共聚苯胺/邻氨基苯酚介孔硅复合材料对Hg(Ⅱ)的吸附动力学研究  

Study on Adsorption Dynamic of Hg(Ⅱ) from Aqueous Solutions by Poly Aniline-co-o-Aminophenol and Mesoporous Silica Nanocomposite

作　　者：王翠兰[1] 唐荣[1] 潘旸[1] 翟建平[1] 

机构地区：[1]南京大学环境学院污染控制与资源化研究国家重点实验室,南京210093

出　　处：《环境保护科学》2010年第2期17-19,27,共4页Environmental Protection Science

基　　金：污染控制与资源化研究国家重点实验室专项经费资助;南京大学污染控制与资源化国家重点实验室专项经费的资助

摘　　要：利用共聚苯胺邻氨基酚与介孔硅SBA-15的复合材料进行了汞离子的吸附性能试验研究,发现该复合材料对Hg(Ⅱ)具有较优异的吸附去除效果,对几种不同初始浓度的汞离子的去除率均可达到95%以上;对初始浓度为100mg/L的汞溶液的吸附动力学分别进行了一级和二级动力学模型拟合,结果表明该吸附材料对汞的吸附符合准二级动力学模型。A compound material of poly aniline - co - o - aminophenol （PAOA） and mesoporous Silica SBA - 15 with excellent electric prope.rties was synthesized in this paper. The obtained PAOA imnocomposite was tested for adsorption of mercury （ Hg2 ＋ ） ions from aqueous solutions. The results of this study indicate that the removal rates of the PAOA for Hg2 ＋ adsorption were all over 95 % under different initial concentration of Hg2 ＋ . The study of first - order dynamic and second - order dynamic model - fitting showed that the pseudo - second - order dynamic was the best applicable model to describe the adsorption process under the initial concentration of Hg2 ＋ = 100mg/1.

关 键 词：苯胺 邻氨基酚 SBA-15 吸附 汞离子 动力学 

分 类 号：O641.4[理学—物理化学]