硅酸盐通报2012，Vol.31Issue(5)：1039-1043,5.
C-S-H凝胶对Pb(Ⅱ)的吸附固化作用
Adsorption and Solidification of Pb(Ⅱ) by C-S-H Gel
摘要
Abstract
In order to investigate the adsorption and solidification of Pb(II) , pure C-S-H gel and Pb-doped C-S-H gel were synthesized using analytical reagent grade Ca(NO3)2·4H2O、Na2SiO3·9H2O and Pb ( NO3) 2 as raw materials by the solution reaction. The results showed the C-S-H gel had good adsorption ability while soluble lead salts increased from 2% to 6% . The X-ray diffraction patterns of Pb-doped C-S-H gel changed obviously,both in peak shift and the emergence of Ca(OH)2 diffraction peaks. Infrared tests showed that Si linkage models had been changed in the way that Q2 stretching vibration shifted to lower wavenumber and Q stretching vibration peak absorption intensity increased, specially for silicon-oxide tetrahedron structure existing in Pb-doped C-S-H gel.关键词
C-S-H凝胶/Pb(Ⅱ)/吸附固化Key words
C-S-H gel/Pb(II) /adsorption and solidification分类
建筑与水利引用本文复制引用
王昕,刘晶,汪澜,考宏涛..C-S-H凝胶对Pb(Ⅱ)的吸附固化作用[J].硅酸盐通报,2012,31(5):1039-1043,5.基金项目
国家重点基础研究发展计划(973计划)项目资助(2010CB735803) （973计划）
