摘要
采用十六烷基三甲基溴化铵(CTMAB)制备改性斜发沸石,重点研究了改性剂的用量、改性时间、改性温度对改性白银斜发沸石吸附对硝基苯胺的影响。同时对斜发沸石改性前后的吸附性能进行了比较。结果表明,CTMAB改性的最佳时间为4 h,最佳浓度为10 g/L,改性温度对沸石吸附有机物的影响不大。改性斜发沸石对对硝基苯胺的吸附明显高于天然斜发沸石,且吸附等温线符合Frendlich方程。
The modifying clinoptilolit was prepared by using hexadecyltrlmethylammonuium bromide （CTMAB） surfactants. The elleet of the amotmt of CTMAB , modifying time and modifying temperture on modifying clinoptilolit adsorption of p-nitroaniline was specially discussed and the adsorptive ability of p-nitroaniline of nature elinoptilolit and that of modified elinoptilolit was compared, it was found that the optimum time for modifying elinoptilolit was 4 h and the optimum concentration was 10 g/L. The modify temperature had little effect on elinoptilolit adsorption. The ability of modified elinoptilolit for adsorbing p-nitroaniline was obviously higher than that of nature elinoptilolit. The adsorption of p-nitroaniline on modified clinoptilolit agreed well with Frendlieh isothermal adsorption equation.
出处
《安徽农业科学》
CAS
北大核心
2007年第7期2061-2062,共2页
Journal of Anhui Agricultural Sciences
基金
甘肃省自然科学基金资助项目(3ZS041-A25-027)
甘肃省教育厅科研基金(0501-07)
关键词
斜发沸石
改性
对硝基苯胺
吸附
Clinoptilolit
Modified
P-nitroaniline
Adsorption
