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Citation: LIAO Wen-Ju, ZOU Chang-Jun, LEI Ying. Decreased Adsorption Capacity of CTAB in Montmorillonite by β-Cyclodextrin[J]. Chinese Journal of Applied Chemistry, ;2008, 25(9): 1057-1060. shu

Decreased Adsorption Capacity of CTAB in Montmorillonite by β-Cyclodextrin

1.
College of Chemistry and Chemical Engineering, Southwest Petroleum University, Chengdu 610500

Corresponding author: ZOU Chang-Jun,
Received Date: 17 September 2007
Available Online: 3 December 2007
Fund Project: 四川省应用基础研究重点课题(2006J13-063)资助项目 (2006J13-063)

To study the effect of β-cyclodextrin(β-CD) on the adsorptive action of cetyl trimethylammonium bromide(CTAB) in Na-montmorillonite,the inclusion activity between β-CD and CTAB was studied by measuring the surface tension of the solution at 303.15 K.The result shows that the host-guest inclusion complex's stoichiometric ratio is 1.53:1.By comparing the adsorption rate before and after inclusion,the mechanism that the adsorption capacity of CTAB in Na-montmorillonite is decreased by β-CD is studied.The adsorption capacity of CTAB in Na-montmorillonite decreased by about 75% after inclusion by β-CD.Simulated oil displacement experiment confirmed that the utilization ratio of CTAB has been increased significantly after CTAB having been included.
- β-Cyclodextrin,
- CTAB,
- inclusion complex,
- montmorillonite,
- adsorption
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