摘要
通过浸渍 -共沉淀法 ,在SiMCM -41分子筛表面负载氧化铈 ,制备出对水体中氟离子具有特效选择吸附作用的新型除氟材料 ;研究了浸渍次数、铈的添加量和煅烧温度等对除氟剂制备性能的影响 ;并通过SEM、XRD的IR等手段对除氟剂材料进行了表征。
A new adsorbent of Cerium(Ⅳ) oxide coated on SiMCM-41 was developed for removal of fluoride ion in water by using wetness impregnation-coprecipitation method. The adsorbent has been investigated by SEM, XRD and IR techniques. It has been found that the optimum impregnation times, ratio of Ce/Si and calcinations temperature are 2 times, 1:30 and 540℃, respectively. The experimental results showed that the adsorbent was effective for removal of F- ion, but was less effective towards Cl-, NO3- and SO42- ions.
出处
《农业环境保护》
CSCD
2000年第5期293-295,共3页
Agro-Environmental Protection
基金
天津市21世纪-青年科学基金!资助(983702211)
关键词
氧化铈
除氟剂
氟净化
水处理
分子筛
cerium(Ⅳ) oxide
SiMCM-41
fluorine adsorbent
preparation
removal of fluorine
