南华大学学报（自然科学版）2016，Vol.30Issue(4)：11-15,5.
二氧化硅胶体聚合体吸附铀的研究
Study of SiO2 Colloids Polymer for Uranium(VI) Absorption in Water Solution
摘要
Abstract
The aim of this study was to explore the adsorption behavior of uranium( VI) on self￣made SiO2 colloids polymer.The influences of pH value,contact time and the initial u￣ranium(VI) concentration on the adsorption course was analyzed.The result shown that pH value had important influences on the adsorption course,pH=4 is the optimal condition for uranium(VI) adsorption,in that condition, the absorb speed of uranium(VI) onto SiO2 colloids polymer is fast,adsorption equilibrium time is less than 30 minutes.For a 10 mg/L uranium( VI) concentration water solution,uranium( VI) removed percentage is more than 98%,uranium(VI) removed percentage decrease along with uranium(VI) concentration ascend.The characteristics of the SiO2 colloids were identified by SEM and EDS.The SEM result demonstrates that surface characteristics of SiO2 colloids polymer after adsorbed al￣most the same as that of SiO2 colloids polymer before adsorbed.EDS result confirmed that 1 g adsorbent contain 4.32% uranium( VI) ,the data matches that 43.0 mg quality loss of u￣ranium( VI) in water solution after adsorbed.关键词
二氧化硅胶体聚合体/吸附/铀Key words
SiO2 colloids polymer/absorption/uranium分类
资源环境引用本文复制引用
王清良,韦克钢,张琪,黄龙,胡鄂明,许娜..二氧化硅胶体聚合体吸附铀的研究[J].南华大学学报（自然科学版）,2016,30(4):11-15,5.基金项目
国家自然科学基金资助项目(11675072) （11675072）
