| 有机膨润土的吸附性能研究 |
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| 引用本文： | 李益民 朱利中. 有机膨润土的吸附性能研究[J]. 高等学校化学学报, 1997, 18(5): 723-725 |
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| 作者姓名： | 李益民 朱利中 |
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| 作者单位： | 杭州大学环境科学系!杭州，310028 |
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| 摘 要： | 有机膨润土处理水中有机物的研究已有报道［1－4］，但尚无就改性所用的表面活性剂对有机膨润土吸附性能的影响及规律的系统研究，对有机膨润土与不同有机物间作用机理的报道也甚少［1］．本文用3种不同的阳离子表面活性剂改性膨润土，并从等温吸附线的特征和有机物的辛醇－水分配系数较系统地研究了有机膨润上对几种有机物的吸附性能和作用机理．1实验部分1．1材料原士为钠基膨润土，经测定其阳离子交换容量为7464meg／100g土；澳化十六烷基王甲铰（CTMAB）为分析纯，溪化十二烷基三甲铰（DTMAB，95％），演化十八烷基三甲按（OTMAB…
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| 关 键 词： | 膨润土 阳离子 表面活性剂 吸附性能 |
Studies on the Properties and Mechanism for Organobentonites to Adsorb Organic Compounds |
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| LI Yi-Min, ZHU Li-Zhong, WANG Ju, ZHANG Jian-Ying. Studies on the Properties and Mechanism for Organobentonites to Adsorb Organic Compounds[J]. Chemical Research In Chinese Universities, 1997, 18(5): 723-725 |
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| Authors: | LI Yi-Min ZHU Li-Zhong WANG Ju ZHANG Jian-Ying |
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| Abstract: | 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. |
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| Keywords: | Bentonite Cation surfactants Adsorption |
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