| 海泡石对有机染料的吸附行为研究 |
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| 引用本文： | 刘金泉,贾堤,姚兴芳,黄宁.海泡石对有机染料的吸附行为研究[J].岩石矿物学杂志,2003,22(4):377-380. |
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| 作者姓名： | 刘金泉 贾堤 姚兴芳 黄宁 |
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| 作者单位： | 天津城市建设学院,材料工程系,天津,300384 |
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| 基金项目： | 天津市高等学校科技发展基金资助项目 ( 2 0 0 10 40 3 ) |
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| 摘 要： | 以热酸活化过的海泡石为吸附剂，研究其对亚甲基蓝、结晶紫和甲基绿3种染料的吸附动力学过程，并分析了浓度、温度等因素对海泡石吸附效果的影响。结果表明，温度的变化对吸附的影响较小，而染料溶液浓度的改变则会对吸附产生很大的影响，由此确定出较适合的反应条件。采用傅立叶红外光谱技术对吸附前后海泡石的结构进行了分析，发现亚甲基蓝由于分子体积较小可以进入海泡石内部通道，而大体积的结晶紫和甲基绿的吸附主要发生在海泡石外表面，且一价有机阳离子会在中性位置发生吸附，形成带电或中性复合物。
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| 关 键 词： | 海泡石 有机染料 吸附动力学 亚甲基蓝 结晶紫 甲基绿 红外光谱 印染废水 废水处理 |
| 文章编号： | 1000-6524(2003)04-0377-04 |
| 修稿时间： | 2003年1月20日 |
Adsorption behavior of organic dyes on sepiolite |
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| LIU Jin_quan,JIA Di,YAO Xing_fang and HUANG Ning.Adsorption behavior of organic dyes on sepiolite[J].Acta Petrologica Et Mineralogica,2003,22(4):377-380. |
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| Authors: | LIU Jin_quan JIA Di YAO Xing_fang and HUANG Ning |
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| Abstract: | The adsorption kinetic processes of methylene blue, crystal violet and methyl green from aqueous solution on activated sepiolite were studied, and the effects of concentration and temperature on adsorption were analyzed. FTIR measurement was performed on sepiolite and sepiolite_dyes. The results show that the concentration has greater influence on the adsorption behavior than the temperature. Due to its small molecular dimensions, methylene blue can migrate into the tunnels of sepiolite, while the more voluminous dyes such as crystal violet and methyl green are mainly adsorbed on the external surface of sepiolite. Monovalent organic cations can be adsorbed on the neutral sites of sepiolite and form neutral or monovalently charged complexes. |
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| Keywords: | sepiolite organic dyes adsorption methylene blue crystal violet methyl green infrared spectrum |
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