有机膨润土的吸附性能研究  

Studies on the Properties and Mechanism for Organobentonites to Adsorb Organic Compounds

作　　者：李益民[1] 朱利中[1] 王珏 张建英[1] 

机构地区：[1]杭州大学环境科学系,杭州310028

出　　处：《高等学校化学学报》1997年第5期723-725,共3页Chemical Journal of Chinese Universities

基　　金：浙江省自然科学基金

摘　　要：Three organobentonites were synthesized by placing cation surfactants such as octadecyltrimethylammonium bromide (OTMAD ), cetyltrimethylammonium bromide (CTMAB) and dodecyltrimethylammonium bromide(DTMAB) on bentonite. The properties for organobentonites to adsorb phenol, p-nitrophenol, aniline, nitrobenzene and 1-naphthylamine in water were investigated in detail. The mechanism that organic compounds were adsorbed by organobentonites was studied. The removal rates for organobentonites to treat organic compounds from water were associated with the properties of organic compounds, the ammount of cation surfactants exchanged on the bentonite and the length of alkyl chain of the cation surfactant.Three organobentonites were synthesized by placing cation surfactants such as octadecyltrimethylammonium bromide (OTMAD ), cetyltrimethylammonium bromide (CTMAB) and dodecyltrimethylammonium bromide(DTMAB) on bentonite. The properties for organobentonites to adsorb phenol, p-nitrophenol, aniline, nitrobenzene and 1-naphthylamine in water were investigated in detail. The mechanism that organic compounds were adsorbed by organobentonites was studied. The removal rates for organobentonites to treat organic compounds from water were associated with the properties of organic compounds, the ammount of cation surfactants exchanged on the bentonite and the length of alkyl chain of the cation surfactant.

关 键 词：膨润土 阳离子 表面活性剂 吸附性能 

分 类 号：O647.33[理学—物理化学]