环境工程学报2012，Vol.6Issue(12)：4481-4486,6.
有机改性凹凸棒土的制备表征及其对4-氯苯酚的吸附
Preparation and characterization of modified attapuigite and its adsorption to 4-chlorophenol
摘要
Abstract
The attapulgite was modified by hexadecyl trimethylammonium bromide (HDTMA). The modified attapulgite was characterized by SEM, XRD,FT-IR, specific surface area and pore size distribution. The results showed that HDTMA was loaded on the surface of attpulgite and didn't change its crystal structure. The adsorption results indicated that adsorption equilibrium of 4-chlorophenols onto the modified attapulgite was achieved within 30 minutes. The adsorption fitted well with the pseudo-second-order kinetic model. The fitted isotherm equation of the adsorption accorded with the Henry absorption model and it is better for adsorption under pH = 6.7.关键词
改性凹凸棒土/十六烷基三甲基溴化铵/4-氯苯酚/吸附等温线/吸附动力学Key words
modified attapulgite/hexadecyl trimethylammonium bromide (HDTMA)/4-chlorophenol/ad- sorption isotherm/adsorption dynamic分类
资源环境引用本文复制引用
宋燕,王海玲,朱兆连,孙进..有机改性凹凸棒土的制备表征及其对4-氯苯酚的吸附[J].环境工程学报,2012,6(12):4481-4486,6.基金项目
江苏省高校自然科学研究项目 （）
南京工业大学青年教师学术基金资助项目 （）
