【摘要】 本文用溴化十六烷基三甲铵(CTMAB)-改性膨润土,研究了CTMAB-膨润土吸附水中α-萘胺、β-萘胺、α-萘酚、硝基苯和苯胺的性能和适宜条件.结果表明,CTMAB-膨润土对水中有机物的吸附能力与CTMAB在膨润土上的实际交换量有关,也与作用方式和有机物辛醇-水分配系数有关.CTMAB-膨润土对五种有机物的去除率顺序为:α-萘胺、β-萘胺、α-萘酚>硝基苯>苯胺.更多还原

【Abstract】 The CTMAB-bentonites were synthesized by cation exchange reaction between cetyltrimethylammonium bromide (CTMAB) and bentonite. The optimum conditions using CTMAB-bentonites for adsorption of α-naphthylamine, β-naphthylamine, a-naph-thol, nitrobenzene and aniline in water were investigated in detail. The removal order for organic compounds in water are as follows: α-naphthylamine, β-naphthylamine, α-naphthol>nitrobenzene>aniline. The structure of CTMAB-bentonite and its adsorption mechanism were studied by X-ray diffraction and octanol-water partition coefficient (Kow) of organics.更多还原