摘要
研究了不同浓度的表面活性剂十二烷基苯磺酸钠 (SDBS)对 2 4 D在土壤中吸附的影响 .结果表明 :在SDBS小于其临界胶束浓度 (CMC)时 ,2 4 D的吸附量增加 ;而当SDBS浓度大于其临界胶束浓度时 ,2 4 D的吸附量随SDBS浓度的增加而减少 .表面活性剂对 2 4 D吸附行为的影响是几种作用的共同结果 ,根据SDBS的性质 ,解释了表面活性剂对 2 4 D吸附行为影响的几个不同途径 .
The effects of surfactant sodium dodecylbenzene sulfonate(SDBS) on 24-D adsorption in the soil were determined in laboratory studies.The results showed that at and below the critical micelle concentration(CMC)of SDBS,24-D adsorption in soil was increased,while above the CMC,24-D adsorption was significantly reduced.The effects of the SDBS on 24-D adsorption in soil were caused by several actions.Various hypothesis,based on surfactant properties,were offered to explain the adsorption results.
出处
《环境化学》
CAS
CSCD
北大核心
2002年第4期356-359,共4页
Environmental Chemistry
基金
中国科学院资源与生态环境重大研究项目B基金资助项目 :KZ 95 1 B1 2 0 9
