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| 偕胺肟基纤维对液相中Au~(3+)吸附性能的研究 | |
| 引用本文： | 赵可江,赵亮,田振邦,黄伟庆,黄做华.偕胺肟基纤维对液相中Au~(3+)吸附性能的研究[J].河南科学,2007,25(1):43-45. |
| 作者姓名： | 赵可江 赵亮 田振邦 黄伟庆 黄做华 |
| 作者单位： | 1. 河南师范大学,化学与环境科学学院,河南,新乡,453007 2. 河南省科学院,化学研究所,郑州,450002 3. 河南省高的环境与化学研究所,郑州,450008 |
| 基金项目： | 科技部"国际科技合作重点项目计划" , 河南省科技攻关项目 |
| 摘 要： | 通过静态吸附实验测试了偕胺肟基纤维的静态吸金性能.考察了溶液pH值对偕胺肟基纤维吸附Au3+的影响,当pH值位于2～3之间时偕胺肟基纤维对Au3+具有最大吸附,达到2000mg/g纤维.偕胺肟基纤维在吸附溶液中Au3+的过程中受Nerst膜扩散的影响1,88min时吸附率达到97%,其吸附速率常数k=0.0197min-1;在25℃下偕胺肟基纤维对Au3+的吸附等温线符合Frendlich等温式,其中lnK=7.34,表明偕胺肟基纤维对Au3+具有很强的吸附性能,1/n<2,螯合吸附反应容易进行。 |
| 关 键 词： | 静态吸附 偕胺肟基纤维 Nerst膜扩散 Frendlich等温式 |
| 文章编号： | 1004-3918（2007）01-0043-03 |
| 修稿时间： | 2006-10-28 |
Preliminary Study on the Adsorption Behaviour for Au3+ of Amidoxime Group-Containing Fiber |
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| ZHAO Ke-jiang,ZHAO Liang,TIAN Zhen-bang,HUANG Wei-qing,HUANG Zuo-hua.Preliminary Study on the Adsorption Behaviour for Au3+ of Amidoxime Group-Containing Fiber[J].Henan Science,2007,25(1):43-45. | |
| Authors: | ZHAO Ke-jiang ZHAO Liang TIAN Zhen-bang HUANG Wei-qing HUANG Zuo-hua |
| Institution: | 1. Chemistry and Environment Science College, Henan Normal University, Xinxiang 453007, China; 2. Institute of Chemistry, Henan Academy of Science, Zhengzhou 450002, China; 3. Henan GaoDi Research Institute for Environmental and Chemicals, Zhengzhou 450008, China |
| Abstract: | Through static adsorption tested the Au3+ adsorption behaviour of amidoxime fiber.Investigated the affect of pH value on the adsorption performance,when the pH value was between 2～3,the static adsoption capacity of AO-fiber reached the maximam,which was 2 000 mg /g fiber.In the process of adsorption,it was controlled by Nerst film diffussion,at 188 minutes the adsprition rate reaxhed 97%,the velocity constant k=0.019 7 min-1;under 25 ℃ it obeyed the Frendlich isotherms,ln K=7.34 which indicated the strong adsorptive property,and 1/N<2,the adsorption reaction was easy to carry out. |
| Keywords: | static adsorption amidoxime fiber Nerst film diffussion Frendlich isotherms |
| 本文献已被 CNKI 维普 万方数据 等数据库收录！ | |