摘要
通过对膨润土进行十六烷基三甲基溴化铵改性后所得到有机膨润土,研究了CTMAB有机膨润土对六六六的吸附性能,通过气相色谱测定了标准曲线、吸附平衡时间和吸附等温线,结果表明：六六六的浓度低于100 μg/mL时,峰面积与浓度成线性关系,在溶液中,CTMAB有机膨润土对六六六的吸附120 min即可达到平衡。室温条件下,六六六初始浓度O．1000 g/L,吸附剂投加量10g/L,吸附时间为120 min,有机膨润土对六六六的去除率达78.8％,对六六六的Freudlich吸附等温线近似成直线,该吸附符合Freudlich模型,可用Freudlich理论探讨其吸附机理。
Organobentonite was synthesized by placing cetyltrimethyl ammonium bromide （CTMAB） surfactants into montmoriUonite layer in bentonite. This article studies the adsorption of CTMAB-organobentonite to BHC. Bration curves, absorbent equilibrium time and adsorbent isotherms were synthesized and analyzed their peak area by vapor-phase chromatography. The experiment results indicated that the adsorption had liner relation with peak area and consistency when the consistency of BHC bellowed 100μg/ml. When 0.1000 g/L BHC were used for 10 g/L CTMAB-organobentonite, the adsorbent rate was up to 78.7 %. The Freudlich adsorbent isotherms of CTMAB-organobentonite were characterized by liner and the adsorbent according to the Freudlieh theory mode can be inquired.
出处
《广州化工》
CAS
2006年第2期24-26,共3页
GuangZhou Chemical Industry
