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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
【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。
【Abstract】 A compound material of poly aniline-co-o-aminophenol(PAOA) and mesoporous Silica SBA-15 with excellent electric properties was synthesized in this paper.The obtained PAOA nanocomposite 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/l.
【Key words】 Aniline O-Aminophenol SBA-15 Adsorption Mercury(II) Dynamic Study;
- 【文献出处】 环境保护科学 ,Environmental Protection Science , 编辑部邮箱 ,2010年02期
- 【分类号】X703
- 【被引频次】9
- 【下载频次】268