APTES. The optimum conditions for the preparation of NH2@ MSM were optimized. The results showed that when the amount of APTES was 1.0 mL （NH2@ MSM1.0）, the amount of --NH2 modification reached the maximum. The adsorption efficiency of heavy metal ions （Cd2＋ ,Pb2＋ and Cu2＋ ） on the composite NH2@ MSM1.0 was 84% ,75% and 89.0% respectively after four cycle adsorption, which indicated that NH2 @ MSM was a good carrier for cycle adsorption.
出处
《福建师范大学学报（自然科学版）》
CAS
CSCD
北大核心
2018年第1期60-64,共5页
Journal of Fujian Normal University：Natural Science Edition
基金
陕西省自然科学基础研究计划项目(2016JM5027
2016JM2018)
陕西学前师范学院"基础化学实验"资助项目
陕西省省级化学实验教学示范中心资助项目
