| 硅酸镧镓晶体微天平测定石蜡膜的吸附特性 |
| |
| 引用本文： | 亓永,康琪,李晓玉,申大忠.硅酸镧镓晶体微天平测定石蜡膜的吸附特性[J].传感器与微系统,2006,25(9):43-45. |
| |
| 作者姓名： | 亓永 康琪 李晓玉 申大忠 |
| |
| 作者单位： | 山东师范大学,化学化工与材料科学学院,山东,济南,250014 |
| |
| 摘 要： | 硅酸镧镓晶体微天平(LCM)是以硅酸镧镓晶体为压电材料研制的新型压电式传感器,对表面质量负载变化有灵敏的频率响应。在LCM表面浇铸石蜡薄膜,实时监测十二烷基苯磺酸钠在石蜡膜表面吸附过程中的质量变化,结果表明:其吸附过程呈现可逆吸附特征,并可以用Langmu ir等温线和动力学模型进行回归分析,获得吸附/脱附速率常数、平衡常数、饱和吸附量等参数,并讨论了盐浓度的影响。
|
| 关 键 词： | 硅酸镧镓晶体微天平 石蜡膜 吸附 十二烷基苯磺酸钠 |
| 文章编号： | 1000-9787（2006）09-0043-03 |
| 收稿时间： | 2006-04-07 |
| 修稿时间： | 2006年4月7日 |
Monitor adsorption performance of surfactant on paraffine film by LCM |
| |
| QI Yong,KANG Qi,LI Xiao-yu,SHEN Da-zhong.Monitor adsorption performance of surfactant on paraffine film by LCM[J].Transducer and Microsystem Technology,2006,25(9):43-45. |
| |
| Authors: | QI Yong KANG Qi LI Xiao-yu SHEN Da-zhong |
| |
| Affiliation: | School of Chemistry Chemical Engineering and Material Science, Shandong Normal University, Jinan 250014, China |
| |
| Abstract: | A langasite crystal microbalance(LCM),a new type of piezoelectric sensor is fabricated by using langasite crystal as the piezoelectric material.The LCM has a sensitive frequency response to the change on surface mass loading.A paraffine film is cast on the surface of the LCM.The adsorbed mass of sodium dodecyl sulfonate on paraffine surface is monitored real time by the LCM sensor.The result shows shown that the adsorption performance is reversible and regress analyse is done by the Langmuir type isotherm.The rate constants for adsorption and desorption,equilibrium constant of adsorption and saturation adsorbed mass are obtained.The influence of salt concentration is tested. |
| |
| Keywords: | langasite crystal microbalance(LCM) paraffine film adsorption sodium dodecyl sulfonate(SDS) |
| 本文献已被 CNKI 维普 万方数据 等数据库收录！ |
