| 液隔电极式压电传感器研究阳离子表面活性剂在石英？… |
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| 引用本文： | 张鹏,康琪.液隔电极式压电传感器研究阳离子表面活性剂在石英？…[J].山东科技大学学报(自然科学版),2000,19(1):4-7. |
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| 作者姓名： | 张鹏 康琪 |
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| 作者单位： | [1]山东大学化学学院 [2]山东科技大学化学工程系 |
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| 摘 要： | 在液隔电极式压电传感器的构造中，石英表面与溶液直接接触，而石英表面ＰＨ〉２溶液的溶液中带负电荷，因此可以吸附阳 型表面活性剂分子。本文以ＥＳＰＳ方法实时监测表面活性剂十六烷基二苯基溴化铵在石英晶体表面的吸附过程。
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| 关 键 词： | 表面活性剂 吸附 压电传感器 石英表 |
| 文章编号： | 1000-2308(2000)01-0004-04 |
| 修稿时间： | 2000-01-27 |
Adsorption Studies of Cationic Surfactant onto Quartz |
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| ZHANG Peng
,ZHAO Xin-sheng
,SHEN Da-zhong
KANG Qi
, LIU Ze-chang.Adsorption Studies of Cationic Surfactant onto Quartz[J].Journal of Shandong Univ of Sci and Technol: Nat Sci,2000,19(1):4-7. |
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| Authors: | ZHANG Peng ZHAO Xin-sheng SHEN Da-zhong
KANG Qi LIU Ze-chang |
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| Institution: | ZHANG Peng
,ZHAO Xin-sheng
,SHEN Da-zhong
;(Chemistry College, Shandong University);KANG Qi
, LIU Ze-chang
;(Dep. of Chemical Eng., SUST) |
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| Abstract: | In the configuration of an electrode separated piezoelectric sensor (ESPS),the qurtz surface in directly contact with the liquids phase.Quartz surface is charged negatively in solutions of pH>2 and can adsorb cationic surfactants.In this paper,the adsorption process of cetyldimethylbenzylammonium (CDMBA) onto quartz crystal surface of the was real time monitored by the ESPS method.The oscillating frequency of the ESPS decreases linearly with increasing adsorption mass of the surfactant. The influence of surface roughness of the quartz crystal on the adsorption density were discussed. The dependence of the adsorption density on pH and ionic strength was reported. |
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| Keywords: | surfactant adsorption quartz piezoelectric sensors |
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