| Tween20对DDT在胶州湾沉积物上吸附行为的影响 |
| |
| 引用本文： | 曹晓燕,宫晓飞,杨桂朋,景建宁.Tween20对DDT在胶州湾沉积物上吸附行为的影响[J].环境科学学报,2011,31(10):2246-2253. |
| |
| 作者姓名： | 曹晓燕 宫晓飞 杨桂朋 景建宁 |
| |
| 作者单位： | 中国海洋大学海洋化学理论与工程技术教育部重点实验室,青岛,266100 |
| |
| 基金项目： | 国家自然科学基金项目(No.40876037,40525017);教育部"长江学者"奖励计划;山东省"泰山学者"建设工程专项;山东省科技攻关项目(No.2006GG2205024) |
| |
| 摘 要： | 研究了非离子表面活性剂失水山梨醇聚氧乙烯（20）醚月桂酸酯（Tween20）对二氯二苯基三氯乙烷（滴滴涕,DDT）在海洋沉积物上吸附动力学和热力学行为的影响.在实验浓度范围内,Tween20的加入能够加快DDT在沉积物上的吸附速率,吸附符合伪二级吸附速率方程,吸附等温线符合Freundlich等温式,吸附作用随着Twe...
|
| 关 键 词： | 沉积物 Tween20 DDT 吸附动力学 吸附热力学 胶州湾 |
| 收稿时间： | 2010/12/14 0:00:00 |
| 修稿时间： | 2011/3/13 0:00:00 |
Influence of Tween20 on sorption behaviors of DDT on sediment from Jiaozhou Bay |
| |
| CAO Xiaoyan,GONG Xiaofei,YANG Guipeng and JING Jianning.Influence of Tween20 on sorption behaviors of DDT on sediment from Jiaozhou Bay[J].Acta Scientiae Circumstantiae,2011,31(10):2246-2253. |
| |
| Authors: | CAO Xiaoyan GONG Xiaofei YANG Guipeng and JING Jianning |
| |
| Institution: | Key Laboratory of Marine Chemistry Theory and Technology, Ministry of Education, Ocean University of China, Qingdao 266100,Key Laboratory of Marine Chemistry Theory and Technology, Ministry of Education, Ocean University of China, Qingdao 266100,Key Laboratory of Marine Chemistry Theory and Technology, Ministry of Education, Ocean University of China, Qingdao 266100 and Key Laboratory of Marine Chemistry Theory and Technology, Ministry of Education, Ocean University of China, Qingdao 266100 |
| |
| Abstract: | The effects of nonionic surfactant Tween20 on the sorption of DDT onto sediment were studied through kinetic and thermodynamic analysis.Tween20 could accelerate the sorption rate of DDT onto sediment and the sorption kinetic curves could be fitted by the pseudo-second-order model well in experimental concentrations.The sorption isotherms were in good agreement with the Freundlich equation.The sorption capacity increased with increasing initial concentrations of Tween20.Studies on impact factors of the sorpt... |
| |
| Keywords: | sediment Tween20 DDT sorption kinetics sorption thermodynamics Jiaozhou Bay |
| 本文献已被 CNKI 万方数据 等数据库收录！ |
| 点击此处可从《环境科学学报》浏览原始摘要信息 |
| 点击此处可从《环境科学学报》下载免费的PDF全文 |
|
